如何在struts 中获得request respones session

构架基类  action 继承基类

public class BaseAction implements ServletRequestAware,ServletResponseAware,SessionAware,ServletContextAware {

protected Map<String, Object> session;

protected transient HttpServletRequest request;

protected transient HttpServletResponse response;    

    protected transient ServletContext context;

    

public void setServletRequest(HttpServletRequest request) {

this.request = request;

}

public void setServletResponse(HttpServletResponse response) {

this.response = response;

}

public void setSession(Map<String, Object> session) {

this.session = session;

}

public void setServletContext(ServletContext context) {

this.context = context;

}

}