webuploader 实现图片批量上传

1、导入资源

2、JSP代码

     <div class="page-container">
         <div class="row cl">
             <label class="form-label col-xs-4 col-sm-2"><span
                 class="c-red">*</span>项目名称：</label>
             <div class="formControls col-xs-8 col-sm-9">
                 <input type="text" class="input-text" value="${proName }"
                     placeholder="" id="" name="proName" readonly="readonly">
             </div>
         </div>
         <div class="row cl">
             <label class="form-label col-xs-4 col-sm-2">缩略图：</label>
             <div class="formControls col-xs-8 col-sm-9">
                 <div class="uploader-thum-container">
                     <div id="fileList" class="uploader-list"></div>
                     <div id="filePicker">选择图片</div>
                     <button id="btn-star"
                         class="btn btn-default btn-uploadstar radius ml-10">开始上传</button>
                 </div>
             </div>
         </div>
         <div class="row cl">
             <label class="form-label col-xs-4 col-sm-2"><span
                 class="c-red">*</span>项目发票上传：</label>
             <div class="formControls col-xs-8 col-sm-9">
                 <div class="uploader-list-container">
                     <div class="queueList">
                         <div id="dndArea" class="placeholder">
                             <div id="filePicker-2"></div>
                             <p>或将照片拖到这里，单次最多可选300张</p>
                         </div>
                     </div>
                     <div class="statusBar" style="display:none;">
                         <div class="progress">
                             <span class="text">0%</span> <span class="percentage"></span>
                         </div>
                         <div class="info"></div>
                         <div class="btns">
                             <div id="filePicker2"></div>
                             <div class="uploadBtn">开始上传</div>
                         </div>
                     </div>
                 </div>
             </div>
         </div>
         <div class="row cl">
             <div class="col-xs-8 col-sm-9 col-xs-offset-4 col-sm-offset-2">
                 <button
                     onClick="article_add('','invoiceVo/save?&projectId=${projectId}&invoiceScan=','10001');"
                     class="btn btn-primary radius" type="button">
                     <i class="Hui-iconfont"></i> &nbsp;&nbsp;保存&nbsp;&nbsp;
                 </button>
             </div>
         </div>
     </div>

3、Js代码

 <script type="text/javascript">
     var  imagePath=null; 

         function article_save() {
             alert("刷新父级的时候会自动关闭弹层。");
             window.parent.location.reload();
         }

         /*项目发票-添加*/
         function article_add(title, url, w, h) {
         if(imagePath){
             var index = layer.open({
                 type : 2,
                 title : title,
                 content : url+imagePath
             });
             layer.full(index);
         }else{alert("没有上传图片，请先上传图片");}
         }

         $(function() {
             $('.skin-minimal input').iCheck({
                 checkboxClass : 'icheckbox-blue',
                 radioClass : 'iradio-blue',
                 increaseArea : '20%'
             });

             $list = $("#fileList"), $btn = $("#btn-star"), state = "pending",
                     uploader;

             var uploader = WebUploader.create({
                 auto : true,
                 swf : 'lib/webuploader/0.1.5/Uploader.swf',// swf文件路径

                 // 文件接收服务端。
                 server : 'lib/webuploader/0.1.5/server/fileupload.php', // 文件接收服务端。

                 // 选择文件的按钮。可选。
                 // 内部根据当前运行是创建，可能是input元素，也可能是flash.
                 pick : '#filePicker',

                 // 不压缩image, 默认如果是jpeg，文件上传前会压缩一把再上传！
                 resize : false,
                 // 只允许选择图片文件。
                 accept : {
                     title : 'Images',
                     extensions : 'gif,jpg,jpeg,bmp,png',
                     mimeTypes : 'image/*'
                 }
             });
             // 当有文件被添加进队列的时候
             uploader
                     .on(
                             'fileQueued',
                             function(file) {
                                 var $li = $('<div id="' + file.id + '" class="item">'
                                         + '<div class="pic-box"><img></div>'
                                         + '<div class="info">'
                                         + file.name
                                         + '</div>'
                                         + '<p class="state">等待上传...</p>'
                                         + '</div>'), $img = $li.find('img');
                                 $list.append($li);

                                 // 创建缩略图
                                 // 如果为非图片文件，可以不用调用此方法。
                                 // thumbnailWidth x thumbnailHeight 为 100 x 100
                                 uploader.makeThumb(file, function(error, src) {
                                     if (error) {
                                         $img.replaceWith('<span>不能预览</span>');
                                         return;
                                     }

                                     $img.attr('src', src);
                                 }, thumbnailWidth, thumbnailHeight);
                             });
             // 文件上传过程中创建进度条实时显示。
             uploader
                     .on(
                             'uploadProgress',
                             function(file, percentage) {
                                 var $li = $('#' + file.id), $percent = $li
                                         .find('.progress-box .sr-only');

                                 // 避免重复创建
                                 if (!$percent.length) {
                                     $percent = $(
                                             '<div class="progress-box"><span class="progress-bar radius"><span class="sr-only" style="width:0%"></span></span></div>')
                                             .appendTo($li).find('.sr-only');
                                 }
                                 $li.find(".state").text("上传中");
                                 $percent.css('width', percentage * 100 + '%');
                             });

             // 文件上传成功，给item添加成功class, 用样式标记上传成功。
             uploader.on('uploadSuccess', function(file) {
                 $('#' + file.id).addClass('upload-state-success')
                         .find(".state").text("已上传");
             });

             // 文件上传失败，显示上传出错。
             uploader.on('uploadError', function(file) {
                 $('#' + file.id).addClass('upload-state-error').find(".state")
                         .text("上传出错");
             });

             // 完成上传完了，成功或者失败，先删除进度条。
             uploader.on('uploadComplete', function(file) {
                 $('#' + file.id).find('.progress-box').fadeOut();
             });
             uploader.on('all', function(type) {
                 if (type === 'startUpload') {
                     state = 'uploading';
                 } else if (type === 'stopUpload') {
                     state = 'paused';
                 } else if (type === 'uploadFinished') {
                     state = 'done';
                 }

                 if (state === 'uploading') {
                     $btn.text('暂停上传');
                 } else {
                     $btn.text('开始上传');
                 }
             });

             $btn.on('click', function() {
                 if (state === 'uploading') {
                     uploader.stop();
                 } else {
                     uploader.upload();
                 }
             });

         });

         (function($) {
             // 当domReady的时候开始初始化
             $(function() {
                 var $wrap = $('.uploader-list-container'),

                 // 图片容器
                 $queue = $('<ul class="filelist"></ul>').appendTo(
                         $wrap.find('.queueList')),

                 // 状态栏，包括进度和控制按钮
                 $statusBar = $wrap.find('.statusBar'),

                 // 文件总体选择信息。
                 $info = $statusBar.find('.info'),

                 // 上传按钮
                 $upload = $wrap.find('.uploadBtn'),

                 // 没选择文件之前的内容。
                 $placeHolder = $wrap.find('.placeholder'),

                 $progress = $statusBar.find('.progress').hide(),

                 // 添加的文件数量
                 fileCount = 0,

                 // 添加的文件总大小
                 fileSize = 0,

                 // 优化retina, 在retina下这个值是2
                 ratio = window.devicePixelRatio || 1,

                 // 缩略图大小
                 thumbnailWidth = 110 * ratio, thumbnailHeight = 110 * ratio,

                 // 可能有pedding, ready, uploading, confirm, done.
                 state = 'pedding',

                 // 所有文件的进度信息，key为file id
                 percentages = {},
                 // 判断浏览器是否支持图片的base64
                 isSupportBase64 = (function() {
                     var data = new Image();
                     var support = true;
                     data.onload = data.onerror = function() {
                         if (this.width != 1 || this.height != 1) {
                             support = false;
                         }
                     }
                     data.src = "data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///ywAAAAAAQABAAACAUwAOw==";
                     return support;
                 })(),

                 // 检测是否已经安装flash，检测flash的版本
                 flashVersion = (function() {
                     var version;

                     try {
                         version = navigator.plugins['Shockwave Flash'];
                         version = version.description;
                     } catch (ex) {
                         try {
                             version = new ActiveXObject(
                                     'ShockwaveFlash.ShockwaveFlash')
                                     .GetVariable('$version');
                         } catch (ex2) {
                             version = '0.0';
                         }
                     }
                     version = version.match(/\d+/g);
                     return parseFloat(version[0] + '.' + version[1], 10);
                 })(),

                 supportTransition = (function() {
                     var s = document.createElement('p').style, r = 'transition' in s
                             || 'WebkitTransition' in s
                             || 'MozTransition' in s
                             || 'msTransition' in s || 'OTransition' in s;
                     s = null;
                     return r;
                 })(),

                 // WebUploader实例
                 uploader;

                 if (!WebUploader.Uploader.support('flash')
                         && WebUploader.browser.ie) {

                     // flash 安装了但是版本过低。
                     if (flashVersion) {
                         (function(container) {
                             window['expressinstallcallback'] = function(state) {
                                 switch (state) {
                                 case 'Download.Cancelled':
                                     alert('您取消了更新！')
                                     break;

                                 case 'Download.Failed':
                                     alert('安装失败')
                                     break;

                                 default:
                                     alert('安装已成功，请刷新！');
                                     break;
                                 }
                                 delete window['expressinstallcallback'];
                             };

                             var swf = 'expressInstall.swf';
                             // insert flash object
                             var html = '<object type="application/'
                                     + 'x-shockwave-flash" data="' + swf + '" ';

                             if (WebUploader.browser.ie) {
                                 html += 'classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" ';
                             }

                             html += 'width="100%" height="100%" style="outline:0">'
                                     + '<param name="movie" value="' + swf + '" />'
                                     + '<param name="wmode" value="transparent" />'
                                     + '<param name="allowscriptaccess" value="always" />'
                                     + '</object>';

                             container.html(html);

                         })($wrap);

                         // 压根就没有安转。
                     } else {
                         $wrap
                                 .html('<a href="http://www.adobe.com/go/getflashplayer" target="_blank" border="0"><img alt="get flash player" src="http://www.adobe.com/macromedia/style_guide/images/160x41_Get_Flash_Player.jpg" /></a>');
                     }

                     return;
                 } else if (!WebUploader.Uploader.support()) {
                     alert('Web Uploader 不支持您的浏览器！');
                     return;
                 }

                 // 实例化
                 uploader = WebUploader.create({
                     pick : {
                         id : '#filePicker-2',
                         label : '点击选择图片'
                     },
                     formData : {
                         uid : 123
                     },
                     dnd : '#dndArea',
                     paste : '#uploader',
                     swf : 'lib/webuploader/0.1.5/Uploader.swf',
                     chunked : false,
                     chunkSize : 512 * 1024,
                     server : 'invoiceVo/news_uploder?&projectId=${projectId}',
                     // runtimeOrder: 'flash',

                     // accept: {
                     //     title: 'Images',
                     //     extensions: 'gif,jpg,jpeg,bmp,png',
                     //     mimeTypes: 'image/*'
                     // },

                     // 禁掉全局的拖拽功能。这样不会出现图片拖进页面的时候，把图片打开。
                     disableGlobalDnd : true,
                     fileNumLimit : 300,
                     fileSizeLimit : 200 * 1024 * 1024, // 200 M
                     fileSingleSizeLimit : 50 * 1024 * 1024
                 // 50 M
                 });

                 // 拖拽时不接受 js, txt 文件。
                 uploader.on('dndAccept', function(items) {
                     var denied = false, len = items.length, i = 0,
                     // 修改js类型
                     unAllowed = 'text/plain;application/javascript ';

                     for (; i < len; i++) {
                         // 如果在列表里面
                         if (~unAllowed.indexOf(items[i].type)) {
                             denied = true;
                             break;
                         }
                     }

                     return !denied;
                 });

                 uploader.on('dialogOpen', function() {
                     console.log('here');
                 });

                 // uploader.on('filesQueued', function() {
                 //     uploader.sort(function( a, b ) {
                 //         if ( a.name < b.name )
                 //           return -1;
                 //         if ( a.name > b.name )
                 //           return 1;
                 //         return 0;
                 //     });
                 // });

                 // 添加“添加文件”的按钮，
 /*                 uploader.addButton({
                     id : '#filePicker2',
                     label : '继续添加'
                 }); */

                 uploader.on('ready', function() {
                     window.uploader = uploader;
                 });

                 // 当有文件添加进来时执行，负责view的创建
                 function addFile(file) {
                     var $li = $('<li id="' + file.id + '">'
                             + '<p class="title">' + file.name + '</p>'
                             + '<p class="imgWrap"></p>'
                             + '<p class="progress"><span></span></p>' + '</li>'),

                     $btns = $(
                             '<div class="file-panel">'
                                     + '<span class="cancel">删除</span>'
                                     + '<span class="rotateRight">向右旋转</span>'
                                     + '<span class="rotateLeft">向左旋转</span></div>')
                             .appendTo($li), $prgress = $li
                             .find('p.progress span'), $wrap = $li
                             .find('p.imgWrap'), $info = $('<p class="error"></p>'),

                     showError = function(code) {
                         switch (code) {
                         case 'exceed_size':
                             text = '文件大小超出';
                             break;

                         case 'interrupt':
                             text = '上传暂停';
                             break;

                         default:
                             text = '上传失败，请重试';
                             break;
                         }

                         $info.text(text).appendTo($li);
                     };

                     if (file.getStatus() === 'invalid') {
                         showError(file.statusText);
                     } else {
                         // @todo lazyload
                         $wrap.text('预览中');
                         uploader
                                 .makeThumb(
                                         file,
                                         function(error, src) {
                                             var img;

                                             if (error) {
                                                 $wrap.text('不能预览');
                                                 return;
                                             }

                                             if (isSupportBase64) {
                                                 img = $('<img src="'+src+'">');
                                                 $wrap.empty().append(img);
                                             } else {
                                                 $
                                                         .ajax(
                                                                 'lib/webuploader/0.1.5/server/preview.php',
                                                                 {
                                                                     method : 'POST',
                                                                     data : src,
                                                                     dataType : 'json'
                                                                 })
                                                         .done(
                                                                 function(
                                                                         response) {
                                                                     if (response.result) {
                                                                         img = $('<img src="'+response.result+'">');
                                                                         $wrap
                                                                                 .empty()
                                                                                 .append(
                                                                                         img);
                                                                     } else {
                                                                         $wrap
                                                                                 .text("预览出错");
                                                                     }
                                                                 });
                                             }
                                         }, thumbnailWidth, thumbnailHeight);

                         percentages[file.id] = [ file.size, 0 ];
                         file.rotation = 0;
                     }

                     file.on('statuschange', function(cur, prev) {
                         if (prev === 'progress') {
                             $prgress.hide().width(0);
                         } else if (prev === 'queued') {
                             $li.off('mouseenter mouseleave');
                             $btns.remove();
                         }

                         // 成功
                         if (cur === 'error' || cur === 'invalid') {
                             console.log(file.statusText);
                             showError(file.statusText);
                             percentages[file.id][1] = 1;
                         } else if (cur === 'interrupt') {
                             showError('interrupt');
                         } else if (cur === 'queued') {
                             percentages[file.id][1] = 0;
                         } else if (cur === 'progress') {
                             $info.remove();
                             $prgress.css('display', 'block');
                         } else if (cur === 'complete') {
                             $li.append('<span class="success"></span>');
                         }

                         $li.removeClass('state-' + prev).addClass(
                                 'state-' + cur);
                     });

                     $li.on('mouseenter', function() {
                         $btns.stop().animate({
                             height : 30
                         });
                     });

                     $li.on('mouseleave', function() {
                         $btns.stop().animate({
                             height : 0
                         });
                     });

                     $btns
                             .on(
                                     'click',
                                     'span',
                                     function() {
                                         var index = $(this).index(), deg;

                                         switch (index) {
                                         case 0:
                                             uploader.removeFile(file);
                                             return;

                                         case 1:
                                             file.rotation += 90;
                                             break;

                                         case 2:
                                             file.rotation -= 90;
                                             break;
                                         }

                                         if (supportTransition) {
                                             deg = 'rotate(' + file.rotation
                                                     + 'deg)';
                                             $wrap.css({
                                                 '-webkit-transform' : deg,
                                                 '-mos-transform' : deg,
                                                 '-o-transform' : deg,
                                                 'transform' : deg
                                             });
                                         } else {
                                             $wrap
                                                     .css(
                                                             'filter',
                                                             'progid:DXImageTransform.Microsoft.BasicImage(rotation='
                                                                     + (~~((file.rotation / 90) % 4 + 4) % 4)
                                                                     + ')');

                                         }

                                     });

                     $li.appendTo($queue);
                 }

                 // 负责view的销毁
                 function removeFile(file) {
                     var $li = $('#' + file.id);

                     delete percentages[file.id];
                     updateTotalProgress();
                     $li.off().find('.file-panel').off().end().remove();
                 }

                 function updateTotalProgress() {
                     var loaded = 0, total = 0, spans = $progress.children(), percent;

                     $.each(percentages, function(k, v) {
                         total += v[0];
                         loaded += v[0] * v[1];
                     });

                     percent = total ? loaded / total : 0;

                     spans.eq(0).text(Math.round(percent * 100) + '%');
                     spans.eq(1).css('width', Math.round(percent * 100) + '%');
                     updateStatus();
                 }

                 function updateStatus() {
                     var text = '', stats;

                     if (state === 'ready') {
                         text = '选中' + fileCount + '张图片，共'
                                 + WebUploader.formatSize(fileSize) + '。';
                     } else if (state === 'confirm') {
                         stats = uploader.getStats();
                         if (stats.uploadFailNum) {
                             text = '已成功上传'
                                     + stats.successNum
                                     + '张照片至XX相册，'
                                     + stats.uploadFailNum
                                     + '张照片上传失败，<a class="retry" href="#">重新上传</a>失败图片或<a class="ignore" href="#">忽略</a>'
                         }

                     } else {
                         stats = uploader.getStats();
                         text = '共' + fileCount + '张（'
                                 + WebUploader.formatSize(fileSize) + '），已上传'
                                 + stats.successNum + '张';

                         if (stats.uploadFailNum) {
                             text += '，失败' + stats.uploadFailNum + '张';
                         }
                     }

                     $info.html(text);
                 }

                 function setState(val) {
                     var file, stats;

                     if (val === state) {
                         return;
                     }

                     $upload.removeClass('state-' + state);
                     $upload.addClass('state-' + val);
                     state = val;

                     switch (state) {
                     case 'pedding':
                         $placeHolder.removeClass('element-invisible');
                         $queue.hide();
                         $statusBar.addClass('element-invisible');
                         uploader.refresh();
                         break;

                     case 'ready':
                         $placeHolder.addClass('element-invisible');
                         $('#filePicker2').removeClass('element-invisible');
                         $queue.show();
                         $statusBar.removeClass('element-invisible');
                         uploader.refresh();
                         break;

                     case 'uploading':
                         $('#filePicker2').addClass('element-invisible');
                         $progress.show();
                         $upload.text('暂停上传');
                         break;

                     case 'paused':
                         $progress.show();
                         $upload.text('继续上传');
                         break;

                     case 'confirm':
                         $progress.hide();
                         $('#filePicker2').removeClass('element-invisible');
                         $upload.text('开始上传');

                         stats = uploader.getStats();
                         if (stats.successNum && !stats.uploadFailNum) {
                             setState('finish');
                             return;
                         }
                         break;
                     case 'finish':
                         stats = uploader.getStats();
                         if (stats.successNum) {
                             alert('上传成功');

                         } else {
                             // 没有成功的图片，重设
                             state = 'done';
                             location.reload();
                         }
                         break;
                     }

                     updateStatus();
                 }

                 uploader.onUploadProgress = function(file, percentage) {
                     var $li = $('#' + file.id), $percent = $li
                             .find('.progress span');

                     $percent.css('width', percentage * 100 + '%');
                     percentages[file.id][1] = percentage;
                     updateTotalProgress();
                 };

                 uploader.onFileQueued = function(file) {
                     fileCount++;
                     fileSize += file.size;

                     if (fileCount === 1) {
                         $placeHolder.addClass('element-invisible');
                         $statusBar.show();
                     }

                     addFile(file);
                     setState('ready');
                     updateTotalProgress();
                 };

                 uploader.onFileDequeued = function(file) {
                     fileCount--;
                     fileSize -= file.size;

                     if (!fileCount) {
                         setState('pedding');
                     }

                     removeFile(file);
                     updateTotalProgress();

                 };

                 /*获取服务器返回的数据*/
                 uploader.on('uploadSuccess', function(file, response) {
                     alert(response.status);
                     if (response.status == "success") {
                         imagePath =response.filePath;
                         alert("文件保存路径：" + response.filePath);
                     } else if (response.status == "error")
                         alert(response.error);
                 });

                 uploader.on('all', function(type) {
                     var stats;
                     //alert(type);
                     switch (type) {
                     case 'uploadFinished':

                         setState('confirm');
                         break;

                     case 'startUpload':
                         setState('uploading');
                         break;

                     case 'stopUpload':
                         setState('paused');
                         break;

                     }
                 });

                 uploader.onError = function(code) {
                     alert('Eroor: ' + code);
                 };

                 $upload.on('click', function() {
                     if ($(this).hasClass('disabled')) {
                         return false;
                     }

                     if (state === 'ready') { //点击上传按钮，进入准备状态。
                         uploader.upload(); //开始上传
                     } else if (state === 'paused') {
                         uploader.upload();
                     } else if (state === 'uploading') {
                         uploader.stop();
                     }
                 });

                 $info.on('click', '.retry', function() {
                     uploader.retry();
                 });

                 $info.on('click', '.ignore', function() {
                     alert('todo');
                 });

                 $upload.addClass('state-' + state);
                 updateTotalProgress();
             });

         })(jQuery);
     </script>

注意：

4、controller代码

     /**
      * 跳转到上传发票的页面
      * @param proName
      * @param map
      * @return
      */
     @RequestMapping(value = "/upload" )
     public String invoiceUpload(String proName,Long id,Map<String, Object> map){
         map.put("proName", proName);
         projectService.getProject(id);
         map.put("projectId", id);
         return "project/invoiceUpload";
     }

     /**
      * 上传发票并保存导数据库
      * @param file
      * @param request
      * @param response
      * @return
      */
     @ResponseBody
     @RequestMapping(value = "/news_uploder", method ={RequestMethod.POST,RequestMethod.GET}, produces = "application/json; charset=utf-8")
     public JSONObject uploder(@RequestParam MultipartFile[] file,Long projectId,HttpServletRequest request,HttpServletResponse response){
         String flag=null;  

         JSONObject jsonObject = new JSONObject();
         try {
             WebuploaderUtil webuploaderUtil=new WebuploaderUtil();
             webuploaderUtil.upload(file[0], "upload/invoice/", request);
             flag=webuploaderUtil.getFileName();
             jsonObject.put("filePath", flag);
             jsonObject.put("status", "success");

         } catch (Exception e) {
             e.printStackTrace();
         }     

         return jsonObject;
     }  

5、工具类

 package com.softjx.util;

 /**
  *Project Name: QDLIMAP
  *File Name:    WebuploaderUtil.java
  *Package Name: com.ltmap.platform.cms.util
  *Date:         2017年4月13日 下午6:30:45
  *Copyright (c) 2017,578888218@qq.com All Rights Reserved.
 */  

 import java.io.File;
 import java.text.SimpleDateFormat;
 import java.util.Date;  

 import javax.servlet.http.HttpServletRequest;  

 import org.springframework.web.multipart.MultipartFile;  

 /**
  *Title:      WebuploaderUtil<br/>
  *Description:
  *@Company:   励图高科<br/>
  *@author:    刘云生
  *@version:   v1.0
  *@since:     JDK 1.8.0_40
  *@Date:      2017年4月13日 下午6:30:45 <br/>
 */
 public class WebuploaderUtil {
     private String allowSuffix = "jpg,png,gif,jpeg";//允许文件格式
     private long allowSize = 2L;//允许文件大小
     private String fileName;
     private String[] fileNames;  

     public String getAllowSuffix() {
         return allowSuffix;
     }  

     public void setAllowSuffix(String allowSuffix) {
         this.allowSuffix = allowSuffix;
     }  

     public long getAllowSize() {
         return allowSize*1024*1024;
     }  

     public void setAllowSize(long allowSize) {
         this.allowSize = allowSize;
     }  

     public String getFileName() {
         return fileName;
     }  

     public void setFileName(String fileName) {
         this.fileName = fileName;
     }  

     public String[] getFileNames() {
         return fileNames;
     }  

     public void setFileNames(String[] fileNames) {
         this.fileNames = fileNames;
     }  

     /**
      *
      * @Title:       getFileNameNew
      * @Description: TODO
      * @param:       @return
      * @return:      String
      * @author:      刘云生
      * @Date:        2017年4月14日 上午10:17:35
      * @throws
      */
     private String getFileNameNew(){
         SimpleDateFormat fmt = new SimpleDateFormat("yyyyMMddHHmmssSSS");
         return fmt.format(new Date());
     }  

     /**
      *
      * @Title:       uploads
      * @Description: TODO
      * @param:       @param files
      * @param:       @param destDir
      * @param:       @param request
      * @param:       @throws Exception
      * @return:      void
      * @author:      刘云生
      * @Date:        2017年4月14日 上午10:17:14
      * @throws
      */
     public void uploads(MultipartFile[] files, String destDir,HttpServletRequest request) throws Exception {
         String path = request.getContextPath();
         String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path;
         try {
             fileNames = new String[files.length];
             int index = 0;
             for (MultipartFile file : files) {
                 String suffix = file.getOriginalFilename().substring(file.getOriginalFilename().lastIndexOf(".")+1);
                 int length = getAllowSuffix().indexOf(suffix);
                 if(length == -1){
                     throw new Exception("请上传允许格式的文件");
                 }
                 if(file.getSize() > getAllowSize()){
                     throw new Exception("您上传的文件大小已经超出范围");
                 }
                 String realPath = request.getSession().getServletContext().getRealPath("/");
                 File destFile = new File(realPath+destDir);
                 if(!destFile.exists()){
                     destFile.mkdirs();
                 }
                 String fileNameNew = getFileNameNew()+"."+suffix;//
                 File f = new File(destFile.getAbsoluteFile()+"\\"+fileNameNew);
                 file.transferTo(f);
                 f.createNewFile();
                 fileNames[index++] =basePath+destDir+fileNameNew;
             }
         } catch (Exception e) {
             throw e;
         }
     }  

     /**
      *
      * @Title:       upload
      * @Description: TODO
      * @param:       @param file
      * @param:       @param destDir
      * @param:       @param request
      * @param:       @throws Exception
      * @return:      void
      * @author:      刘云生
      * @Date:        2017年4月14日 上午10:16:16
      * @throws
      */
     public void upload(MultipartFile file, String destDir,HttpServletRequest request) throws Exception {
         String path = request.getContextPath();
         //http://localhost:8088/huahang
         String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path;
         try {
                 String suffix = file.getOriginalFilename().substring(file.getOriginalFilename().lastIndexOf(".")+1);
                 int length = getAllowSuffix().indexOf(suffix);
                 if(length == -1){
                     throw new Exception("请上传允许格式的文件");
                 }
                 if(file.getSize() > getAllowSize()){
                     throw new Exception("您上传的文件大小已经超出范围");
                 }  

                 String realPath = request.getSession().getServletContext().getRealPath("/")+"/";  

                 File destFile = new File(realPath+destDir);
                 if(!destFile.exists()){
                     destFile.mkdirs();
                 }
                 String fileNameNew = getFileNameNew()+"."+suffix;
                 File f = new File(destFile.getAbsoluteFile()+"/"+fileNameNew);
                 file.transferTo(f);
                 f.createNewFile();
                 //包含网站的全路径http://localhost:8080/QDLIMAP/upload/user/20170414104142667.png
                 //fileName = basePath+destDir+fileNameNew;
                 //返回相对路径upload/user/20170414104142667.png
                 fileName = destDir+fileNameNew;
         } catch (Exception e) {
             throw e;
     }
 }
 }