将多张图片打包成zip包，一起上传

1、前端页面

<div class="mod-body" id="showRW" style="text-align: center;font-size: 14px;letter-spacing: 1px;line-height: 24px;padding-bottom: 10px;height:400px;background:#FFFFFF !important;padding-top:140px;">
							<table style="width: 100%;background:#FFFFFF !important;">
								<tr>
									<td style="text-align: center;">
										<span>选择类型：</span>
										<select name="photoType" id="photoType" style="width:200px;">

										</select>
									</td>
								</tr>
								<tr>
									<td style="text-align: center;">
										<span>选择文件：</span>
										<input type="file" style="width:200px;padding: 0 0px !important;" name="importImg" id="importImg">
									</td>
								</tr>
								<tr style="text-align: center;">
									<td >
				  						<input id="submitBtn" type="button" class="button" value="提交" style="width:130px;background: #263552;color: #FFF;border: 0px;border-radius: 2px;height: 28px;"/>
			  						</td>
			  					</tr>
			  					<tr style="text-align: center;">
									<td >
										<div style="display: inline-block;width: 50%;line-height: 30px;text-align: left;padding-left: 550px;">
											<span style="color:red;">注意：</span><br>
											<span>1、仅支持图片打包成ZIP包，不能直接将文件夹打压缩包</span><br/>
											<span>2、上传的每张图片大小须在100K以内</span>
										</div>

			  						</td>
			  					</tr>
							</table>
                   		</div>

　　2、js代码

//提交
		$("#submitBtn").click(function(){

			var photoTypeSelect = $("#photoType").val();
			if(photoTypeSelect == -1){
				alert("请选择照片墙类型");
				return false;
			}

			var importFile = $("#importImg")[0].files[0];
			if($("#importImg").val() == ''){
				alert("请选择文件！");
				return false;
			}else{
				var fileNameIndex = importFile.name.lastIndexOf(".");
				var fileName = importFile.name.substring(fileNameIndex,importFile.name.length);
				if((fileName.toLowerCase() != ".zip" )){
					 alert("文件必须为.zip类型");
    				 window.location.href='#';
           			 return false;
				}
			}
			$("#mask").show();
			$("#shDiv1").show();
			var formData = new FormData();
			formData.append("importFile", importFile);
			formData.append("photoTypeSelect", photoTypeSelect);
            formData.append("conId",conId);
			$.ajax({
				url:"<%=basePath%>/Conferences/photoWallAction.do?method=importPhotoWall",
				type:"post",
				dataType:"json",
				data: formData,
				dataType:"json",
	            // 告诉jQuery不要去处理发送的数据
	            processData: false,
	            // 告诉jQuery不要去设置Content-Type请求头
	            contentType: false,
	            async:false,
				success:function(json){
					$("#mask").hide();
					$("#shDiv1").hide();
					if(json.state == 1){
						if(confirm('导入成功！')){
							window.location.reload();
						}
					}else{
						if(confirm('导入失败！')){
							window.location.reload();
						}
					}
				},
				error:function(){
					if(confirm('导入失败！')){
							window.location.reload();
						}
				}
			})

		})

　　3、后台数据处理

@RequestMapping(params = "method=importPhotoWall",method = RequestMethod.POST)
	public void importPhotoWall(Integer conId,Integer photoTypeSelect,HttpServletRequest request,HttpServletResponse response,ModelMap model){
		try {
			JSONObject result = new JSONObject();
			MultipartHttpServletRequest mRequest = (MultipartHttpServletRequest) request;
			MultipartFile mFile = mRequest.getFile("importFile");
			String theUrl = request.getScheme()+"://"+request.getServerName()+request.getContextPath()+"/";
			String fileUrl =  request.getSession().getServletContext().getRealPath("files");
			try {
				File file11 = new File(fileUrl+"/photoWallZip");
				if(!file11.exists()){
					file11.mkdirs();
				}
				File file = new File(fileUrl+"/photoWallZip","zip"+conId+".zip");
				mFile.transferTo(file);

				//解压到目的文件夹
				File file1 = new File(fileUrl+"/photoWall/"+conId+"/");
				if(!file1.exists()){
					file1.mkdirs();
				}

				if(file != null){// 压缩文件夹存在
					ZipFile zf = new ZipFile(fileUrl+"/photoWallZip/zip"+conId+".zip",Charset.forName("GBK"));
					Enumeration<?> entries = zf.entries();
					while(entries.hasMoreElements()){
						byte[] bytes = new byte[2048];
						int count = -1;
						ZipEntry entry = (ZipEntry)entries.nextElement();
						String fileName = entry.getName();
						String saveUrl = "";
						if(entry.isDirectory()){

						}else{
							fileName = new Date().getTime()+fileName.substring(fileName.lastIndexOf("."), fileName.length());
							saveUrl = fileUrl+"/photoWall/"+conId+"/"+fileName;
							File file2 = new File(saveUrl);
							file2.createNewFile(); //创建文件
							InputStream is = zf.getInputStream(entry);
							FileOutputStream fos =  new FileOutputStream(file2);
							BufferedOutputStream bos = new BufferedOutputStream(fos, 2048);
							 while((count = is.read(bytes)) > -1)
						        {
						          bos.write(bytes, 0, count);
						        }
							bos.flush();
					        bos.close();
					        fos.close();
					        is.close();
						}
						 List<PhotoWall> phoList = photoWallService.getPhotpWallByConIdAndTypeasc(conId, photoTypeSelect);
						 PhotoWall photoWall = new PhotoWall();
			        	 photoWall.setConferencesId(conId);
			        	 photoWall.setCreateTime(new Date());
			        	 if(phoList != null && phoList.size() > 0){
			        		 if(phoList.get(0) != null && phoList.get(0).getLastDoTime() != null){
			        			 photoWall.setLastDoTime(new Date(phoList.get(0).getLastDoTime().getTime()+60000));
			        		 }else{
			        			 photoWall.setLastDoTime(new Date());
			        		 }
			        	 }else{
			        		 photoWall.setLastDoTime(new Date());
			        	 }
			        	 photoWall.setCreateUserId(-1);
			        	 photoWall.setCreateUserType(-1);
			        	 photoWall.setImageUrl(theUrl+"files/photoWall/"+conId+"/"+fileName);
			        	 photoWall.setLaudCount(0);
			        	 photoWall.setState(2);
			        	 photoWall.setTypeId(photoTypeSelect);
			        	 photoWallService.saveOrUpdateObject(photoWall);
				    }
					zf.close();
					if(!file.exists()){
						System.out.println("删除文件失败,文件不存在");
					}else{
						 if (file.isFile())
						   if(!file.delete()){//判断是否删除完毕
						       System.gc();//系统进行资源强制回收
						       file.delete();
						   }
						   System.out.println("删除成功");
						 }
					}
			} catch (Exception e) {
				result.accumulate("state", 0);
				e.printStackTrace();
			}
			result.accumulate("state", 1);
			writeToJson(response, result.toString());
		} catch (Exception e) {
			e.printStackTrace();
		}
	}