用监听器作初始化
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Java代码
public class BbsListener implements ServletContextListener,
HttpSessionListener, ServletRequestListener {
public void contextDestroyed(ServletContextEvent arg0) {
// TODO Auto-generated method stub
}
public void contextInitialized(ServletContextEvent arg0) {
// TODO Auto-generated method stub
//启动ServerSokcet
}
public void sessionCreated(HttpSessionEvent arg0) {
// TODO Auto-generated method stub
}
public void sessionDestroyed(HttpSessionEvent arg0) {
// TODO Auto-generated method stub
}
public void requestDestroyed(ServletRequestEvent arg0) {
// TODO Auto-generated method stub
}
public void requestInitialized(ServletRequestEvent arg0) {
// TODO Auto-generated method stub
}
}
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web.xml
Xml代码
<listener>
<listener-class>com.bbs.listener.BbsListener</listener-class>
</listener>
本文介绍了一个Java Web应用程序中使用监听器进行初始化的过程。通过实现`ServletContextListener`、`HttpSessionListener`和`ServletRequestListener`接口,该监听器可以在不同的生命周期阶段执行特定的操作,如启动ServerSocket等。
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