web.xml中
<session-config>
<session-timeout>300</session-timeout>
</session-config>
在运行期间会根据配置文件的Session超时时间定时对超时的Session进行清理。
<session-config>
<session-timeout>300</session-timeout>
</session-config>
在运行期间会根据配置文件的Session超时时间定时对超时的Session进行清理。
推荐用Filter,这样就可以省掉很多重复的代码
if (session.getAttribute(yourSessionName) == null) {
//redirect to login page
}
<listener-class>nona.base.server.UserSessionListener</listener-class>
</listener>
==================package nona.base.server;
import java.util.*;
import javax.servlet.*;
import javax.servlet.http.*;
import org.apache.commons.logging.*;public class UserSessionListener implements HttpSessionListener{
private static Log log = LogFactory.getLog(UserSessionListener.class); public void sessionCreated(HttpSessionEvent evt) {
log.info("new Session created");
initSession(evt.getSession());
} private void initSession(HttpSession session) {
SessionHelper.increaseCount();
} public void sessionDestroyed(HttpSessionEvent evt) {
SessionHelper.decreaseCount();
log.info("one Session destroyed");
}}
import javax.servlet.*;
import javax.servlet.http.*;
import org.apache.commons.logging.*;public class UserSessionListener implements HttpSessionListener{
private static Log log = LogFactory.getLog(UserSessionListener.class); public void sessionCreated(HttpSessionEvent evt) {
log.info("new Session created");
} public void sessionDestroyed(HttpSessionEvent evt) {
log.info("one Session destroyed");
}}
<session-config>
<session-timeout>300</session-timeout>
</session-config>但前辈的更x一些诶