springmvc 上传多个文件

矫情吗；* 2022-06-02 05:08 229阅读 0赞

/**
    	 * 多个文件上传 50*
    	 * @param files  <input type="file" name="files"/><input type="file" name="files"/><input type="file" name="files"/>
    	 * @param request
    	 * @param response
    	 */
    	@RequestMapping(value = "/uploadFiles")
        public void uploadFiles(@RequestParam(value = "files", required = false) MultipartFile files[], HttpServletRequest request,HttpServletResponse response) {
    		Map<String, Object> responseRootMap = new HashMap<String, Object>();
    		Map<String, Object> responseMap = new HashMap<String, Object>();
    		Map<String, Object> headMap = new HashMap<String, Object>();
    		Map<String, Object> bodyMap = new HashMap<String, Object>();
    		responseRootMap.put("response", responseMap);
    		responseMap.put("head", headMap);
    		responseMap.put("body", bodyMap);
    		String fileUploadPath = (String) CommonQuartz.commonConfigData().get("img.upload.path");
    		response.setContentType("text/json;charset=UTF-8");  
    		PrintWriter out = null;
    		try {
    			out = response.getWriter();
    			StringBuilder newFileName = new StringBuilder(100);
    			StringBuilder fileUploadPathReally = new StringBuilder();
    			if(files!=null){
    				List<Map<String,Object>> listUploadResult=new ArrayList<Map<String,Object>>();
    				String imgUrlPath=(String) CommonQuartz.commonConfigData().get("img.url");
    				Date dateNow=new Date();
    				for(MultipartFile file:files){
    					newFileName.delete(0, newFileName.length());
    					fileUploadPathReally.delete(0, fileUploadPathReally.length());
    					String fileName = file.getOriginalFilename();
    					// 创建新的文件名字
    					newFileName.append(DateUtil.sdfyyyyMMddHHmmssSSS.format(new Date()));
    					newFileName.append(fileName);
    					logger.info("newFileName:" + newFileName);
    					fileUploadPathReally.append(fileUploadPath);
    					fileUploadPathReally.append(File.separator);
    					fileUploadPathReally.append(newFileName);
    					Map<String,Object> mapFileUpload=new HashMap<String, Object>();
    					try {
    						if(file.getSize()<=IMGMAXSIZE){
    							file.transferTo(new File(fileUploadPathReally.toString()));
    							String imgUrl=imgUrlPath+newFileName.toString();
    							ImgUpload imgUpload=new ImgUpload();
    							imgUpload.setImgUrl(imgUrl);
    							imgUpload.setNewFileName(newFileName.toString());
    							imgUpload.setOriginalFilename(fileName);
    							imgUpload.setSavetime(dateNow);
    							int insertSize=imgUploadMapper.insert(imgUpload);
    							mapFileUpload.put("success", true);
    							mapFileUpload.put("originalFilename", fileName);
    							mapFileUpload.put("newFilename", newFileName.toString());
    							mapFileUpload.put("imgUrl", imgUrl);
    							mapFileUpload.put("size", file.getSize());
    							mapFileUpload.put("resourceId", imgUpload.getId());
    							mapFileUpload.put("insertSize", insertSize);
    							listUploadResult.add(mapFileUpload);
    						}else{
    							mapFileUpload.put("success", false);
    							mapFileUpload.put("originalFilename", fileName);
    							mapFileUpload.put("size", file.getSize());
    							mapFileUpload.put("message", "文件超过5MB");
    							mapFileUpload.put("allowMaxSize", IMGMAXSIZE);
    							listUploadResult.add(mapFileUpload);
    						}
    					} catch (IllegalStateException e) {
    						mapFileUpload.put("success", false);
    						mapFileUpload.put("originalFilename", fileName);
    						mapFileUpload.put("size", file.getSize());
    						listUploadResult.add(mapFileUpload);
    						logger.error(fileName+"传输上传失败",e);
    					} catch (IOException e) {
    						mapFileUpload.put("success", false);
    						mapFileUpload.put("originalFilename", fileName);
    						mapFileUpload.put("size", file.getSize());
    						listUploadResult.add(mapFileUpload);
    						logger.error(fileName+"传输上传失败",e);
    					}
    				}
    				//将长传结果集放到结果中
    				bodyMap.put("uploadFilesResult", listUploadResult);
    				bodyMap.put("success", true);
    				bodyMap.put("message", "上传文件个数为"+files.length);
    			}else{
    				bodyMap.put("success", false);
    				bodyMap.put("message", "上传文件个数为0");
    			}
    			headMap.put("desc", "上传成功");
    			headMap.put("status", "0");
    			bodyMap.put("sysTime", DateUtil.sdfyyyy_MM_dd_HH_mm_ss.format(new Date()));
    			//bodyMap.put("sessionId", "");
    			out.write(JSONObject.fromObject(responseRootMap).toString());  
    			out.flush(); 
    			logger.info(JSONObject.fromObject(responseRootMap).toString());
    		} catch (Exception e) {
    			headMap.put("desc", "系统内部错误");
    			headMap.put("status", "5001");
    			bodyMap.put("sysTime", DateUtil.sdfyyyy_MM_dd_HH_mm_ss.format(new Date()));
    			//bodyMap.put("sessionId", "");
    			logger.error("上传图片失败",e);
    			out.write(JSONObject.fromObject(responseRootMap).toString());  
    			out.flush(); 
    		}
        }