//1. 添加或访问request,session ,application 的属性
ActionContext actionContext = ActionContext.getContext();
// application scope
actionContext.getApplication().put("", null);
// session scope
actionContext.getSession().put("", null);
// request scope
actionContext.put("LOGINUSER", employeeResult);
// 2.获取HttpServletRequest/HttpSession /servletContext/HttpServletResponse 对象
HttpServletRequest request = ServletActionContext.getRequest();
ServletContext servletContext = ServletActionContext
.getServletContext();
HttpSession session = request.getSession();
HttpServletResponse response = ServletActionContext.getResponse();