JQueryAjax使用SpringMVC中MultipartFile进行文件上传

对于一个带有文件上传的表单，后台使用springMVC封装的MultipartFile file接收文件，并且需要使用异步提交，并返回相应的提示信息

使用JQUERY的form插件，即jquery.form.js这个插件，然后使用插件的ajaxSubmit方法；代码如下

 1 $("#pageForm").ajaxSubmit({
 2     type: "POST",
 3     url:"你的action.html",
 4     dataType: "json",
 5     success: function(data){
 6         if(data.msg==‘SUCCESS‘){
 7            alert(success);
 8         }
 9         else{
10                alert(data.msg);
11         }
12     }
13 });    

 1 @RequestMapping("/insertGoodsBrand")
 2     public void insertGoodsBrand(
 3             HttpServletRequest request,
 4             @RequestParam(value = "file", required = false) MultipartFile file,HttpServletResponse response,
 5             GoodsBrand goodsBrand){
 6         JSONObject obj = new JSONObject();
 7         PrintWriter out = null;
 8         try {
 9             out = response.getWriter();
10             String path = request.getSession().getServletContext().getRealPath(
11                     "upload\\goods\\brand");
12             String fileName = file.getOriginalFilename();
13             String saveFileName = Common.getNowCorrect2Second() + "."
14                     + fileName.substring(fileName.lastIndexOf(".") + 1);
15             File targetFile = new File(path, saveFileName);
16             if (!targetFile.exists()) {
17                 targetFile.mkdirs();
18             }
19             String msg = "";
20             file.transferTo(targetFile);
21                 msg = backGoodsBrandBus.insertGoodsBrand(goodsBrand, saveFileName);
22             if (msg.equals("SUCCESS")) {
23                 obj.put("msg", msg);
24             } else {
25                 obj.put("msg", msg);
26             }
27             out.print(obj);
28         } catch (Exception e) {
29             e.printStackTrace();
30         }
31         finally{
32             out.close();
33         }
34     }