fileupload上传下载.doc

Fileupload使用上传：try / Check that we have a file upload requestboolean isMultipart = ServletFileUpload.isMultipartContent(request);if(isMultipart)/ Create a factory for disk-based file itemsFileItemFactory factory = new DiskFileItemFactory();/ Create a new file upload handlerServletFileUpload upload = new ServletFileUpload(factory);/ Parse the requestList /* FileItem */ items = upload.parseRequest(request);for (FileItem fileItem : items) if(!fileItem.isFormField()System.out.println(fileItem.getFieldName();System.out.println(fileItem.getName();System.out.println(fileItem.getSize();/System.out.println();/get real path of tomact server.String path=getServletContext().getRealPath();/System.out.println(path); File newFile=new File(path+upfile+fileItem.getName();OutputStream output=null;try output=new FileOutputStream(newFile);output.write(fileItem.get();output.flush(); catch (Exception e) e.printStackTrace();finallyif(output!=null)output.close();UpFileDAO upfileDAO=new UpFileDAO();UpFileVO upfile=new UpFileVO();upfile.setFileName(fileItem.getName();upfile.setFileSize(fileItem.getSize();upfile.setAccess(0);if(!upfileDAO.insertUpFile(upfile)newFile.delete();else /System.out.println();if(expireTime.equals(fileItem.getFieldName()System.out.println(fileItem.getString(); catch (FileUploadException e) / TODO Auto-generated catch blocke.printStackTrace();下载：String fileName=request.getParameter(fileName);String path=getServletContext().getRealPath();/System.out.println(path); File newFile=new File(path+upfile+fileName);if(newFile.exists()InputStream input =null;OutputStream output =null;try input = new FileInputStream(newFile);byte tempBytes=new byteinput.available();input.read(tempBytes);response.setContentType(application/x-msdownload);response.setHeader(Content-Disposition, attachment; filename=+fileName);output = response.getOutputStream();output.write(tempBytes);output.flush(); catch (Exception e) / TODO Auto-genera