protected void doPost(HttpServletRequest request,
			HttpServletResponse response) throws ServletException, IOException {

		// ȡʽ
		String servletPath = request.getServletPath();
		if ("/upload".equals(servletPath))
			upload(request, response);
		else if ("/downloadview".equals(servletPath))
			downloadview(request, response);
		else if ("/downloadrun".equals(servletPath))
			downloadrun(request, response);
	}