javax.servlet.http
接口 HttpSessionListener

所有超级接口：

EventListener

public interface HttpSessionListener
extends EventListener

Interface for receiving notification events about HttpSession lifecycle changes.

In order to receive these notification events, the implementation class must be either declared in the deployment descriptor of the web application, annotated with WebListener, or registered via one of the addListener methods defined on ServletContext.

Implementations of this interface are invoked at their sessionCreated(javax.servlet.http.HttpSessionEvent) method in the order in which they have been declared, and at their sessionDestroyed(javax.servlet.http.HttpSessionEvent) method in reverse order.

从以下版本开始：

Servlet 2.3

另请参见：

HttpSessionEvent

方法摘要

void	sessionCreated(HttpSessionEvent se) Receives notification that a session has been created.
void	sessionDestroyed(HttpSessionEvent se) Receives notification that a session is about to be invalidated.

方法详细信息

sessionCreated

void sessionCreated(HttpSessionEvent se)

Receives notification that a session has been created.

参数：

se - the HttpSessionEvent containing the session

sessionDestroyed

void sessionDestroyed(HttpSessionEvent se)

Receives notification that a session is about to be invalidated.

参数：

se - the HttpSessionEvent containing the session