javax.servlet.annotation
注释类型 WebListener

@Target(value=TYPE)
@Retention(value=RUNTIME)
@Documented
public @interface WebListener

This annotation is used to declare a WebListener. Any class annotated with WebListener must implement one or more of the ServletContextListener, ServletContextAttributeListener, ServletRequestListener, ServletRequestAttributeListener, HttpSessionListener, or HttpSessionAttributeListener interfaces.

从以下版本开始：

Servlet 3.0

可选元素摘要

String

value Description of the listener

value

public abstract String value

Description of the listener

默认值：

""