楼主的几个错误源码 package Bean.Sample;import java.util.Date; import javax.servlet.http.HttpSessionEvent; import javax.servlet.http.HttpSessionListener;public class counterListenerExam implements HttpSessionListener{ private static int count = 0; private static int activeCount = 0; public void sessionCreated(HttpSessionEvent evt){
long time = evt.getSession().getCreationTime(); System.out.println("session 建立的时间" + new Date(time)); count ++; activeCount ++; } public void sessionDestroyed(HttpSessionEvent evt){
package Bean.Sample;import java.util.Date;
import javax.servlet.http.HttpSessionEvent;
import javax.servlet.http.HttpSessionListener;public class counterListenerExam implements HttpSessionListener{ private static int count = 0;
private static int activeCount = 0; public void sessionCreated(HttpSessionEvent evt){
long time = evt.getSession().getCreationTime();
System.out.println("session 建立的时间" + new Date(time)); count ++;
activeCount ++;
} public void sessionDestroyed(HttpSessionEvent evt){
activeCount -- ;
} public static String getCounteInfo(){ return "建立总数:" + count + "\n" +
"活动总数:" + activeCount;
}
}
<listener>
<listener-class>Bean.Sample.counterListenerExam</listener-class>
</listener>
3. JSP页应用 <%@ page import="Bean.Sample.*"%>
<%
counterListenerExam.getCounteInfo();
%>