java向应用发送HTTP请求

public void doPost(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {response.setCharacterEncoding("utf-8");PrintWriter out = response.getWriter();String reqXml = request.getParameter("req");//来自客户端的请求参数out.println(handleData(reqXml));out.flush();out.close();}

?? 然后配置web.xml

?