jquery.ocupload上传文件到指定目录

首先引入两个js

1 <script type="text/javascript" src="${pageContext.request.contextPath }/resource/js/jquery-1.8.3.js"></script>
2 <script type="text/javascript" src="${pageContext.request.contextPath }/resource/js/jquery_ocupload.js"></script>

1 <body>
2     <button type="button" id="import">上传文件</button>
3 </body>

 1 <script type="text/javascript">
 2     $("#import").upload({
 3         name : 'upload',     // 文件名，要与ation中的参数名一致
 4         action : '${pageContext.request.contextPath}/upload/file.do',   // action路径
 5         enctye : 'multipart/form-data',            // 设置编码格式，默认multipart/form-data
 6         autoSubmit : true,                              // 选中文件提交表单
 7         onComplete : function(flag) {             // 请求完成后的回调函数
 8             if (flag == '0') {
 9                 alert("数据导入成功！");
10             } else {
11                 alert("数据导入失败！");
12             }
13         }
14     });
15 </script>

后台代码：

 1     @RequestMapping(method=RequestMethod.POST, value="/upload/file")
 2     @ResponseBody
 3     private String upload(MultipartFile upload, HttpServletRequest request) throws IOException {
 4         String flag = "";
 5         String path = request.getRealPath("/") + "../dexing/politik";   // 存放文件的路径
 6         File file = new File(path, upload.getOriginalFilename());
 7         if (file.exists()) {  // 判断文件是否已经存在
 8             flag = "1";
 9             return flag;
10         } else {
11             try {
12                 upload.transferTo(file);   // 将文件写到指定路径下
13             } catch (Exception e) {
14                 flag = "-1";
15                 e.printStackTrace();
16                 return flag;
17             }
18         }
19         flag = "0";
20         return flag;
21     }