JS创建文件并上传服务器

 1 package com.wunaozai.demo.uploadfile;
 2 
 3 import java.io.File;
 4 import java.util.Iterator;
 5 import java.util.UUID;
 6 
 7 import javax.servlet.http.HttpServletRequest;
 8 
 9 import org.springframework.stereotype.Controller;
10 import org.springframework.web.bind.annotation.GetMapping;
11 import org.springframework.web.bind.annotation.PostMapping;
12 import org.springframework.web.bind.annotation.RequestMapping;
13 import org.springframework.web.bind.annotation.ResponseBody;
14 import org.springframework.web.multipart.MultipartFile;
15 import org.springframework.web.multipart.MultipartHttpServletRequest;
16 import org.springframework.web.multipart.commons.CommonsMultipartResolver;
17 
18 @Controller
19 @RequestMapping(value="/test/")
20 public class UploadFileDemoController {
21 
22     @GetMapping(value="web")
23     public String web() {
24         return "upload/web";
25     }
26     
27     @ResponseBody
28     @PostMapping(value="upload")
29     public String uploadFile(HttpServletRequest request) {
30         CommonsMultipartResolver resolver =
31                 new CommonsMultipartResolver(request.getSession().getServletContext());
32         if(!resolver.isMultipart(request)) {
33             return "err";
34         }
35         MultipartHttpServletRequest multiRequest = (MultipartHttpServletRequest) request;
36         Iterator it = multiRequest.getFileNames();
37         while(it.hasNext()) {
38             try {
39                 MultipartFile uploadfile = multiRequest.getFile(it.next());
40                 File newfile = new File("C:\\tmp\\", "cc.txt");
41                 uploadfile.transferTo(newfile);
42             } catch (Exception e) {
43                 e.printStackTrace();
44             }
45         }
46         return "ok.";
47     }
48 }

  1 
  2 
  3  4   5   6 
  7 
  8 
  9     

 10          11     
 12     

 13          14     
 15     

 16          17     
 18     

 19          20     
 21     

 22          23     
 24     107 
108