Springmvc File Upload and download

Upload

1.jar Package with Springmvc.xml

Package the request into multiparthttpservletrequest.

2. Page

Note that method is post

3.action

Method one parsing (request)

Method two (parameter)

Download

2. @RequestMapping ("/download/{filename}")
4. Public modelandview Download (@PathVariable ("FileName")
6. String FileName, httpservletrequest request, httpservletresponse response)
8. throws Exception {
12. Response.setcontenttype ("Text/html;charset=utf-8");
14. Request.setcharacterencoding ("UTF-8");
16. Java.io.BufferedInputStream bis = null;
18. Java.io.BufferedOutputStream BOS = null;
22. String Ctxpath = Request.getsession (). Getservletcontext (). Getrealpath (
24. "/")  
26. + " \ \" + "images\\";
28. String Downloadpath = Ctxpath + fileName;
30. System.out.println (Downloadpath);
32. try {
34. Long filelength = new File (Downloadpath). Length ();
36. Response.setcontenttype ("application/x-msdownload;");
38. Response.setheader ("content-disposition", "attachment; Filename= "
40. + New String (Filename.getbytes ("Utf-8"), "iso8859-1"));
42. Response.setheader ("Content-length", String.valueof (Filelength));
44. bis = new Bufferedinputstream (new FileInputStream (Downloadpath));
46. BOS = New Bufferedoutputstream (Response.getoutputstream ());
48. byte[] Buff = new byte[2048];
50. int bytesread;
52. While (-1! = (Bytesread = bis.read (buff, 0, Buff.length))) {
54. Bos.write (Buff, 0, Bytesread);
56. }
58. } catch (Exception e) {
60. E.printstacktrace ();
62. } finally {
64. if (bis! = null)
66. Bis.close ();
68. if (bos! = null)
70. Bos.close ();
72. }
74. return null;
76. }
78. }

Springmvc File Upload and download