软件世界网 购物 网址 三丰软件 | 小说 美女秀 图库大全 游戏 笑话 | 下载 开发知识库 新闻 开发 图片素材
多播视频美女直播
↓电视,电影,美女直播,迅雷资源↓
TxT小说阅读器
↓语音阅读,小说下载,古典文学↓
一键清除垃圾
↓轻轻一点,清除系统垃圾↓
图片批量下载器
↓批量下载图片,美女图库↓
移动开发 架构设计 编程语言 Web前端 互联网
开发杂谈 系统运维 研发管理 数据库 云计算 Android开发资料
  软件世界网 -> Web前端 -> javaweb网站头像上传处理(springmvc+bootstrap+cropper) -> 正文阅读
Web前端 最新文章
10分钟
SSM框架SSM项目源码SSM源码下载java框架整合
javascript入门
JavaScript常用对象Array(2)
8.Smarty3:模版中的内置函数
表单脚本
iTextSharp5.0页眉页脚及Asp.net预览的实现
MVC基础学习—理论篇
JavaScript
http协议中get与post区别详解

[Web前端]javaweb网站头像上传处理(springmvc+bootstrap+cropper)

  2016-04-01 16:49:24

制作头像上传。请根据您的实际需求,修改代码,不完全正确,仅供参考!
前端页面设计使用bootstrap ,头像预览和剪裁工具使用cropper
后台使用springmvc。
现在来看前端的页面设计
前端页面设计,自然需要bootstrap 、jqury 和cropper ,这可以自行去网上百度查找
剪裁效果图

html 文件
<!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8">
    <title>cropper</title>
    <link href="css/bootstrap.css" rel="stylesheet"/>
    <link href="js/plugins/cropper/cropper.css" rel="stylesheet"/>
    <link href="css/style.css" rel="stylesheet"/>

</head>
<body>
<div class="container" id="crop-avatar">

    <!-- Current avatar -->
    <div style="text-align:center;color:red;margin:50px 0">提示:点击头像上传</div>
    <div class="avatar-view" title="Change the avatar">
        <img src="images/snow.jpg" alt="Avatar"/>
    </div>

    <!-- Cropping modal -->
    <div class="modal fade" id="avatar-modal" aria-hidden="true" aria-labelledby="avatar-modal-label" role="dialog" tabindex="-1">
        <div class="modal-dialog modal-lg">
            <div class="modal-content">
                <form class="avatar-form" action="crop.php" enctype="multipart/form-data" method="post">
                    <div class="modal-header">
                        <button class="close" data-dismiss="modal" type="button">×</button>
                        <h4 class="modal-title" id="avatar-modal-label">更换头像</h4>
                    </div>
                    <div class="modal-body">
                        <div class="avatar-body">

                            <!-- Upload image and data -->
                            <div class="avatar-upload">
                                <input class="avatar-src" name="avatar_src" type="hidden"/>
                                <input class="avatar-data" name="avatar_data" type="hidden"/>
                                <label for="avatarInput">头像上传</label>
                                <input class="avatar-input " id="avatarInput" name="avatar_file" type="file" accept="image/*"/>
                            </div>

                            <!-- Crop and preview -->
                            <div class="row">
                                <div class="col-md-9">
                                    <div class="avatar-wrapper"></div>
                                </div>
                                <div class="col-md-3">
                                    <!--<div class="avatar-preview preview-lg"></div>-->
                                    <div class="avatar-preview preview-md">
                                        <label>100*100</label>
                                    </div>
                                    <div class="avatar-preview preview-sm" title="50*50">
                                        <label>50*50</label>
                                    </div>
                                    <div class="avatar-preview preview-xs">
                                        <label>30*30</label>
                                    </div>
                                    <div class="input-group input-group-sm">
                                        <label class="input-group-addon" for="dataX">X</label>
                                        <input type="text" class="form-control" id="dataX" name="x" placeholder="x" >
                                        <span class="input-group-addon">px</span>
                                    </div>
                                    <div class="input-group input-group-sm">
                                        <label class="input-group-addon" for="dataY">Y</label>
                                        <input type="text" class="form-control" id="dataY" name="y" placeholder="y">
                                        <span class="input-group-addon">px</span>
                                    </div>
                                    <div class="input-group input-group-sm">
                                        <label class="input-group-addon" for="dataWidth">Width</label>
                                        <input type="text" class="form-control" id="dataWidth" name="width" placeholder="width">
                                        <span class="input-group-addon">px</span>
                                    </div>
                                    <div class="input-group input-group-sm">
                                        <label class="input-group-addon" for="dataHeight">Height</label>
                                        <input type="text" class="form-control" id="dataHeight" name="height" placeholder="height">
                                        <span class="input-group-addon">px</span>
                                    </div>
                                    <div class="input-group input-group-sm">
                                        <label class="input-group-addon" for="dataRotate">Rotate</label>
                                        <input type="text" class="form-control" id="dataRotate" placeholder="rotate">
                                        <span class="input-group-addon">deg</span>
                                    </div>
                                    <div class="input-group input-group-sm">
                                        <label class="input-group-addon" for="dataScaleX">ScaleX</label>
                                        <input type="text" class="form-control" id="dataScaleX" placeholder="scaleX">
                                    </div>
                                    <div class="input-group input-group-sm">
                                        <label class="input-group-addon" for="dataScaleY">ScaleY</label>
                                        <input type="text" class="form-control" id="dataScaleY" placeholder="scaleY">
                                    </div>
                                </div>
                            </div>

                            <div class="row avatar-btns">
                                <div class="col-md-9">
                                    <div class="btn-group">
                                        <button class="btn btn-primary" data-method="rotate" data-option="-90" type="button" title="Rotate -90 degrees">向左旋转</button>
                                        <button class="btn btn-primary" data-method="rotate" data-option="-15" type="button">-15deg</button>
                                        <button class="btn btn-primary" data-method="rotate" data-option="-30" type="button">-30deg</button>
                                        <button class="btn btn-primary" data-method="rotate" data-option="-45" type="button">-45deg</button>
                                    </div>
                                    <div class="btn-group">
                                        <button class="btn btn-primary" data-method="rotate" data-option="90" type="button" title="Rotate 90 degrees">向右旋转</button>
                                        <button class="btn btn-primary" data-method="rotate" data-option="15" type="button">15deg</button>
                                        <button class="btn btn-primary" data-method="rotate" data-option="30" type="button">30deg</button>
                                        <button class="btn btn-primary" data-method="rotate" data-option="45" type="button">45deg</button>
                                    </div>
                                </div>
                                <div class="col-md-3">
                                    <button class="btn btn-primary btn-block avatar-save" type="submit">确定</button>
                                </div>
                            </div>
                        </div>
                    </div>
                    <!-- <div class="modal-footer">
                      <button class="btn btn-default" data-dismiss="modal" type="button">Close</button>
                    </div> -->
                </form>
            </div>
        </div>
    </div><!-- /.modal -->

    <!-- Loading state -->
    <div class="loading" aria-label="Loading" role="img" tabindex="-1"></div>
</div>

<script src="js/jquery-2.1.4.min.js"></script>
<script src="js/bootstrap.min.js"></script>
<script src="js/plugins/cropper/cropper.min.js"></script>
<script src="js/cropper-tool.js"></script>
</body>
</html>

js处理文件如下
main,js
$(function () {

  'use strict';

  var console = window.console || { log: function () {} };
  var $image = $('#image');
  var $download = $('#download');
  var $dataX = $('#dataX');
  var $dataY = $('#dataY');
  var $dataHeight = $('#dataHeight');
  var $dataWidth = $('#dataWidth');
  var $dataRotate = $('#dataRotate');
  var $dataScaleX = $('#dataScaleX');
  var $dataScaleY = $('#dataScaleY');
  var options = {
        aspectRatio: 16 / 9,
        preview: '.img-preview',
        crop: function (e) {
          $dataX.val(Math.round(e.x));
          $dataY.val(Math.round(e.y));
          $dataHeight.val(Math.round(e.height));
          $dataWidth.val(Math.round(e.width));
          $dataRotate.val(e.rotate);
          $dataScaleX.val(e.scaleX);
          $dataScaleY.val(e.scaleY);
        }
      };


  // Tooltip
  $('[data-toggle="tooltip"]').tooltip();


  // Cropper
  $image.on({
    'build.cropper': function (e) {
      console.log(e.type);
    },
    'built.cropper': function (e) {
      console.log(e.type);
    },
    'cropstart.cropper': function (e) {
      console.log(e.type, e.action);
    },
    'cropmove.cropper': function (e) {
      console.log(e.type, e.action);
    },
    'cropend.cropper': function (e) {
      console.log(e.type, e.action);
    },
    'crop.cropper': function (e) {
      console.log(e.type, e.x, e.y, e.width, e.height, e.rotate, e.scaleX, e.scaleY);
    },
    'zoom.cropper': function (e) {
      console.log(e.type, e.ratio);
    }
  }).cropper(options);


  // Buttons
  if (!$.isFunction(document.createElement('canvas').getContext)) {
    $('button[data-method="getCroppedCanvas"]').prop('disabled', true);
  }

  if (typeof document.createElement('cropper').style.transition === 'undefined') {
    $('button[data-method="rotate"]').prop('disabled', true);
    $('button[data-method="scale"]').prop('disabled', true);
  }


  // Download
  if (typeof $download[0].download === 'undefined') {
    $download.addClass('disabled');
  }


  // Options
  $('.docs-toggles').on('change', 'input', function () {
    var $this = $(this);
    var name = $this.attr('name');
    var type = $this.prop('type');
    var cropBoxData;
    var canvasData;

    if (!$image.data('cropper')) {
      return;
    }

    if (type === 'checkbox') {
      options[name] = $this.prop('checked');
      cropBoxData = $image.cropper('getCropBoxData');
      canvasData = $image.cropper('getCanvasData');

      options.built = function () {
        $image.cropper('setCropBoxData', cropBoxData);
        $image.cropper('setCanvasData', canvasData);
      };
    } else if (type === 'radio') {
      options[name] = $this.val();
    }

    $image.cropper('destroy').cropper(options);
  });


  // Methods
  $('.docs-buttons').on('click', '[data-method]', function () {
    var $this = $(this);
    var data = $this.data();
    var $target;
    var result;

    if ($this.prop('disabled') || $this.hasClass('disabled')) {
      return;
    }

    if ($image.data('cropper') && data.method) {
      data = $.extend({}, data); // Clone a new one

      if (typeof data.target !== 'undefined') {
        $target = $(data.target);

        if (typeof data.option === 'undefined') {
          try {
            data.option = JSON.parse($target.val());
          } catch (e) {
            console.log(e.message);
          }
        }
      }

      result = $image.cropper(data.method, data.option, data.secondOption);

      switch (data.method) {
        case 'scaleX':
        case 'scaleY':
          $(this).data('option', -data.option);
          break;

        case 'getCroppedCanvas':
          if (result) {

            // Bootstrap's Modal
            $('#getCroppedCanvasModal').modal().find('.modal-body').html(result);

            if (!$download.hasClass('disabled')) {
              $download.attr('href', result.toDataURL('image/jpeg'));
            }
          }

          break;
      }

      if ($.isPlainObject(result) && $target) {
        try {
          $target.val(JSON.stringify(result));
        } catch (e) {
          console.log(e.message);
        }
      }

    }
  });


  // Keyboard
  $(document.body).on('keydown', function (e) {

    if (!$image.data('cropper') || this.scrollTop > 300) {
      return;
    }

    switch (e.which) {
      case 37:
        e.preventDefault();
        $image.cropper('move', -1, 0);
        break;

      case 38:
        e.preventDefault();
        $image.cropper('move', 0, -1);
        break;

      case 39:
        e.preventDefault();
        $image.cropper('move', 1, 0);
        break;

      case 40:
        e.preventDefault();
        $image.cropper('move', 0, 1);
        break;
    }

  });


  // Import image
  var $inputImage = $('#inputImage');
  var URL = window.URL || window.webkitURL;
  var blobURL;

  if (URL) {
    $inputImage.change(function () {
      var files = this.files;
      var file;

      if (!$image.data('cropper')) {
        return;
      }

      if (files && files.length) {
        file = files[0];

        if (/^image\/\w+$/.test(file.type)) {
          blobURL = URL.createObjectURL(file);
          $image.one('built.cropper', function () {

            // Revoke when load complete
            URL.revokeObjectURL(blobURL);
          }).cropper('reset').cropper('replace', blobURL);
          $inputImage.val('');
        } else {
          window.alert('Please choose an image file.');
        }
      }
    });
  } else {
    $inputImage.prop('disabled', true).parent().addClass('disabled');
  }

});

需要添加的css样式
style.css
.avatar-view {
    display: block;
    margin: 0 auto;
    height: 220px;
    width: 220px;
    border: 3px solid #fff;
    border-radius: 5px;
    box-shadow: 0 0 5px rgba(0,0,0,.15);
    cursor: pointer;
    overflow: hidden;
}

.avatar-view img {
    width: 100%;
}

.avatar-body {
    padding-right: 15px;
    padding-left: 15px;
}

.avatar-upload {
    overflow: hidden;
}

.avatar-upload label {
    display: block;
    float: left;
    clear: left;
    width: 100px;
}

.avatar-upload input {
    display: block;
    margin-left: 110px;
}

.avater-alert {
    margin-top: 10px;
    margin-bottom: 10px;
}

.avatar-wrapper {
    height: 364px;
    width: 100%;
    margin-top: 15px;
    box-shadow: inset 0 0 5px rgba(0,0,0,.25);
    background-color: #fcfcfc;
    overflow: hidden;
}

.avatar-wrapper img {
    display: block;
    height: auto;
    max-width: 100%;
}

.avatar-preview {
    float: left;
    margin-top: 15px;
    margin-right: 15px;
    border: 1px solid #eee;
    border-radius: 4px;
    background-color: #fff;
    overflow: hidden;
}

.avatar-preview:hover {
    border-color: #ccf;
    box-shadow: 0 0 5px rgba(0,0,0,.15);
}

.avatar-preview img {
    width: 100%;
}

.preview-lg {
    height: 200px;
    width: 200px;
    margin-top: 15px;
}

.preview-md {
    height: 100px;
    width: 100px;
}

.preview-sm {
    height: 50px;
    width: 50px;
}
.preview-xs{
    height:30px;
    width:30px;]
}

@media (min-width: 992px) {
    .avatar-preview {
        float: none;
    }
}

.avatar-btns {
    margin-top: 30px;
    margin-bottom: 15px;
}

.avatar-btns .btn-group {
    margin-right: 5px;
}

.loading {
    display: none;
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    background: #fff url("patterns/loading.gif") no-repeat center center;
    opacity: .75;
    filter: alpha(opacity=75);
    z-index: 20140628;
}

现在前端的基本完成。现在最重要的来了,就是后台java 处理了。在网上找过很多,发现没有,关于springmvc的,上面的内容基本上在网上找到,下面的springmvc的,关于图像处理的,就是我个人做的。好像网上有直接在前端进行剪裁的,可惜我不会啊,所以我还是老老实实的在后台处理了。

<strong>package com.cx.wxs.action.image;

import java.io.File;
import java.sql.Timestamp;
import java.util.Date;

import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.multipart.MultipartFile;

import com.cx.wxs.dto.BSiteDto;
import com.cx.wxs.dto.IAlbumDto;
import com.cx.wxs.dto.IImageDto;
import com.cx.wxs.dto.UUserDto;
import com.cx.wxs.service.BSiteService;
import com.cx.wxs.service.IImageService;
import com.cx.wxs.service.UUserService;
import com.cx.wxs.utils.DateUtils;
import com.cx.wxs.utils.clientInfo;
import com.cx.wxs.utils.imageUtils;

/**
 * @author roychenyi
 * @date   2016-3-29 下午9:22:01
 */
@Controller
@RequestMapping("/{vip}/image")
public class imageAction {

	@Resource
	private IImageService iImageService;
	@Resource
	private BSiteService bSiteService;
	@Resource
	private UUserService uUserService;

	/**
	 * @return the bSiteService
	 */
	public BSiteService getbSiteService() {
		return bSiteService;
	}

	/**
	 * @param bSiteService the bSiteService to set
	 */
	public void setbSiteService(BSiteService bSiteService) {
		this.bSiteService = bSiteService;
	}

	/**
	 * @return the uUserService
	 */
	public UUserService getuUserService() {
		return uUserService;
	}

	/**
	 * @param uUserService the uUserService to set
	 */
	public void setuUserService(UUserService uUserService) {
		this.uUserService = uUserService;
	}

	/**
	 * @return the iImageService
	 */
	public IImageService getiImageService() {
		return iImageService;
	}

	/**
	 * @param iImageService the iImageService to set
	 */
	public void setiImageService(IImageService iImageService) {
		this.iImageService = iImageService;
	}
	@RequestMapping(value="/updateuserlogo")
	@ResponseBody
	public IImageDto updateUserLogo( @PathVariable("vip") String vip,
			 Integer x, Integer y, Integer width, Integer height,Integer degree,
			@RequestParam(value = "avatar_file") MultipartFile imageFile, HttpServletRequest request,HttpServletResponse response){
		IImageDto imageDto=new IImageDto();
		//获取服务器的实际路径
 		String realPath = request.getSession().getServletContext().getRealPath("/");
	    System.out.println("x:"+x+"y:"+y+"width:"+width+"height:"+height+"degree:"+degree);
		System.out.println(realPath);
		//需要上传的路径,我的路径根据用户的和当前日期划分路径
		String resourcePath="upload/image";
		UUserDto userDto=(UUserDto) request.getSession().getAttribute("user");
		resourcePath+="/"+userDto.getUserId();
	
		 if(imageFile!=null){
			 try{
			//文件名
			 String name= imageFile.getOriginalFilename();
			 //获取时间的路径
			 Date date=new Date();			 
			 int year=DateUtils.getYear(date);
			 int month=DateUtils.getMonth(date);
			 int day=DateUtils.getDay(date);
			 resourcePath+="/"+year+"/"+month+"/"+day+"/";
			 File dir=new File(realPath+resourcePath);
			 if(!dir.exists()){
				 dir.mkdirs();
			 }
			 //先把用户上传到原图保存到服务器上
			 File file=new File(dir,date.getTime()+".jpg");
			 imageFile.transferTo(file);
			 if(file.exists()){
				 String src=realPath+resourcePath+date.getTime();
				 
				 boolean[] flag=new boolean[6];
				 //旋转后剪裁图片
				 flag[0]=imageUtils.cutAndRotateImage(src+".jpg", src+"_s.jpg", x, y, width, height, degree);
				 //缩放图片,生成不同大小的图片,应用于不同的大小的头像显示
				 flag[1]= imageUtils.scale2(src+"_s.jpg", src+"_s_200.jpg", 200, 200, true);
				 flag[2]= imageUtils.scale2(src+"_s.jpg", src+"_s_100.jpg", 100, 100, true);
				 flag[3]= imageUtils.scale2(src+"_s.jpg", src+"_s_50.jpg", 50, 50, true);
				 flag[4]= imageUtils.scale2(src+"_s.jpg", src+"_s_30.jpg", 30, 30, true);
				 flag[5]= imageUtils.scale2(file.getPath(), src+"_200.jpg", 200, 200, true);
				 
				 if(flag[0]&&flag[1]&&flag[2]&&flag[3]&&flag[4]&&flag[5]){
					 //图像处理完成,将数据写入数据库中
					 imageDto.setYear((short) year);
					 imageDto.setMount((short)month);
					 imageDto.setDay((short)day);
					 imageDto.setUUserDto(userDto);
					 imageDto.setName(date.getTime()+".jpg");
					 imageDto.setFileName(name);
					 imageDto.setUrl(resourcePath+"/"+date.getTime()+".jpg");
					 imageDto.setPreviewUrl(resourcePath+"/"+date.getTime()+"_200.jpg");
					 imageDto.setTime(new Timestamp(date.getTime()));
					 imageDto.setWidth((short)imageUtils.getImageWidth(file.getPath()));
					 imageDto.setHeight((short)imageUtils.getImageHeight(file.getPath()));
					 imageDto.setClientIp(clientInfo.getIpAddr(request));
					 imageDto.setClientAgent(clientInfo.getAgent(request));
					 imageDto.setClientType((short)(clientInfo.isMoblie(request)?1:0));
					 imageDto.setStatus((short)1);
					 imageDto.setExt3(resourcePath+"/"+date.getTime()+"_s_200.jpg");
					 imageDto.setExt4(resourcePath+"/"+date.getTime()+"_s_100.jpg");
					//设置相册,头像设置进入默认相册
					 IAlbumDto albumDto=new IAlbumDto();
					 albumDto.setAlbumId(1);
					 imageDto.setIAlbumDto(albumDto);
					 int id= iImageService.addIImage(imageDto);
					 if(id>0){
						 BSiteDto siteDto=userDto.getBSiteDto();
						 siteDto.setLogo(resourcePath+"/"+date.getTime()+"_s_100.jpg");
						 siteDto.setLastTime( new Timestamp(date.getTime()));
						 bSiteService.updateBSite(siteDto);
						 userDto.setPortrait(resourcePath+"/"+date.getTime()+"_s_30.jpg");
						 uUserService.updateUuser(userDto);
						 userDto=uUserService.getUuser(userDto);
						 imageDto.setLoginFlag("1");
						 return imageDto;
					 }
				 }
			 }
			 }catch (Exception e) {
				// TODO: handle exception
				 e.printStackTrace();
				 return imageDto;
			}

		 }
		return imageDto;
	}
}
</strong>


下面是图像处理的工具类。imageUtils.java.欢迎借鉴引用。(我也是在我网上找了很多进行参考的)
package com.cx.wxs.utils;

import java.awt.AlphaComposite;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Image;
import java.awt.Rectangle;
import java.awt.RenderingHints;
import java.awt.color.ColorSpace;
import java.awt.geom.AffineTransform;
import java.awt.image.AffineTransformOp;
import java.awt.image.BufferedImage;
import java.awt.image.ColorConvertOp;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.sql.Timestamp;
import java.util.Date;
import java.util.HashMap;
import java.util.Iterator;

import javax.imageio.ImageIO;
import javax.imageio.ImageReadParam;
import javax.imageio.ImageReader;
import javax.imageio.stream.ImageInputStream;
import javax.imageio.stream.ImageOutputStream;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import com.cx.wxs.dto.IImageDto;


/**
 * @author roychenyi
 * @date   2016-3-30 上午10:11:39
 */
public class imageUtils {
	private static Log log = LogFactory.getLog(imageUtils.class);
	

	/***
	 * 获取图片的类型
	 * @param o
	 * @return
	 * @date   2016-3-30下午4:59:36
	 */
	private static String getFormatName(Object o) {
        try {
            ImageInputStream iis = ImageIO.createImageInputStream(o);
            Iterator<ImageReader> iter = ImageIO.getImageReaders(iis);
            if (!iter.hasNext()) {
                return null;
            }
    
            ImageReader reader = iter.next();
            iis.close();
            return reader.getFormatName();
        } catch (IOException e) {
        }
        return null;
    }
	
	/**
     * 使用ImageReader获取图片尺寸
     * 
     * @param src
     *            源图片路径
     */
    public void getImageSizeByImageReader(String src) {
        long beginTime = new Date().getTime();
        File file = new File(src);
        try {
            Iterator<ImageReader> readers = ImageIO.getImageReadersByFormatName("jpg");
            ImageReader reader = (ImageReader) readers.next();
            ImageInputStream iis = ImageIO.createImageInputStream(file);
            reader.setInput(iis, true);
            System.out.println("width:" + reader.getWidth(0));
            System.out.println("height:" + reader.getHeight(0));
        } catch (IOException e) {
            e.printStackTrace();
        }
        long endTime = new Date().getTime();
        System.out.println("使用[ImageReader]获取图片尺寸耗时:[" + (endTime - beginTime)+"]ms");
    }

    /**
     * 使用BufferedImage获取图片尺寸
     * 
     * @param src
     *            源图片路径
     */
    public void getImageSizeByBufferedImage(String src) {
        long beginTime = new Date().getTime();
        File file = new File(src);
        FileInputStream is = null;
        try {
            is = new FileInputStream(file);
        } catch (FileNotFoundException e2) {
            e2.printStackTrace();
        }
        BufferedImage sourceImg = null;
        try {
            sourceImg = javax.imageio.ImageIO.read(is);
            System.out.println("width:" + sourceImg.getWidth());
            System.out.println("height:" + sourceImg.getHeight());
        } catch (IOException e1) {
            e1.printStackTrace();
        }
        long endTime = new Date().getTime();
        System.out.println("使用[BufferedImage]获取图片尺寸耗时:[" + (endTime - beginTime)+"]ms");
    }

    /***
     * 获取图片的宽
     * @param srcImageFile
     * @return
     * @date   2016-3-30下午9:01:08
     */
    public static int  getImageWidth(String srcImageFile){
         try {
        	 File file = new File(srcImageFile);
             Iterator<ImageReader> readers = ImageIO.getImageReadersByFormatName("jpg");
             ImageReader reader = (ImageReader) readers.next();
             ImageInputStream iis = ImageIO.createImageInputStream(file);
             reader.setInput(iis, true);
            
             return reader.getWidth(0);
         } catch (IOException e) {
             e.printStackTrace();
             return 0;
         }
    }
    /***
     * 获取文件的高
     * @param srcImageFile
     * @return
     * @date   2016-3-30下午9:02:19
     */
    public static int getImageHeight(String srcImageFile){
    	File file = new File(srcImageFile);
        try {
            Iterator<ImageReader> readers = ImageIO.getImageReadersByFormatName("jpg");
            ImageReader reader = (ImageReader) readers.next();
            ImageInputStream iis = ImageIO.createImageInputStream(file);
            reader.setInput(iis, true);
           
            return reader.getHeight(0);
        } catch (IOException e) {
            e.printStackTrace();
            return 0;
        }
    }
       
	/***
	 * 剪裁图片
	 * @param src
	 * @param dest
	 * @param x  起点横坐标
	 * @param y  纵坐标
	 * @param w  长
	 * @param h  高
	 * @throws IOException
	 * @date   2016-3-30下午12:19:10
	 */
	 public static boolean cutImage(String src,String dest,int x,int y,int w,int h) {   
         try{
		 Iterator iterator = ImageIO.getImageReadersByFormatName("jpg");   
         ImageReader reader = (ImageReader)iterator.next();   
         InputStream in=new FileInputStream(src);  
         ImageInputStream iis = ImageIO.createImageInputStream(in);   
         reader.setInput(iis, true);   
         ImageReadParam param = reader.getDefaultReadParam(); 
         x=(x>0?x:0);
         y=(y>0?y:0);
         Rectangle rect = new Rectangle(x, y, w,h);    
         param.setSourceRegion(rect);   
         BufferedImage bi = reader.read(0,param);     
         ImageIO.write(bi, "jpg", new File(dest));    
         return true;
         }catch (Exception e) {
			// TODO: handle exception
        	 e.printStackTrace();
        	 return false;
		}

  } 
	 /***
	  * 图片旋转指定角度
	  * @param bufferedimage 图像
	  * @param degree      角度
	  * @return
	  * @date   2016-3-30下午3:10:27
	  */
	 public static BufferedImage rotateImage(final BufferedImage bufferedimage,
	            final int degree) {
	        int w = bufferedimage.getWidth();
	        int h = bufferedimage.getHeight();
	        int type = bufferedimage.getColorModel().getTransparency();
	        BufferedImage img;
	        Graphics2D graphics2d;
	        (graphics2d = (img = new BufferedImage(w, h, type))
	                .createGraphics()).setRenderingHint(
	                RenderingHints.KEY_INTERPOLATION,
	                RenderingHints.VALUE_INTERPOLATION_BILINEAR);
	   //     graphics2d.setBackground(Color.white);
	        graphics2d.setPaint(Color.WHITE);
	        graphics2d.fillRect(0, 0, w, h);
	        graphics2d.rotate(Math.toRadians(degree), w / 2, h / 2);
	        graphics2d.drawImage(bufferedimage, 0, 0,Color.WHITE, null);
	        graphics2d.dispose();
	        return img;
	    }
	 public static boolean rotateImage(String srcImageFile, String result,
			 int degree){
		 try{
			 BufferedImage src = ImageIO.read(new File(srcImageFile)); // 读入文件
			 BufferedImage tag= rotateImage(src, degree);
			 
			 ImageIO.write(tag, "JPEG", new File(result));
			 
			 return true;
		 }catch (Exception e) {
			 // TODO: handle exception
			 return false;
		 }
	 }
	 
	 public static BufferedImage Rotate(Image src, int angel) {  
	        int src_width = src.getWidth(null);  
	        int src_height = src.getHeight(null); 
	      //  angel=angel>0?angel:(360-angel);
	        // calculate the new image size  
	        Rectangle rect_des = CalcRotatedSize(new Rectangle(new Dimension(  
	                src_width, src_height)), angel);  
	  
	        BufferedImage res = null;  
	        res = new BufferedImage(rect_des.width, rect_des.height,  
	                BufferedImage.TYPE_INT_RGB);  
	        Graphics2D g2 = res.createGraphics();  
	        g2.setPaint(Color.WHITE);
	        g2.fillRect(0, 0, rect_des.width,  rect_des.height);
	        // transform  
	        g2.translate((rect_des.width - src_width) / 2,  
	                (rect_des.height - src_height) / 2);  
	        g2.rotate(Math.toRadians(angel), src_width / 2, src_height / 2);  
	  
	        g2.drawImage(src, null, null);  
	        return res;  
	    }  
	  
	    public static Rectangle CalcRotatedSize(Rectangle src, int angel) {  
	        // if angel is greater than 90 degree, we need to do some conversion  
	        if (angel >= 90) {  
	            if(angel / 90 % 2 == 1){  
	                int temp = src.height;  
	                src.height = src.width;  
	                src.width = temp;  
	            }  
	            angel = angel % 90;  
	        }  
	  
	        double r = Math.sqrt(src.height * src.height + src.width * src.width) / 2;  
	        double len = 2 * Math.sin(Math.toRadians(angel) / 2) * r;  
	        double angel_alpha = (Math.PI - Math.toRadians(angel)) / 2;  
	        double angel_dalta_width = Math.atan((double) src.height / src.width);  
	        double angel_dalta_height = Math.atan((double) src.width / src.height);  
	  
	        int len_dalta_width = (int) (len * Math.cos(Math.PI - angel_alpha  
	                - angel_dalta_width));  
	        int len_dalta_height = (int) (len * Math.cos(Math.PI - angel_alpha  
	                - angel_dalta_height));  
	        int des_width = src.width + len_dalta_width * 2;  
	        int des_height = src.height + len_dalta_height * 2;  
	        return new java.awt.Rectangle(new Dimension(des_width, des_height));  
	    }
	    
	    public static boolean Rotate(String srcImageFile, String result,
	            int degree){
	    	try{
	    		degree=degree>0?degree:(360-degree);
	    		BufferedImage src = ImageIO.read(new File(srcImageFile));  
	            BufferedImage tag = Rotate(src, degree);
	            ImageIO.write(tag, "JPEG", new File(result));				 
				 return true;
	    	}catch (Exception e) {
				// TODO: handle exception
	    		e.printStackTrace();
	    		return false;
			}
	    }
	 
	 
	public static boolean cutAndRotateImage(String srcImageFile,String dest,int x,int y,int w,int h,int degree){
		try{
			BufferedImage src = ImageIO.read(new File(srcImageFile)); // 读入文件
			BufferedImage tag= Rotate(src, degree);
			 Iterator iterator = ImageIO.getImageReadersByFormatName("jpg");   
	         ImageReader reader = (ImageReader)iterator.next();   
	    //     InputStream in=new FileInputStream(tag); 
	         ByteArrayOutputStream bs = new ByteArrayOutputStream();  
	         ImageOutputStream ios = ImageIO.createImageOutputStream(bs);  
	         ImageIO.write(tag, "jpg", ios);
	         InputStream in=new  ByteArrayInputStream(bs.toByteArray());
	         ImageInputStream iis=ImageIO.createImageInputStream(in);
	         reader.setInput(iis, true);   
	         ImageReadParam param = reader.getDefaultReadParam(); 
	         x=(x>0?x:0);
	         y=(y>0?y:0);
	         Rectangle rect = new Rectangle(x, y, w,h);    
	         param.setSourceRegion(rect);   
	         BufferedImage bi = reader.read(0,param);     
	         ImageIO.write(bi, "jpg", new File(dest));  
			return true;
		}catch (Exception e) {
			// TODO: handle exception
			return false;
		}
	}
	    
	 /***
	  * 按照比例缩放
	  * @param srcImageFile
	  * @param result  
	  * @param scale 缩放比例
	  * @param flag 缩放选择:true 放大; false 缩小;
	  * @return
	  * @date   2016-3-30下午2:39:44
	  */
	 public  static boolean scale(String srcImageFile, String result,
	            int scale, boolean flag) {
	        try {
	        	File file = new File(srcImageFile);
	            BufferedImage src = ImageIO.read(file); // 读入文件
	             Iterator<ImageReader> readers = ImageIO.getImageReadersByFormatName("jpg");
	             ImageReader reader = (ImageReader) readers.next();
	             ImageInputStream iis = ImageIO.createImageInputStream(file);
	             reader.setInput(iis, true);
	            int width = reader.getWidth(0); // 得到源图宽
	            int height = reader.getHeight(0); // 得到源图长
	            if (flag) {// 放大
	                width = width * scale;
	                height = height * scale;
	            } else {// 缩小
	                width = width / scale;
	                height = height / scale;
	            }
	            Image image = src.getScaledInstance(width, height,
	                    Image.SCALE_DEFAULT);
	            BufferedImage tag = new BufferedImage(width, height,
	                    BufferedImage.TYPE_INT_RGB);
	            Graphics g = tag.getGraphics();
	            g.drawImage(image, 0, 0, null); // 绘制缩小后的图
	            g.dispose();
	            ImageIO.write(tag, "jpg", new File(result));// 输出到文件流
	            return true;
	        } catch (IOException e) {
	            e.printStackTrace();
	            return false;
	        }
	    }
	 /***
	  * 缩放图像,按照长宽缩放
	  * @param srcImageFile
	  * @param result
	  * @param height  变换后的高度
	  * @param width   变换后的长度
	  * @param bb      比例不对称时,是否补白,true 补白;false 不补白
	  * @return
	
	  * @date   2016-3-30下午2:44:37
	  */
	 public  static boolean scale2(String srcImageFile, String result, int height, int width, boolean bb) {
	        try {
	            double ratio = 0.0; // 缩放比例
	            File file = new File(srcImageFile);
	            BufferedImage bi = ImageIO.read(file); // 读入文件
	             Iterator<ImageReader> readers = ImageIO.getImageReadersByFormatName("jpg");
	             ImageReader reader = (ImageReader) readers.next();
	             ImageInputStream iis = ImageIO.createImageInputStream(file);
	             reader.setInput(iis, true);
	            int width1 = reader.getWidth(0); // 得到源图宽
	            int height1 = reader.getHeight(0); // 得到源图长
	            Image itemp = bi.getScaledInstance(width, height, bi.SCALE_SMOOTH);
	            // 计算比例
	            if ((height1 > height) || (width1 > width)) {
	                if (height1 > width1) {
	                    ratio = (new Integer(height)).doubleValue()
	                            / height1;
	                } else {
	                    ratio = (new Integer(width)).doubleValue() / width1;
	                }
	                AffineTransformOp op = new AffineTransformOp(AffineTransform
	                        .getScaleInstance(ratio, ratio), null);
	                itemp = op.filter(bi, null);
	            }
	            if (bb) {//补白
	                BufferedImage image = new BufferedImage(width, height,
	                        BufferedImage.TYPE_INT_RGB);
	                Graphics2D g = image.createGraphics();
	                g.setColor(Color.white);
	                g.fillRect(0, 0, width, height);
	                if (width == itemp.getWidth(null))
	                    g.drawImage(itemp, 0, (height - itemp.getHeight(null)) / 2,
	                            itemp.getWidth(null), itemp.getHeight(null),
	                            Color.white, null);
	                else
	                    g.drawImage(itemp, (width - itemp.getWidth(null)) / 2, 0,
	                            itemp.getWidth(null), itemp.getHeight(null),
	                            Color.white, null);
	                g.dispose();
	                itemp = image;
	            }
	            ImageIO.write((BufferedImage) itemp, "JPEG", new File(result));
	            return true;
	        } catch (IOException e) {
	            e.printStackTrace();
	            return false;
	        }
	    }
	 /***
	  * 转换图像格式
	  * @param srcImageFile 原图像地址
	  * @param formatName   转换类型
	  * @param destImageFile 转换后的地址
	  * @return
	  * @author roychenyi
	  * @date   2016-3-30下午2:49:15
	  */
	    public  static boolean convert(String srcImageFile, String formatName, String destImageFile) {
	        try {
	            File f = new File(srcImageFile);
	            f.canRead();
	            f.canWrite();
	            BufferedImage src = ImageIO.read(f);
	            ImageIO.write(src, formatName, new File(destImageFile));
	            return true;
	        } catch (Exception e) {
	            e.printStackTrace();
	            return false;
	        }
	    }
	    
	    /**
	     * 彩色转为黑白 
	     * @param srcImageFile 源图像地址
	     * @param destImageFile 目标图像地址
	     */
	    public final static void gray(String srcImageFile, String destImageFile) {
	        try {
	            BufferedImage src = ImageIO.read(new File(srcImageFile));
	            ColorSpace cs = ColorSpace.getInstance(ColorSpace.CS_GRAY);
	            ColorConvertOp op = new ColorConvertOp(cs, null);
	            src = op.filter(src, null);
	            ImageIO.write(src, "jpg", new File(destImageFile));
	        } catch (IOException e) {
	            e.printStackTrace();
	        }
	    }
	    
	    /**
	     * 给图片添加图片水印
	     * @param pressImg 水印图片
	     * @param srcImageFile 源图像地址
	     * @param destImageFile 目标图像地址
	     * @param x 修正值。 默认在中间
	     * @param y 修正值。 默认在中间
	     * @param alpha 透明度:alpha 必须是范围 [0.0, 1.0] 之内(包含边界值)的一个浮点数字
	     */
	    public  static boolean pressImage(String pressImg, String srcImageFile,String destImageFile,
	            int x, int y, float alpha) {
	        try {
	        	File file = new File(srcImageFile);
	            BufferedImage src = ImageIO.read(file); // 读入文件
	             Iterator<ImageReader> readers = ImageIO.getImageReadersByFormatName("jpg");
	             ImageReader reader = (ImageReader) readers.next();
	             ImageInputStream iis = ImageIO.createImageInputStream(file);
	             reader.setInput(iis, true);
	            int width = reader.getWidth(0); // 得到源图宽
	            int height = reader.getHeight(0); // 得到源图长
	            BufferedImage image = new BufferedImage(width, height,
	                    BufferedImage.TYPE_INT_RGB);
	            Graphics2D g = image.createGraphics();
	            g.drawImage(src, 0, 0, width, height, null);
	            // 水印文件
	            Image src_biao = ImageIO.read(new File(pressImg));
	            int wideth_biao = src_biao.getWidth(null);
	            int height_biao = src_biao.getHeight(null);
	            g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_ATOP,
	                    alpha));
	            g.drawImage(src_biao, (width-wideth_biao-x) ,
	                    (height-height_biao-y) , wideth_biao, height_biao, null);
	            // 水印文件结束
	            g.dispose();
	            ImageIO.write((BufferedImage) image,  "jpg", new File(destImageFile));
	            return true;
	        } catch (Exception e) {
	            e.printStackTrace();
	            return false;
	        }
	    }
	    
	    /**
	     * 给图片添加文字水印
	     * @param pressText 水印文字
	     * @param srcImageFile 源图像地址
	     * @param destImageFile 目标图像地址
	     * @param fontName 水印的字体名称
	     * @param fontStyle 水印的字体样式
	     * @param color 水印的字体颜色
	     * @param fontSize 水印的字体大小
	     * @param x 修正值
	     * @param y 修正值
	     * @param alpha 透明度:alpha 必须是范围 [0.0, 1.0] 之内(包含边界值)的一个浮点数字
	     */
	    public  static boolean pressText(String pressText,
	            String srcImageFile, String destImageFile, String fontName,
	            int fontStyle, Color color, int fontSize,int x,
	            int y, float alpha) {
	        try {
	        	File file = new File(srcImageFile);
	            BufferedImage src = ImageIO.read(file); // 读入文件
	             Iterator<ImageReader> readers = ImageIO.getImageReadersByFormatName("jpg");
	             ImageReader reader = (ImageReader) readers.next();
	             ImageInputStream iis = ImageIO.createImageInputStream(file);
	             reader.setInput(iis, true);
	            int width = reader.getWidth(0); // 得到源图宽
	            int height = reader.getHeight(0); // 得到源图长
	            BufferedImage image = new BufferedImage(width, height,
	                    BufferedImage.TYPE_INT_RGB);
	            Graphics2D g = image.createGraphics();
	            g.drawImage(src, 0, 0, width, height, null);
	            g.setColor(color);
	            g.setFont(new Font(fontName, fontStyle, fontSize));
	            g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_ATOP,
	                    alpha));
	            // 在指定坐标绘制水印文字
	            g.drawString(pressText, (width - (getLength(pressText) * fontSize))
	                    / 2 + x, (height - fontSize) / 2 + y);
	            g.dispose();
	            ImageIO.write(image, "jpg", new File(destImageFile));// 输出到文件流
	            return true;
	        } catch (Exception e) {
	            e.printStackTrace();
	            return false;
	        }
	    }
	    
	    /**
	     * 计算text的长度(一个中文算两个字符)
	     * @param text
	     * @return
	     */
	    public  static int getLength(String text) {
	        int length = 0;
	        for (int i = 0; i < text.length(); i++) {
	            if (new String(text.charAt(i) + "").getBytes().length > 1) {
	                length += 2;
	            } else {
	                length += 1;
	            }
	        }
	        return length / 2;
	    }
	    

     public static void main(String[] args) {
		String src="D:/0.jpg";
		/*		imageUtils.cutImage(src, "D://1cut.jpg", -10, 40, 100000, 560);
		imageUtils.rotateImage(src, "D:/2rotate.jpg", -30);
		imageUtils.rotateImage(src, "D:/2rotate1.png", 30);
		imageUtils.Rotate(src, "D://2rotate2.jpg", 330);
		imageUtils.Rotate(src,"D://2rotate21.jpg",30);
		imageUtils.cutAndRotateImage(src, "D://9cutRotate1.jpg", 244, 427, 614, 614, 0);
		imageUtils.scale(src, "D://3scale1.jpg", 3, false);
		imageUtils.scale2(src, "D://4scale2.jpg", 780,560, false);
		imageUtils.convert(src, "png", "D://5convert.png");
		imageUtils.gray(src,"D://6gray.jpg");
		imageUtils.pressImage("D://3scale1.jpg", src, "D://7pressImage.jpg", 100, 100, 0.9f);
		imageUtils.pressText("图片1414", src, "D://8pressText.jpg", "宋体", Font.BOLD, Color.black, 80, 10, 10,0.6f);
*/
		 imageUtils util = new imageUtils();
	        util.getImageSizeByImageReader(src);
	        util.getImageSizeByBufferedImage(src);
	        System.out.println(getImageHeight(src));
	        imageUtils.Rotate("E:\\apache-tomcat-7.0.59\\webapps\\wxs\\upload\\image\\1\\2016\\3\\30\\1459347622160.jpg","E:\\apache-tomcat-7.0.59\\webapps\\wxs\\upload/image/1/2016/3/30/1459347622160_s.jpg", 90);
	        imageUtils.Rotate("E:/apache-tomcat-7.0.59/webapps/wxs/upload/image/1/2016/3/30/1459349306443_s.jpg", "E:/apache-tomcat-7.0.59/webapps/wxs/upload/image/1/2016/3/30/1459349306443_s_200.jpg", 45);
	}
}

制作头像上传。请根据您的实际需求,修改代码,不完全正确,仅供参考!
前端页面设计使用bootstrap ,头像预览和剪裁工具使用cropper
后台使用springmvc。
现在来看前端的页面设计
前端页面设计,自然需要bootstrap 、jqury 和cropper ,这可以自行去网上百度查找
剪裁效果图
html 文件
<!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8">
    <title>cropper</title>
    <link href="css/bootstrap.css" rel="stylesheet"/>
    <link href="js/plugins/cropper/cropper.css" rel="stylesheet"/>
    <link href="css/style.css" rel="stylesheet"/>

</head>
<body>
<div class="container" id="crop-avatar">

    <!-- Current avatar -->
    <div style="text-align:center;color:red;margin:50px 0">提示:点击头像上传</div>
    <div class="avatar-view" title="Change the avatar">
        <img src="images/snow.jpg" alt="Avatar"/>
    </div>

    <!-- Cropping modal -->
    <div class="modal fade" id="avatar-modal" aria-hidden="true" aria-labelledby="avatar-modal-label" role="dialog" tabindex="-1">
        <div class="modal-dialog modal-lg">
            <div class="modal-content">
                <form class="avatar-form" action="crop.php" enctype="multipart/form-data" method="post">
                    <div class="modal-header">
                        <button class="close" data-dismiss="modal" type="button">×</button>
                        <h4 class="modal-title" id="avatar-modal-label">更换头像</h4>
                    </div>
                    <div class="modal-body">
                        <div class="avatar-body">

                            <!-- Upload image and data -->
                            <div class="avatar-upload">
                                <input class="avatar-src" name="avatar_src" type="hidden"/>
                                <input class="avatar-data" name="avatar_data" type="hidden"/>
                                <label for="avatarInput">头像上传</label>
                                <input class="avatar-input " id="avatarInput" name="avatar_file" type="file" accept="image/*"/>
                            </div>

                            <!-- Crop and preview -->
                            <div class="row">
                                <div class="col-md-9">
                                    <div class="avatar-wrapper"></div>
                                </div>
                                <div class="col-md-3">
                                    <!--<div class="avatar-preview preview-lg"></div>-->
                                    <div class="avatar-preview preview-md">
                                        <label>100*100</label>
                                    </div>
                                    <div class="avatar-preview preview-sm" title="50*50">
                                        <label>50*50</label>
                                    </div>
                                    <div class="avatar-preview preview-xs">
                                        <label>30*30</label>
                                    </div>
                                    <div class="input-group input-group-sm">
                                        <label class="input-group-addon" for="dataX">X</label>
                                        <input type="text" class="form-control" id="dataX" name="x" placeholder="x" >
                                        <span class="input-group-addon">px</span>
                                    </div>
                                    <div class="input-group input-group-sm">
                                        <label class="input-group-addon" for="dataY">Y</label>
                                        <input type="text" class="form-control" id="dataY" name="y" placeholder="y">
                                        <span class="input-group-addon">px</span>
                                    </div>
                                    <div class="input-group input-group-sm">
                                        <label class="input-group-addon" for="dataWidth">Width</label>
                                        <input type="text" class="form-control" id="dataWidth" name="width" placeholder="width">
                                        <span class="input-group-addon">px</span>
                                    </div>
                                    <div class="input-group input-group-sm">
                                        <label class="input-group-addon" for="dataHeight">Height</label>
                                        <input type="text" class="form-control" id="dataHeight" name="height" placeholder="height">
                                        <span class="input-group-addon">px</span>
                                    </div>
                                    <div class="input-group input-group-sm">
                                        <label class="input-group-addon" for="dataRotate">Rotate</label>
                                        <input type="text" class="form-control" id="dataRotate" placeholder="rotate">
                                        <span class="input-group-addon">deg</span>
                                    </div>
                                    <div class="input-group input-group-sm">
                                        <label class="input-group-addon" for="dataScaleX">ScaleX</label>
                                        <input type="text" class="form-control" id="dataScaleX" placeholder="scaleX">
                                    </div>
                                    <div class="input-group input-group-sm">
                                        <label class="input-group-addon" for="dataScaleY">ScaleY</label>
                                        <input type="text" class="form-control" id="dataScaleY" placeholder="scaleY">
                                    </div>
                                </div>
                            </div>

                            <div class="row avatar-btns">
                                <div class="col-md-9">
                                    <div class="btn-group">
                                        <button class="btn btn-primary" data-method="rotate" data-option="-90" type="button" title="Rotate -90 degrees">向左旋转</button>
                                        <button class="btn btn-primary" data-method="rotate" data-option="-15" type="button">-15deg</button>
                                        <button class="btn btn-primary" data-method="rotate" data-option="-30" type="button">-30deg</button>
                                        <button class="btn btn-primary" data-method="rotate" data-option="-45" type="button">-45deg</button>
                                    </div>
                                    <div class="btn-group">
                                        <button class="btn btn-primary" data-method="rotate" data-option="90" type="button" title="Rotate 90 degrees">向右旋转</button>
                                        <button class="btn btn-primary" data-method="rotate" data-option="15" type="button">15deg</button>
                                        <button class="btn btn-primary" data-method="rotate" data-option="30" type="button">30deg</button>
                                        <button class="btn btn-primary" data-method="rotate" data-option="45" type="button">45deg</button>
                                    </div>
                                </div>
                                <div class="col-md-3">
                                    <button class="btn btn-primary btn-block avatar-save" type="submit">确定</button>
                                </div>
                            </div>
                        </div>
                    </div>
                    <!-- <div class="modal-footer">
                      <button class="btn btn-default" data-dismiss="modal" type="button">Close</button>
                    </div> -->
                </form>
            </div>
        </div>
    </div><!-- /.modal -->

    <!-- Loading state -->
    <div class="loading" aria-label="Loading" role="img" tabindex="-1"></div>
</div>

<script src="js/jquery-2.1.4.min.js"></script>
<script src="js/bootstrap.min.js"></script>
<script src="js/plugins/cropper/cropper.min.js"></script>
<script src="js/cropper-tool.js"></script>
</body>
</html>

js处理文件如下
main,js
$(function () {

  'use strict';

  var console = window.console || { log: function () {} };
  var $image = $('#image');
  var $download = $('#download');
  var $dataX = $('#dataX');
  var $dataY = $('#dataY');
  var $dataHeight = $('#dataHeight');
  var $dataWidth = $('#dataWidth');
  var $dataRotate = $('#dataRotate');
  var $dataScaleX = $('#dataScaleX');
  var $dataScaleY = $('#dataScaleY');
  var options = {
        aspectRatio: 16 / 9,
        preview: '.img-preview',
        crop: function (e) {
          $dataX.val(Math.round(e.x));
          $dataY.val(Math.round(e.y));
          $dataHeight.val(Math.round(e.height));
          $dataWidth.val(Math.round(e.width));
          $dataRotate.val(e.rotate);
          $dataScaleX.val(e.scaleX);
          $dataScaleY.val(e.scaleY);
        }
      };


  // Tooltip
  $('[data-toggle="tooltip"]').tooltip();


  // Cropper
  $image.on({
    'build.cropper': function (e) {
      console.log(e.type);
    },
    'built.cropper': function (e) {
      console.log(e.type);
    },
    'cropstart.cropper': function (e) {
      console.log(e.type, e.action);
    },
    'cropmove.cropper': function (e) {
      console.log(e.type, e.action);
    },
    'cropend.cropper': function (e) {
      console.log(e.type, e.action);
    },
    'crop.cropper': function (e) {
      console.log(e.type, e.x, e.y, e.width, e.height, e.rotate, e.scaleX, e.scaleY);
    },
    'zoom.cropper': function (e) {
      console.log(e.type, e.ratio);
    }
  }).cropper(options);


  // Buttons
  if (!$.isFunction(document.createElement('canvas').getContext)) {
    $('button[data-method="getCroppedCanvas"]').prop('disabled', true);
  }

  if (typeof document.createElement('cropper').style.transition === 'undefined') {
    $('button[data-method="rotate"]').prop('disabled', true);
    $('button[data-method="scale"]').prop('disabled', true);
  }


  // Download
  if (typeof $download[0].download === 'undefined') {
    $download.addClass('disabled');
  }


  // Options
  $('.docs-toggles').on('change', 'input', function () {
    var $this = $(this);
    var name = $this.attr('name');
    var type = $this.prop('type');
    var cropBoxData;
    var canvasData;

    if (!$image.data('cropper')) {
      return;
    }

    if (type === 'checkbox') {
      options[name] = $this.prop('checked');
      cropBoxData = $image.cropper('getCropBoxData');
      canvasData = $image.cropper('getCanvasData');

      options.built = function () {
        $image.cropper('setCropBoxData', cropBoxData);
        $image.cropper('setCanvasData', canvasData);
      };
    } else if (type === 'radio') {
      options[name] = $this.val();
    }

    $image.cropper('destroy').cropper(options);
  });


  // Methods
  $('.docs-buttons').on('click', '[data-method]', function () {
    var $this = $(this);
    var data = $this.data();
    var $target;
    var result;

    if ($this.prop('disabled') || $this.hasClass('disabled')) {
      return;
    }

    if ($image.data('cropper') && data.method) {
      data = $.extend({}, data); // Clone a new one

      if (typeof data.target !== 'undefined') {
        $target = $(data.target);

        if (typeof data.option === 'undefined') {
          try {
            data.option = JSON.parse($target.val());
          } catch (e) {
            console.log(e.message);
          }
        }
      }

      result = $image.cropper(data.method, data.option, data.secondOption);

      switch (data.method) {
        case 'scaleX':
        case 'scaleY':
          $(this).data('option', -data.option);
          break;

        case 'getCroppedCanvas':
          if (result) {

            // Bootstrap's Modal
            $('#getCroppedCanvasModal').modal().find('.modal-body').html(result);

            if (!$download.hasClass('disabled')) {
              $download.attr('href', result.toDataURL('image/jpeg'));
            }
          }

          break;
      }

      if ($.isPlainObject(result) && $target) {
        try {
          $target.val(JSON.stringify(result));
        } catch (e) {
          console.log(e.message);
        }
      }

    }
  });


  // Keyboard
  $(document.body).on('keydown', function (e) {

    if (!$image.data('cropper') || this.scrollTop > 300) {
      return;
    }

    switch (e.which) {
      case 37:
        e.preventDefault();
        $image.cropper('move', -1, 0);
        break;

      case 38:
        e.preventDefault();
        $image.cropper('move', 0, -1);
        break;

      case 39:
        e.preventDefault();
        $image.cropper('move', 1, 0);
        break;

      case 40:
        e.preventDefault();
        $image.cropper('move', 0, 1);
        break;
    }

  });


  // Import image
  var $inputImage = $('#inputImage');
  var URL = window.URL || window.webkitURL;
  var blobURL;

  if (URL) {
    $inputImage.change(function () {
      var files = this.files;
      var file;

      if (!$image.data('cropper')) {
        return;
      }

      if (files && files.length) {
        file = files[0];

        if (/^image\/\w+$/.test(file.type)) {
          blobURL = URL.createObjectURL(file);
          $image.one('built.cropper', function () {

            // Revoke when load complete
            URL.revokeObjectURL(blobURL);
          }).cropper('reset').cropper('replace', blobURL);
          $inputImage.val('');
        } else {
          window.alert('Please choose an image file.');
        }
      }
    });
  } else {
    $inputImage.prop('disabled', true).parent().addClass('disabled');
  }

});

需要添加的css样式
style.css
.avatar-view {
    display: block;
    margin: 0 auto;
    height: 220px;
    width: 220px;
    border: 3px solid #fff;
    border-radius: 5px;
    box-shadow: 0 0 5px rgba(0,0,0,.15);
    cursor: pointer;
    overflow: hidden;
}

.avatar-view img {
    width: 100%;
}

.avatar-body {
    padding-right: 15px;
    padding-left: 15px;
}

.avatar-upload {
    overflow: hidden;
}

.avatar-upload label {
    display: block;
    float: left;
    clear: left;
    width: 100px;
}

.avatar-upload input {
    display: block;
    margin-left: 110px;
}

.avater-alert {
    margin-top: 10px;
    margin-bottom: 10px;
}

.avatar-wrapper {
    height: 364px;
    width: 100%;
    margin-top: 15px;
    box-shadow: inset 0 0 5px rgba(0,0,0,.25);
    background-color: #fcfcfc;
    overflow: hidden;
}

.avatar-wrapper img {
    display: block;
    height: auto;
    max-width: 100%;
}

.avatar-preview {
    float: left;
    margin-top: 15px;
    margin-right: 15px;
    border: 1px solid #eee;
    border-radius: 4px;
    background-color: #fff;
    overflow: hidden;
}

.avatar-preview:hover {
    border-color: #ccf;
    box-shadow: 0 0 5px rgba(0,0,0,.15);
}

.avatar-preview img {
    width: 100%;
}

.preview-lg {
    height: 200px;
    width: 200px;
    margin-top: 15px;
}

.preview-md {
    height: 100px;
    width: 100px;
}

.preview-sm {
    height: 50px;
    width: 50px;
}
.preview-xs{
    height:30px;
    width:30px;]
}

@media (min-width: 992px) {
    .avatar-preview {
        float: none;
    }
}

.avatar-btns {
    margin-top: 30px;
    margin-bottom: 15px;
}

.avatar-btns .btn-group {
    margin-right: 5px;
}

.loading {
    display: none;
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    background: #fff url("patterns/loading.gif") no-repeat center center;
    opacity: .75;
    filter: alpha(opacity=75);
    z-index: 20140628;
}

现在前端的基本完成。现在最重要的来了,就是后台java 处理了。在网上找过很多,发现没有,关于springmvc的,上面的内容基本上在网上找到,下面的springmvc的,关于图像处理的,就是我个人做的。好像网上有直接在前端进行剪裁的,可惜我不会啊,所以我还是老老实实的在后台处理了。

<strong>package com.cx.wxs.action.image;

import java.io.File;
import java.sql.Timestamp;
import java.util.Date;

import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.multipart.MultipartFile;

import com.cx.wxs.dto.BSiteDto;
import com.cx.wxs.dto.IAlbumDto;
import com.cx.wxs.dto.IImageDto;
import com.cx.wxs.dto.UUserDto;
import com.cx.wxs.service.BSiteService;
import com.cx.wxs.service.IImageService;
import com.cx.wxs.service.UUserService;
import com.cx.wxs.utils.DateUtils;
import com.cx.wxs.utils.clientInfo;
import com.cx.wxs.utils.imageUtils;

/**
 * @author roychenyi
 * @date   2016-3-29 下午9:22:01
 */
@Controller
@RequestMapping("/{vip}/image")
public class imageAction {

	@Resource
	private IImageService iImageService;
	@Resource
	private BSiteService bSiteService;
	@Resource
	private UUserService uUserService;

	/**
	 * @return the bSiteService
	 */
	public BSiteService getbSiteService() {
		return bSiteService;
	}

	/**
	 * @param bSiteService the bSiteService to set
	 */
	public void setbSiteService(BSiteService bSiteService) {
		this.bSiteService = bSiteService;
	}

	/**
	 * @return the uUserService
	 */
	public UUserService getuUserService() {
		return uUserService;
	}

	/**
	 * @param uUserService the uUserService to set
	 */
	public void setuUserService(UUserService uUserService) {
		this.uUserService = uUserService;
	}

	/**
	 * @return the iImageService
	 */
	public IImageService getiImageService() {
		return iImageService;
	}

	/**
	 * @param iImageService the iImageService to set
	 */
	public void setiImageService(IImageService iImageService) {
		this.iImageService = iImageService;
	}
	@RequestMapping(value="/updateuserlogo")
	@ResponseBody
	public IImageDto updateUserLogo( @PathVariable("vip") String vip,
			 Integer x, Integer y, Integer width, Integer height,Integer degree,
			@RequestParam(value = "avatar_file") MultipartFile imageFile, HttpServletRequest request,HttpServletResponse response){
		IImageDto imageDto=new IImageDto();
		//获取服务器的实际路径
 		String realPath = request.getSession().getServletContext().getRealPath("/");
	    System.out.println("x:"+x+"y:"+y+"width:"+width+"height:"+height+"degree:"+degree);
		System.out.println(realPath);
		//需要上传的路径,我的路径根据用户的和当前日期划分路径
		String resourcePath="upload/image";
		UUserDto userDto=(UUserDto) request.getSession().getAttribute("user");
		resourcePath+="/"+userDto.getUserId();
	
		 if(imageFile!=null){
			 try{
			//文件名
			 String name= imageFile.getOriginalFilename();
			 //获取时间的路径
			 Date date=new Date();			 
			 int year=DateUtils.getYear(date);
			 int month=DateUtils.getMonth(date);
			 int day=DateUtils.getDay(date);
			 resourcePath+="/"+year+"/"+month+"/"+day+"/";
			 File dir=new File(realPath+resourcePath);
			 if(!dir.exists()){
				 dir.mkdirs();
			 }
			 //先把用户上传到原图保存到服务器上
			 File file=new File(dir,date.getTime()+".jpg");
			 imageFile.transferTo(file);
			 if(file.exists()){
				 String src=realPath+resourcePath+date.getTime();
				 
				 boolean[] flag=new boolean[6];
				 //旋转后剪裁图片
				 flag[0]=imageUtils.cutAndRotateImage(src+".jpg", src+"_s.jpg", x, y, width, height, degree);
				 //缩放图片,生成不同大小的图片,应用于不同的大小的头像显示
				 flag[1]= imageUtils.scale2(src+"_s.jpg", src+"_s_200.jpg", 200, 200, true);
				 flag[2]= imageUtils.scale2(src+"_s.jpg", src+"_s_100.jpg", 100, 100, true);
				 flag[3]= imageUtils.scale2(src+"_s.jpg", src+"_s_50.jpg", 50, 50, true);
				 flag[4]= imageUtils.scale2(src+"_s.jpg", src+"_s_30.jpg", 30, 30, true);
				 flag[5]= imageUtils.scale2(file.getPath(), src+"_200.jpg", 200, 200, true);
				 
				 if(flag[0]&&flag[1]&&flag[2]&&flag[3]&&flag[4]&&flag[5]){
					 //图像处理完成,将数据写入数据库中
					 imageDto.setYear((short) year);
					 imageDto.setMount((short)month);
					 imageDto.setDay((short)day);
					 imageDto.setUUserDto(userDto);
					 imageDto.setName(date.getTime()+".jpg");
					 imageDto.setFileName(name);
					 imageDto.setUrl(resourcePath+"/"+date.getTime()+".jpg");
					 imageDto.setPreviewUrl(resourcePath+"/"+date.getTime()+"_200.jpg");
					 imageDto.setTime(new Timestamp(date.getTime()));
					 imageDto.setWidth((short)imageUtils.getImageWidth(file.getPath()));
					 imageDto.setHeight((short)imageUtils.getImageHeight(file.getPath()));
					 imageDto.setClientIp(clientInfo.getIpAddr(request));
					 imageDto.setClientAgent(clientInfo.getAgent(request));
					 imageDto.setClientType((short)(clientInfo.isMoblie(request)?1:0));
					 imageDto.setStatus((short)1);
					 imageDto.setExt3(resourcePath+"/"+date.getTime()+"_s_200.jpg");
					 imageDto.setExt4(resourcePath+"/"+date.getTime()+"_s_100.jpg");
					//设置相册,头像设置进入默认相册
					 IAlbumDto albumDto=new IAlbumDto();
					 albumDto.setAlbumId(1);
					 imageDto.setIAlbumDto(albumDto);
					 int id= iImageService.addIImage(imageDto);
					 if(id>0){
						 BSiteDto siteDto=userDto.getBSiteDto();
						 siteDto.setLogo(resourcePath+"/"+date.getTime()+"_s_100.jpg");
						 siteDto.setLastTime( new Timestamp(date.getTime()));
						 bSiteService.updateBSite(siteDto);
						 userDto.setPortrait(resourcePath+"/"+date.getTime()+"_s_30.jpg");
						 uUserService.updateUuser(userDto);
						 userDto=uUserService.getUuser(userDto);
						 imageDto.setLoginFlag("1");
						 return imageDto;
					 }
				 }
			 }
			 }catch (Exception e) {
				// TODO: handle exception
				 e.printStackTrace();
				 return imageDto;
			}

		 }
		return imageDto;
	}
}
</strong>


下面是图像处理的工具类。imageUtils.java.欢迎借鉴引用。(我也是在我网上找了很多进行参考的)
package com.cx.wxs.utils;

import java.awt.AlphaComposite;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Image;
import java.awt.Rectangle;
import java.awt.RenderingHints;
import java.awt.color.ColorSpace;
import java.awt.geom.AffineTransform;
import java.awt.image.AffineTransformOp;
import java.awt.image.BufferedImage;
import java.awt.image.ColorConvertOp;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.sql.Timestamp;
import java.util.Date;
import java.util.HashMap;
import java.util.Iterator;

import javax.imageio.ImageIO;
import javax.imageio.ImageReadParam;
import javax.imageio.ImageReader;
import javax.imageio.stream.ImageInputStream;
import javax.imageio.stream.ImageOutputStream;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import com.cx.wxs.dto.IImageDto;


/**
 * @author roychenyi
 * @date   2016-3-30 上午10:11:39
 */
public class imageUtils {
	private static Log log = LogFactory.getLog(imageUtils.class);
	

	/***
	 * 获取图片的类型
	 * @param o
	 * @return
	 * @date   2016-3-30下午4:59:36
	 */
	private static String getFormatName(Object o) {
        try {
            ImageInputStream iis = ImageIO.createImageInputStream(o);
            Iterator<ImageReader> iter = ImageIO.getImageReaders(iis);
            if (!iter.hasNext()) {
                return null;
            }
    
            ImageReader reader = iter.next();
            iis.close();
            return reader.getFormatName();
        } catch (IOException e) {
        }
        return null;
    }
	
	/**
     * 使用ImageReader获取图片尺寸
     * 
     * @param src
     *            源图片路径
     */
    public void getImageSizeByImageReader(String src) {
        long beginTime = new Date().getTime();
        File file = new File(src);
        try {
            Iterator<ImageReader> readers = ImageIO.getImageReadersByFormatName("jpg");
            ImageReader reader = (ImageReader) readers.next();
            ImageInputStream iis = ImageIO.createImageInputStream(file);
            reader.setInput(iis, true);
            System.out.println("width:" + reader.getWidth(0));
            System.out.println("height:" + reader.getHeight(0));
        } catch (IOException e) {
            e.printStackTrace();
        }
        long endTime = new Date().getTime();
        System.out.println("使用[ImageReader]获取图片尺寸耗时:[" + (endTime - beginTime)+"]ms");
    }

    /**
     * 使用BufferedImage获取图片尺寸
     * 
     * @param src
     *            源图片路径
     */
    public void getImageSizeByBufferedImage(String src) {
        long beginTime = new Date().getTime();
        File file = new File(src);
        FileInputStream is = null;
        try {
            is = new FileInputStream(file);
        } catch (FileNotFoundException e2) {
            e2.printStackTrace();
        }
        BufferedImage sourceImg = null;
        try {
            sourceImg = javax.imageio.ImageIO.read(is);
            System.out.println("width:" + sourceImg.getWidth());
            System.out.println("height:" + sourceImg.getHeight());
        } catch (IOException e1) {
            e1.printStackTrace();
        }
        long endTime = new Date().getTime();
        System.out.println("使用[BufferedImage]获取图片尺寸耗时:[" + (endTime - beginTime)+"]ms");
    }

    /***
     * 获取图片的宽
     * @param srcImageFile
     * @return
     * @date   2016-3-30下午9:01:08
     */
    public static int  getImageWidth(String srcImageFile){
         try {
        	 File file = new File(srcImageFile);
             Iterator<ImageReader> readers = ImageIO.getImageReadersByFormatName("jpg");
             ImageReader reader = (ImageReader) readers.next();
             ImageInputStream iis = ImageIO.createImageInputStream(file);
             reader.setInput(iis, true);
            
             return reader.getWidth(0);
         } catch (IOException e) {
             e.printStackTrace();
             return 0;
         }
    }
    /***
     * 获取文件的高
     * @param srcImageFile
     * @return
     * @date   2016-3-30下午9:02:19
     */
    public static int getImageHeight(String srcImageFile){
    	File file = new File(srcImageFile);
        try {
            Iterator<ImageReader> readers = ImageIO.getImageReadersByFormatName("jpg");
            ImageReader reader = (ImageReader) readers.next();
            ImageInputStream iis = ImageIO.createImageInputStream(file);
            reader.setInput(iis, true);
           
            return reader.getHeight(0);
        } catch (IOException e) {
            e.printStackTrace();
            return 0;
        }
    }
       
	/***
	 * 剪裁图片
	 * @param src
	 * @param dest
	 * @param x  起点横坐标
	 * @param y  纵坐标
	 * @param w  长
	 * @param h  高
	 * @throws IOException
	 * @date   2016-3-30下午12:19:10
	 */
	 public static boolean cutImage(String src,String dest,int x,int y,int w,int h) {   
         try{
		 Iterator iterator = ImageIO.getImageReadersByFormatName("jpg");   
         ImageReader reader = (ImageReader)iterator.next();   
         InputStream in=new FileInputStream(src);  
         ImageInputStream iis = ImageIO.createImageInputStream(in);   
         reader.setInput(iis, true);   
         ImageReadParam param = reader.getDefaultReadParam(); 
         x=(x>0?x:0);
         y=(y>0?y:0);
         Rectangle rect = new Rectangle(x, y, w,h);    
         param.setSourceRegion(rect);   
         BufferedImage bi = reader.read(0,param);     
         ImageIO.write(bi, "jpg", new File(dest));    
         return true;
         }catch (Exception e) {
			// TODO: handle exception
        	 e.printStackTrace();
        	 return false;
		}

  } 
	 /***
	  * 图片旋转指定角度
	  * @param bufferedimage 图像
	  * @param degree      角度
	  * @return
	  * @date   2016-3-30下午3:10:27
	  */
	 public static BufferedImage rotateImage(final BufferedImage bufferedimage,
	            final int degree) {
	        int w = bufferedimage.getWidth();
	        int h = bufferedimage.getHeight();
	        int type = bufferedimage.getColorModel().getTransparency();
	        BufferedImage img;
	        Graphics2D graphics2d;
	        (graphics2d = (img = new BufferedImage(w, h, type))
	                .createGraphics()).setRenderingHint(
	                RenderingHints.KEY_INTERPOLATION,
	                RenderingHints.VALUE_INTERPOLATION_BILINEAR);
	   //     graphics2d.setBackground(Color.white);
	        graphics2d.setPaint(Color.WHITE);
	        graphics2d.fillRect(0, 0, w, h);
	        graphics2d.rotate(Math.toRadians(degree), w / 2, h / 2);
	        graphics2d.drawImage(bufferedimage, 0, 0,Color.WHITE, null);
	        graphics2d.dispose();
	        return img;
	    }
	 public static boolean rotateImage(String srcImageFile, String result,
			 int degree){
		 try{
			 BufferedImage src = ImageIO.read(new File(srcImageFile)); // 读入文件
			 BufferedImage tag= rotateImage(src, degree);
			 
			 ImageIO.write(tag, "JPEG", new File(result));
			 
			 return true;
		 }catch (Exception e) {
			 // TODO: handle exception
			 return false;
		 }
	 }
	 
	 public static BufferedImage Rotate(Image src, int angel) {  
	        int src_width = src.getWidth(null);  
	        int src_height = src.getHeight(null); 
	      //  angel=angel>0?angel:(360-angel);
	        // calculate the new image size  
	        Rectangle rect_des = CalcRotatedSize(new Rectangle(new Dimension(  
	                src_width, src_height)), angel);  
	  
	        BufferedImage res = null;  
	        res = new BufferedImage(rect_des.width, rect_des.height,  
	                BufferedImage.TYPE_INT_RGB);  
	        Graphics2D g2 = res.createGraphics();  
	        g2.setPaint(Color.WHITE);
	        g2.fillRect(0, 0, rect_des.width,  rect_des.height);
	        // transform  
	        g2.translate((rect_des.width - src_width) / 2,  
	                (rect_des.height - src_height) / 2);  
	        g2.rotate(Math.toRadians(angel), src_width / 2, src_height / 2);  
	  
	        g2.drawImage(src, null, null);  
	        return res;  
	    }  
	  
	    public static Rectangle CalcRotatedSize(Rectangle src, int angel) {  
	        // if angel is greater than 90 degree, we need to do some conversion  
	        if (angel >= 90) {  
	            if(angel / 90 % 2 == 1){  
	                int temp = src.height;  
	                src.height = src.width;  
	                src.width = temp;  
	            }  
	            angel = angel % 90;  
	        }  
	  
	        double r = Math.sqrt(src.height * src.height + src.width * src.width) / 2;  
	        double len = 2 * Math.sin(Math.toRadians(angel) / 2) * r;  
	        double angel_alpha = (Math.PI - Math.toRadians(angel)) / 2;  
	        double angel_dalta_width = Math.atan((double) src.height / src.width);  
	        double angel_dalta_height = Math.atan((double) src.width / src.height);  
	  
	        int len_dalta_width = (int) (len * Math.cos(Math.PI - angel_alpha  
	                - angel_dalta_width));  
	        int len_dalta_height = (int) (len * Math.cos(Math.PI - angel_alpha  
	                - angel_dalta_height));  
	        int des_width = src.width + len_dalta_width * 2;  
	        int des_height = src.height + len_dalta_height * 2;  
	        return new java.awt.Rectangle(new Dimension(des_width, des_height));  
	    }
	    
	    public static boolean Rotate(String srcImageFile, String result,
	            int degree){
	    	try{
	    		degree=degree>0?degree:(360-degree);
	    		BufferedImage src = ImageIO.read(new File(srcImageFile));  
	            BufferedImage tag = Rotate(src, degree);
	            ImageIO.write(tag, "JPEG", new File(result));				 
				 return true;
	    	}catch (Exception e) {
				// TODO: handle exception
	    		e.printStackTrace();
	    		return false;
			}
	    }
	 
	 
	public static boolean cutAndRotateImage(String srcImageFile,String dest,int x,int y,int w,int h,int degree){
		try{
			BufferedImage src = ImageIO.read(new File(srcImageFile)); // 读入文件
			BufferedImage tag= Rotate(src, degree);
			 Iterator iterator = ImageIO.getImageReadersByFormatName("jpg");   
	         ImageReader reader = (ImageReader)iterator.next();   
	    //     InputStream in=new FileInputStream(tag); 
	         ByteArrayOutputStream bs = new ByteArrayOutputStream();  
	         ImageOutputStream ios = ImageIO.createImageOutputStream(bs);  
	         ImageIO.write(tag, "jpg", ios);
	         InputStream in=new  ByteArrayInputStream(bs.toByteArray());
	         ImageInputStream iis=ImageIO.createImageInputStream(in);
	         reader.setInput(iis, true);   
	         ImageReadParam param = reader.getDefaultReadParam(); 
	         x=(x>0?x:0);
	         y=(y>0?y:0);
	         Rectangle rect = new Rectangle(x, y, w,h);    
	         param.setSourceRegion(rect);   
	         BufferedImage bi = reader.read(0,param);     
	         ImageIO.write(bi, "jpg", new File(dest));  
			return true;
		}catch (Exception e) {
			// TODO: handle exception
			return false;
		}
	}
	    
	 /***
	  * 按照比例缩放
	  * @param srcImageFile
	  * @param result  
	  * @param scale 缩放比例
	  * @param flag 缩放选择:true 放大; false 缩小;
	  * @return
	  * @date   2016-3-30下午2:39:44
	  */
	 public  static boolean scale(String srcImageFile, String result,
	            int scale, boolean flag) {
	        try {
	        	File file = new File(srcImageFile);
	            BufferedImage src = ImageIO.read(file); // 读入文件
	             Iterator<ImageReader> readers = ImageIO.getImageReadersByFormatName("jpg");
	             ImageReader reader = (ImageReader) readers.next();
	             ImageInputStream iis = ImageIO.createImageInputStream(file);
	             reader.setInput(iis, true);
	            int width = reader.getWidth(0); // 得到源图宽
	            int height = reader.getHeight(0); // 得到源图长
	            if (flag) {// 放大
	                width = width * scale;
	                height = height * scale;
	            } else {// 缩小
	                width = width / scale;
	                height = height / scale;
	            }
	            Image image = src.getScaledInstance(width, height,
	                    Image.SCALE_DEFAULT);
	            BufferedImage tag = new BufferedImage(width, height,
	                    BufferedImage.TYPE_INT_RGB);
	            Graphics g = tag.getGraphics();
	            g.drawImage(image, 0, 0, null); // 绘制缩小后的图
	            g.dispose();
	            ImageIO.write(tag, "jpg", new File(result));// 输出到文件流
	            return true;
	        } catch (IOException e) {
	            e.printStackTrace();
	            return false;
	        }
	    }
	 /***
	  * 缩放图像,按照长宽缩放
	  * @param srcImageFile
	  * @param result
	  * @param height  变换后的高度
	  * @param width   变换后的长度
	  * @param bb      比例不对称时,是否补白,true 补白;false 不补白
	  * @return
	
	  * @date   2016-3-30下午2:44:37
	  */
	 public  static boolean scale2(String srcImageFile, String result, int height, int width, boolean bb) {
	        try {
	            double ratio = 0.0; // 缩放比例
	            File file = new File(srcImageFile);
	            BufferedImage bi = ImageIO.read(file); // 读入文件
	             Iterator<ImageReader> readers = ImageIO.getImageReadersByFormatName("jpg");
	             ImageReader reader = (ImageReader) readers.next();
	             ImageInputStream iis = ImageIO.createImageInputStream(file);
	             reader.setInput(iis, true);
	            int width1 = reader.getWidth(0); // 得到源图宽
	            int height1 = reader.getHeight(0); // 得到源图长
	            Image itemp = bi.getScaledInstance(width, height, bi.SCALE_SMOOTH);
	            // 计算比例
	            if ((height1 > height) || (width1 > width)) {
	                if (height1 > width1) {
	                    ratio = (new Integer(height)).doubleValue()
	                            / height1;
	                } else {
	                    ratio = (new Integer(width)).doubleValue() / width1;
	                }
	                AffineTransformOp op = new AffineTransformOp(AffineTransform
	                        .getScaleInstance(ratio, ratio), null);
	                itemp = op.filter(bi, null);
	            }
	            if (bb) {//补白
	                BufferedImage image = new BufferedImage(width, height,
	                        BufferedImage.TYPE_INT_RGB);
	                Graphics2D g = image.createGraphics();
	                g.setColor(Color.white);
	                g.fillRect(0, 0, width, height);
	                if (width == itemp.getWidth(null))
	                    g.drawImage(itemp, 0, (height - itemp.getHeight(null)) / 2,
	                            itemp.getWidth(null), itemp.getHeight(null),
	                            Color.white, null);
	                else
	                    g.drawImage(itemp, (width - itemp.getWidth(null)) / 2, 0,
	                            itemp.getWidth(null), itemp.getHeight(null),
	                            Color.white, null);
	                g.dispose();
	                itemp = image;
	            }
	            ImageIO.write((BufferedImage) itemp, "JPEG", new File(result));
	            return true;
	        } catch (IOException e) {
	            e.printStackTrace();
	            return false;
	        }
	    }
	 /***
	  * 转换图像格式
	  * @param srcImageFile 原图像地址
	  * @param formatName   转换类型
	  * @param destImageFile 转换后的地址
	  * @return
	  * @author roychenyi
	  * @date   2016-3-30下午2:49:15
	  */
	    public  static boolean convert(String srcImageFile, String formatName, String destImageFile) {
	        try {
	            File f = new File(srcImageFile);
	            f.canRead();
	            f.canWrite();
	            BufferedImage src = ImageIO.read(f);
	            ImageIO.write(src, formatName, new File(destImageFile));
	            return true;
	        } catch (Exception e) {
	            e.printStackTrace();
	            return false;
	        }
	    }
	    
	    /**
	     * 彩色转为黑白 
	     * @param srcImageFile 源图像地址
	     * @param destImageFile 目标图像地址
	     */
	    public final static void gray(String srcImageFile, String destImageFile) {
	        try {
	            BufferedImage src = ImageIO.read(new File(srcImageFile));
	            ColorSpace cs = ColorSpace.getInstance(ColorSpace.CS_GRAY);
	            ColorConvertOp op = new ColorConvertOp(cs, null);
	            src = op.filter(src, null);
	            ImageIO.write(src, "jpg", new File(destImageFile));
	        } catch (IOException e) {
	            e.printStackTrace();
	        }
	    }
	    
	    /**
	     * 给图片添加图片水印
	     * @param pressImg 水印图片
	     * @param srcImageFile 源图像地址
	     * @param destImageFile 目标图像地址
	     * @param x 修正值。 默认在中间
	     * @param y 修正值。 默认在中间
	     * @param alpha 透明度:alpha 必须是范围 [0.0, 1.0] 之内(包含边界值)的一个浮点数字
	     */
	    public  static boolean pressImage(String pressImg, String srcImageFile,String destImageFile,
	            int x, int y, float alpha) {
	        try {
	        	File file = new File(srcImageFile);
	            BufferedImage src = ImageIO.read(file); // 读入文件
	             Iterator<ImageReader> readers = ImageIO.getImageReadersByFormatName("jpg");
	             ImageReader reader = (ImageReader) readers.next();
	             ImageInputStream iis = ImageIO.createImageInputStream(file);
	             reader.setInput(iis, true);
	            int width = reader.getWidth(0); // 得到源图宽
	            int height = reader.getHeight(0); // 得到源图长
	            BufferedImage image = new BufferedImage(width, height,
	                    BufferedImage.TYPE_INT_RGB);
	            Graphics2D g = image.createGraphics();
	            g.drawImage(src, 0, 0, width, height, null);
	            // 水印文件
	            Image src_biao = ImageIO.read(new File(pressImg));
	            int wideth_biao = src_biao.getWidth(null);
	            int height_biao = src_biao.getHeight(null);
	            g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_ATOP,
	                    alpha));
	            g.drawImage(src_biao, (width-wideth_biao-x) ,
	                    (height-height_biao-y) , wideth_biao, height_biao, null);
	            // 水印文件结束
	            g.dispose();
	            ImageIO.write((BufferedImage) image,  "jpg", new File(destImageFile));
	            return true;
	        } catch (Exception e) {
	            e.printStackTrace();
	            return false;
	        }
	    }
	    
	    /**
	     * 给图片添加文字水印
	     * @param pressText 水印文字
	     * @param srcImageFile 源图像地址
	     * @param destImageFile 目标图像地址
	     * @param fontName 水印的字体名称
	     * @param fontStyle 水印的字体样式
	     * @param color 水印的字体颜色
	     * @param fontSize 水印的字体大小
	     * @param x 修正值
	     * @param y 修正值
	     * @param alpha 透明度:alpha 必须是范围 [0.0, 1.0] 之内(包含边界值)的一个浮点数字
	     */
	    public  static boolean pressText(String pressText,
	            String srcImageFile, String destImageFile, String fontName,
	            int fontStyle, Color color, int fontSize,int x,
	            int y, float alpha) {
	        try {
	        	File file = new File(srcImageFile);
	            BufferedImage src = ImageIO.read(file); // 读入文件
	             Iterator<ImageReader> readers = ImageIO.getImageReadersByFormatName("jpg");
	             ImageReader reader = (ImageReader) readers.next();
	             ImageInputStream iis = ImageIO.createImageInputStream(file);
	             reader.setInput(iis, true);
	            int width = reader.getWidth(0); // 得到源图宽
	            int height = reader.getHeight(0); // 得到源图长
	            BufferedImage image = new BufferedImage(width, height,
	                    BufferedImage.TYPE_INT_RGB);
	            Graphics2D g = image.createGraphics();
	            g.drawImage(src, 0, 0, width, height, null);
	            g.setColor(color);
	            g.setFont(new Font(fontName, fontStyle, fontSize));
	            g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_ATOP,
	                    alpha));
	            // 在指定坐标绘制水印文字
	            g.drawString(pressText, (width - (getLength(pressText) * fontSize))
	                    / 2 + x, (height - fontSize) / 2 + y);
	            g.dispose();
	            ImageIO.write(image, "jpg", new File(destImageFile));// 输出到文件流
	            return true;
	        } catch (Exception e) {
	            e.printStackTrace();
	            return false;
	        }
	    }
	    
	    /**
	     * 计算text的长度(一个中文算两个字符)
	     * @param text
	     * @return
	     */
	    public  static int getLength(String text) {
	        int length = 0;
	        for (int i = 0; i < text.length(); i++) {
	            if (new String(text.charAt(i) + "").getBytes().length > 1) {
	                length += 2;
	            } else {
	                length += 1;
	            }
	        }
	        return length / 2;
	    }
	    

     public static void main(String[] args) {
		String src="D:/0.jpg";
		/*		imageUtils.cutImage(src, "D://1cut.jpg", -10, 40, 100000, 560);
		imageUtils.rotateImage(src, "D:/2rotate.jpg", -30);
		imageUtils.rotateImage(src, "D:/2rotate1.png", 30);
		imageUtils.Rotate(src, "D://2rotate2.jpg", 330);
		imageUtils.Rotate(src,"D://2rotate21.jpg",30);
		imageUtils.cutAndRotateImage(src, "D://9cutRotate1.jpg", 244, 427, 614, 614, 0);
		imageUtils.scale(src, "D://3scale1.jpg", 3, false);
		imageUtils.scale2(src, "D://4scale2.jpg", 780,560, false);
		imageUtils.convert(src, "png", "D://5convert.png");
		imageUtils.gray(src,"D://6gray.jpg");
		imageUtils.pressImage("D://3scale1.jpg", src, "D://7pressImage.jpg", 100, 100, 0.9f);
		imageUtils.pressText("图片1414", src, "D://8pressText.jpg", "宋体", Font.BOLD, Color.black, 80, 10, 10,0.6f);
*/
		 imageUtils util = new imageUtils();
	        util.getImageSizeByImageReader(src);
	        util.getImageSizeByBufferedImage(src);
	        System.out.println(getImageHeight(src));
	        imageUtils.Rotate("E:\\apache-tomcat-7.0.59\\webapps\\wxs\\upload\\image\\1\\2016\\3\\30\\1459347622160.jpg","E:\\apache-tomcat-7.0.59\\webapps\\wxs\\upload/image/1/2016/3/30/1459347622160_s.jpg", 90);
	        imageUtils.Rotate("E:/apache-tomcat-7.0.59/webapps/wxs/upload/image/1/2016/3/30/1459349306443_s.jpg", "E:/apache-tomcat-7.0.59/webapps/wxs/upload/image/1/2016/3/30/1459349306443_s_200.jpg", 45);
	}
}

上一篇文章      下一篇文章      查看所有文章
2016-04-01 16:48:17  
360图书馆 论文大全 母婴/育儿 软件开发资料 网页快照 文字转语音 购物精选 软件 美食菜谱 新闻中心 电影下载 小游戏 Chinese Culture
生肖星座解梦 三沣玩客 拍拍 视频 开发 Android开发 站长 古典小说 网文精选 搜图网 天下美图 中国文化英文 多播视频 装修知识库
2017-1-23 14:36:09
多播视频美女直播
↓电视,电影,美女直播,迅雷资源↓
TxT小说阅读器
↓语音阅读,小说下载,古典文学↓
一键清除垃圾
↓轻轻一点,清除系统垃圾↓
图片批量下载器
↓批量下载图片,美女图库↓
  网站联系: qq:121756557 email:121756557@qq.com  软件世界网 --