fileupload

使用common-fileupload和common-io来上传文件

1.将两个jar包倒入到工程中

2.编写上传文件的jsp页面

3.编写servlet

protected void processRequest(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { response.setContentType("text/html;charset=GBK"); PrintWriter out = response.getWriter(); URL url = getServletContext().getResource("/"); RequestContext ctx = new ServletRequestContext(request); boolean isMultipart = ServletFileUpload.isMultipartContent(ctx); if(isMultipart){ DiskFileItemFactory factory = new DiskFileItemFactory(); factory.setSizeThreshold(1024*1024); ServletFileUpload upload = new ServletFileUpload(factory); upload.setSizeMax(1024*1024); List items = null; try{ items = upload.parseRequest(ctx); for(int i=0;i<items.size();i++){ FileItem fi = (FileItem)items.get(i); if(fi.isFormField()){ String name = fi.getFieldName(); String value = fi.getString(); out.println("it is a form value"); }else{ String fileName = fi.getName(); out.println(fileName); if(null != fileName) { File fullFile = new File(fi.getName()); if(fullFile.exists()){ File fileOnServer = new File("c:/download",fullFile.getName()); fi.write(fileOnServer); out.println("success"); } } } } }catch(Exception e){ e.printStackTrace(); } } out.close(); }

4.正常的表单域与文件表单域

5.参考文章

http://www.blogjava.net/sitinspring/archive/2008/04/12/192408.html

http://dev.csdn.net/develop/article/28/28913.shtm