//获取HttpServletRequest

HttpServletRequest request = ServletActionContext.getRequest();

//获取HttpServletResponse

HttpServletResponse response= ServletActionContext.getResponse();

//获取session回话

HttpSession session = request.getSession();

Struts封装的请求回话

//首先获取ActionContext

ActionContext actionContext = ActionContext.getContext()

//请求级以map的形式存放数据

actionContext.put(key,value);

//获取map类型的session

Map<String, Object> session = actionContext.getSession();

//回话级以map的形式存放数据

session.put(key,value);