|
1 package org.appfuse.webapp.action;
2
3 import java.io.File  ;
4 import java.io.FileOutputStream ;
5 import java.io.InputStream ;
6 import java.io.OutputStream ;
7
8 import javax.servlet.http.HttpServletRequest ;
9 import javax.servlet.http.HttpServletResponse ;
10
11 import org.appfuse.Constants;
12 import org.springframework.validation.BindException;
13 import org.springframework.web.multipart.MultipartHttpServletRequest;
14 import org.springframework.web.multipart.commons.CommonsMultipartFile;
15 import org.springframework.web.servlet.ModelAndView;
16
17
26 public class FileUploadController extends BaseFormController {
27
28 public FileUploadController() {
29 setCommandName("fileUpload");
30 setCommandClass(FileUpload.class);
31 }
32
33 public ModelAndView processFormSubmission(HttpServletRequest request,
34 HttpServletResponse response,
35 Object command,
36 BindException errors)
37 throws Exception {
38 if (request.getParameter("cancel") != null) {
39 return new ModelAndView(getCancelView());
40 }
41
42 return super.processFormSubmission(request, response, command, errors);
43 }
44
45 public ModelAndView onSubmit(HttpServletRequest request,
46 HttpServletResponse response, Object command,
47 BindException errors)
48 throws Exception {
49 FileUpload fileUpload = (FileUpload) command;
50
51 if (fileUpload.getFile().length == 0) {
53 Object [] args =
54 new Object [] { getText("uploadForm.file", request.getLocale()) };
55 errors.rejectValue("file", "errors.required", args, "File");
56
57 return showForm(request, response, errors);
58 }
59
60 MultipartHttpServletRequest multipartRequest =
61 (MultipartHttpServletRequest) request;
62 CommonsMultipartFile file =
63 (CommonsMultipartFile) multipartRequest.getFile("file");
64
65 String uploadDir =
67 getServletContext().getRealPath("/resources") + "/" +
68 request.getRemoteUser() + "/";
69
70 File dirPath = new File (uploadDir);
72
73 if (!dirPath.exists()) {
74 dirPath.mkdirs();
75 }
76
77 InputStream stream = file.getInputStream();
79
80 OutputStream bos =
82 new FileOutputStream (uploadDir + file.getOriginalFilename());
83 int bytesRead = 0;
84 byte[] buffer = new byte[8192];
85
86 while ((bytesRead = stream.read(buffer, 0, 8192)) != -1) {
87 bos.write(buffer, 0, bytesRead);
88 }
89
90 bos.close();
91
92 stream.close();
94
95 request.setAttribute("friendlyName", fileUpload.getName());
97 request.setAttribute("fileName", file.getOriginalFilename());
98 request.setAttribute("contentType", file.getContentType());
99 request.setAttribute("size", file.getSize() + " bytes");
100 request.setAttribute("location",
101 dirPath.getAbsolutePath() + Constants.FILE_SEP +
102 file.getOriginalFilename());
103
104 String link =
105 request.getContextPath() + "/resources" + "/" +
106 request.getRemoteUser() + "/";
107
108 request.setAttribute("link", link + file.getOriginalFilename());
109
110 return new ModelAndView(getSuccessView());
111 }
112 }
113 |
Popular Tags |
Java API By Example, From Geeks To Geeks.