⑴ java怎么创建Request
java怎么创建Reques步骤如下：
HttpServletRequest request = ServletActionContext.getRequest();
ServletContext servletContext = ServletActionContext.getServletContext();
request.setAttribute("req", "请求范围属性");
request.getSession().setAttribute("ses", "会话范围属性");
servletContext.setAttribute("app", "应用范围属性");
HttpServletResponse response = ServletActionContext.getResponse();