ServletFileUpload 上传文件大小为零!求解决

kEnnponN 2016-08-03 12:11:15

protected void service(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {

		// TODO Auto-generated method stub

		Boolean first = true;

		Item i = new Item(KeponUtil.getRanName());

		String pathStr = null;

		if (ServletFileUpload.isMultipartContent(req)) {

			DiskFileItemFactory factory = new DiskFileItemFactory();

			ServletFileUpload upload = new ServletFileUpload(factory);

		    upload.setSizeMax(4 * 1024 * 1024);  

			upload.setHeaderEncoding("UTF-8");

			// System.out.println(storePath);

			List list = null;

			try {

				list = upload.parseRequest(req);

			} catch (FileUploadException e) {

				// TODO Auto-generated catch block

				e.printStackTrace();

			}

			Iterator it = list.iterator();

			while (it.hasNext()) {



				FileItem fi = (FileItem) it.next();

				// 这段代码是判断表单是否为常规表单

				// 自动将表单元素装填到ITEM的对象当中

				if (fi.isFormField()) {

					String name = fi.getFieldName();

					switch (name) {

					case "uId": {

						System.out.println(fi.getFieldName());

						i.setuId(Integer.parseInt(fi.getString("UTF-8")));

						break;

					}

					case "itemName": {

						i.setItemName(fi.getString("UTF-8"));

						break;

					}

					case "itemInfo": {

						i.setItemInfo(fi.getString("UTF-8"));

						break;

					}

					case "price": {

						i.setPrice(fi.getString("UTF-8"));

						break;

					}

					case "type": {

						i.setType(fi.getString("UTF-8"));

						break;

					}

					case "width": {

						System.out.println("width is ok!");

						i.setWidth(fi.getString("UTF-8"));

						break;

					}

					}



				} else {

					String storePath = getServletContext().getRealPath("/items/" + i.getRandomName());

					System.out.println(storePath);

					File uploadDir = new File(storePath);

					uploadDir.mkdirs();

					KeponUtil.createFile(fi, storePath, fi.getName(), first, i.getRandomName()+".png");



				}

			}



		}

		if (KeponUtil.isFullItem(i)) {

			String resource = "conf.xml";

			Reader reader = Resources.getResourceAsReader(resource);

			SqlSessionFactory factioy = new SqlSessionFactoryBuilder().build(reader);

			SqlSession s1 = factioy.openSession();

			s1.insert("com.yuhanghs.entity.ItemMapper.addItem", i);

			System.out.println("-------------------------adding");

			s1.commit();

			 req.getRequestDispatcher("/Item").forward(req,

			 resp);

		}

	}

public static void createFile(FileItem f,String path,String fileName,Boolean index,String...i){

		if(index)

		{

			try {

				File file = new File(path, i[0]);

				f.write(file);

			} catch (Exception e) {

				// TODO Auto-generated catch block

				e.printStackTrace();

			}

		}else{

			File file = new File(path, fileName);

			try {

				f.write(file);

			} catch (Exception e) {

				// TODO Auto-generated catch block

				e.printStackTrace();

			}

		}