贡献一下
//问题
用session怎么能将客户端的正在浏览的url不断发送到服务器端呢?
//回答,用sessionListener[Session监听器来实现]//下边是一个监器的源码,实现了在线人数
package core;
import javax.servlet.*;
import javax.servlet.http.*;public final class CounterListener implements HttpSessionListener {
private int count = 10;
private ServletContext context = null; public synchronized void sessionCreated(HttpSessionEvent se) {
count++;
log("sessionCreated('" + se.getSession().getId() + "'LuoTing's Log)"+" count="+count);
se.getSession().setAttribute("count",new Integer(count));
} public synchronized void sessionDestroyed(HttpSessionEvent se) {
count--;
se.getSession().setAttribute("count",new Integer(count));
} public int getCount() {
return this.count;
} public void addCount(){
count++;
} private void log(String message) { if (context != null)
context.log("SessionListener: " + message);
else
System.out.println("SessionListener: " + message); }
}//这就是一个监听器的源码,已经在Tomcat4.01上测试过[Tomcat3.1是不成的,其余app server的实现情况,得看它的DOCS]//这个监听器需在你的web.xml中注册
//like this <listener>
<listener-class>core.SessionListener</listener-class>
</listener>//放置的位置你放到它的示例后边即可
//问题
用session怎么能将客户端的正在浏览的url不断发送到服务器端呢?
//回答,用sessionListener[Session监听器来实现]//下边是一个监器的源码,实现了在线人数
package core;
import javax.servlet.*;
import javax.servlet.http.*;public final class CounterListener implements HttpSessionListener {
private int count = 10;
private ServletContext context = null; public synchronized void sessionCreated(HttpSessionEvent se) {
count++;
log("sessionCreated('" + se.getSession().getId() + "'LuoTing's Log)"+" count="+count);
se.getSession().setAttribute("count",new Integer(count));
} public synchronized void sessionDestroyed(HttpSessionEvent se) {
count--;
se.getSession().setAttribute("count",new Integer(count));
} public int getCount() {
return this.count;
} public void addCount(){
count++;
} private void log(String message) { if (context != null)
context.log("SessionListener: " + message);
else
System.out.println("SessionListener: " + message); }
}//这就是一个监听器的源码,已经在Tomcat4.01上测试过[Tomcat3.1是不成的,其余app server的实现情况,得看它的DOCS]//这个监听器需在你的web.xml中注册
//like this <listener>
<listener-class>core.SessionListener</listener-class>
</listener>//放置的位置你放到它的示例后边即可
要讲的话,最好结合cookie呵呵