I want to upload file using servlet.
Here is my code of servlet, on line

"List items = upload.parseRequest(request);"
i am getting null value for items
Pl. help me out....

			

			

			

			public void doPost(HttpServletRequest request,
			

			HttpServletResponse response) throws ServletException, IOException
			

			

			{
			

			response.setContentType(CONTENT_TYPE);
			

			PrintWriter out = response.getWriter();
			

			

			String optionalFileName="";
			

			String fileName="";
			

			boolean fileUpload=false;
			

			FileItem itm=null;
			

			

			

			boolean isMultipart = ServletFileUpload.isMultipartContent(request);
			

			System.out.println("request: "+request);
			

			

			if(!isMultipart)
			

			{
			

			}
			

			else
			

			{
			

			

			FileItemFactory factory = new DiskFileItemFactory();
			

			ServletFileUpload upload = new ServletFileUpload(factory);
			

			//upload.setSizeMax(100000000);
			

			

			try {
			

			List items = upload.parseRequest(request);
			

			

			System.out.println("Items are" +items);
			

			Iterator itr = items.iterator();
			

			FileItem itm1 = null;
			

			...........
			

			.............