Struts中获取session

public class AuthInterceptor extends AbstractInterceptor {public String intercept(ActionInvocation invocation) throws Exception {//获取用户会话信息Map session= invocation.getInvocationContext().getSession();User user = (User)session.get("login");if (user == null) {//终止执行，返回登录页面return Action.LOGIN;} else {//继续执行剩余的拦截器和Actionreturn invocation.invoke();}}}