获取HttpServletRequest request对象 和 HttpServletResponse response对象

获取HttpServletRequest request对象 和 HttpServletResponse response对象

方法一：
      HttpServletRequest request = Struts2Utils.getRequest();
      HttpServletResponse response = Struts2Utils.getResponse();

方法二：		
      HttpServletRequest request = ServletActionContext.getRequest(); 
      HttpServletResponse response = ServletActionContext.getResponse();

 String billId = Struts2Utils.getParameter("id").trim();