Hi, But be carefull because the actions will be executed before redirecting to JSP, so I think it?s better to check the session in all the actions, isn?t it?
> > Make a custom tag like so : > > > > Create a tld file with this in it : > > <?xml version="1.0" encoding="ISO-8859-1" ?> > <!DOCTYPE taglib PUBLIC "-//Sun Microsystems, Inc.//DTD JSP > Tag Library > 1.1//EN" "http://java.sun.com/j2ee/dtds/web-jsptaglibrary_1_1.dtd";> > <taglib> > <tlibversion>1.0</tlibversion> > <jspversion>1.1</jspversion> > <shortname>Tag Libs</shortname> > <info>ustom Tags</info> > <tag> > <name>checkLogin</name> > > <tagclass>com.cpaglobal.cpadirect.tag.CheckLogin</tagclass> > <bodycontent>empty</bodycontent> > <info>Checks the login status of a user and > forward them to the > login page if not logged in.</info> > <attribute> > <name>loginPage</name> > <required>false</required> > <rtexprvalue>false</rtexprvalue> > </attribute> > <attribute> > <name>default</name> > <required>false</required> > <rtexprvalue>false</rtexprvalue> > </attribute> > </tag> > </taglib> > > > > Code for the custom tag : > > package com.cpaglobal.cpadirect.tag; > > import java.io.IOException; > > import javax.servlet.ServletException; > import javax.servlet.http.HttpSession; > import javax.servlet.jsp.JspException; > import javax.servlet.jsp.tagext.TagSupport; > > import com.cpaglobal.cpadirect.applicationlogic.SessionVariables; > import com.cpaglobal.cpadirect.applicationlogic.User; > > > public class CheckLogin extends TagSupport { > > > private String loginPage = "/JSP/Timeout.jsp"; > > > public void setLoginPage(String loginPage) { > this.loginPage = loginPage; > } > > public int doStartTag() throws JspException { > return (SKIP_BODY); > } > > public int doEndTag() { > try { > HttpSession session = pageContext.getSession(); > if (session != null) { > User user = (User) > session.getAttribute(SessionVariables.SESSION_LOGGED_ON_USER); > if (user == null) { > pageContext.forward(loginPage); > return (SKIP_PAGE); > } > } else { > pageContext.forward(loginPage); > return (SKIP_PAGE); > } > } catch(ServletException e) { > new JspException(e.toString()); > } catch(IOException e) { > new JspException(e.toString()); > } > return (EVAL_PAGE); > } > > } > > How to use it : > > <%@ taglib uri="/WEB-INF/cpa.tld" prefix="cpa"%> > <cpa:checkLogin/> > > Mike > > > > > |---------+----------------------------> > | | Caroline Jen | > | | <[EMAIL PROTECTED]| > | | .com> | > | | | > | | 03/11/2003 06:23 | > | | AM | > | | Please respond to| > | | "Struts Users | > | | Mailing List" | > |---------+----------------------------> > > >------------------------------------------------------------- > -----------------------------------------------------------------| > | > | > | To: [EMAIL PROTECTED] > | > | cc: > | > | Subject: Session Times Out > | > > >------------------------------------------------------------- > -----------------------------------------------------------------| > > > > > I check if session expires for each action in the > application. If the session times out, I forward the > user to index.jsp so that the user can log on again. > > How do I inform the user with a message that he/she is > at the welcome page because the session has expired? > > __________________________________ > Do you Yahoo!? > Exclusive Video Premiere - Britney Spears > http://launch.yahoo.com/promos/britneyspears/ > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > > > > > > > ************************************************************** > ****************** > The information in this message is confidential and may be legally > privileged. It is intended solely for the addressee; access to this > email by anyone else is unauthorised. > > If you are not the intended recipient: (1) you are kindly requested > to return a copy of this message to the sender indicating that you > have received it in error, and to destroy the received copy; and (2) > any disclosure or distribution of this message, as well as any action > taken or omitted to be taken in reliance on its content, is prohibited > and may be unlawful. > ************************************************************** > ****************** > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > > --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
