RE: checkLogonTag question
Hi John, You seem to have a number of problems. Firstly, you are checking for a logon on the logon page. As you want yet have a logon you will simply be returned to the same page. Not what you want ! Remove the checkLogon tag from your logon page ! Jon -Original Message- From: John McClain [mailto:[EMAIL PROTECTED]] Sent: 21 June 2001 19:05 To: [EMAIL PROTECTED] Subject: checkLogonTag question Howdy, I took the example app, gutted it, and am trying to piece it all together manually so that I understand what is going on. All was going well till I got to the tag app:checkLogon/. When I tried to bring up logon.jsp, I got into an infinite error loop. I am enclosing the jsp page, the checklogontag.java AND the error output. Without the checklogontag, the app works fine. It really is very simple at this point. Is there anyone out there that can explain why the error AND, in the example app, why the app:checkLogon/ is enclosed within a logic:equal tag? - does it have to be??? - the code doesn't seem to suggest that, but I am getting this error... help! ** logon.jsp %@ page language=java % %@ taglib uri=/WEB-INF/app.tld prefix=app % %@ taglib uri=/WEB-INF/struts-html.tld prefix=html % html:errors/ app:checkLogon/ Logon with username test and password test.br /br / html:form action=logon.do Username: html:text property=username /br / Password: html:password property=password /br / html:submit value=Logon / /html:form ** CheckLogonTag.java /* * $Header: /home/cvspublic/jakarta-struts/src/example/org/apache/struts/example/CheckLogonTag.java,v 1.5 2001/02/02 02:26:06 craigmcc Exp $ * $Revision: 1.5 $ * $Date: 2001/02/02 02:26:06 $ * * * * The Apache Software License, Version 1.1 * * Copyright (c) 1999 The Apache Software Foundation. All rights * reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * * 3. The end-user documentation included with the redistribution, if * any, must include the following acknowlegement: * This product includes software developed by the * Apache Software Foundation (http://www.apache.org/). * Alternately, this acknowlegement may appear in the software itself, * if and wherever such third-party acknowlegements normally appear. * * 4. The names The Jakarta Project, Tomcat, and Apache Software * Foundation must not be used to endorse or promote products derived * from this software without prior written permission. For written * permission, please contact [EMAIL PROTECTED]. * * 5. Products derived from this software may not be called Apache * nor may Apache appear in their names without prior written * permission of the Apache Group. * * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * * This software consists of voluntary contributions made by many * individuals on behalf of the Apache Software Foundation. For more * information on the Apache Software Foundation, please see * http://www.apache.org/. * */ package logon; import java.io.IOException; import javax.servlet.http.HttpSession; import javax.servlet.jsp.JspException; import javax.servlet.jsp.JspWriter; import javax.servlet.jsp.PageContext; import javax.servlet.jsp.tagext.TagSupport; import org.apache.struts.action.Action; import org.apache.struts.util.BeanUtils; import org.apache.struts.util.MessageResources; /** * Check for a valid User logged on in the current session. If there is no * such user, forward control to the logon page. * * @author Craig R. McClanahan * @author Marius Barduta * @version $Revision: 1.5 $ $Date: 2001/02/02 02:26
checkLogonTag question
Howdy,
I took the example app, gutted it, and am trying to
piece it all together manually so that I understand what is going on. All was
going well till I got to the tag app:checkLogon/. When I tried to bring
up logon.jsp, I got into an infinite error loop. I am enclosing the jsp page,
the checklogontag.java AND the error output. Without the checklogontag, the app
works fine. It really is very simple at this point.
Is there anyone out there that can explain why the
error AND, in the example app, why the app:checkLogon/ is enclosed
within a logic:equal tag? - does it have to be??? - the code doesn't
seem to suggest that, but I am getting this error...
help!
**
logon.jsp %@ page language="java" %
%@ taglib uri="/WEB-INF/app.tld" prefix="app"
%%@ taglib uri="/WEB-INF/struts-html.tld" prefix="html"
%html:errors/app:checkLogon/Logon with
username "test" and password "test".br /br /
html:form
action="logon.do"
Username: html:text
property="username" /br /Password:
html:password property="password" /br
/html:submit value="Logon"
//html:form
**
CheckLogonTag.java /** $Header:
/home/cvspublic/jakarta-struts/src/example/org/apache/struts/example/CheckLogonTag.java,v
1.5 2001/02/02 02:26:06 craigmcc Exp $* $Revision: 1.5 $*
$Date: 2001/02/02 02:26:06 $**
**
The Apache Software License, Version 1.1** Copyright (c)
1999 The Apache Software Foundation. All rights*
reserved.** Redistribution and use in source and binary
forms, with or without* modification, are permitted provided that the
following conditions* are met:** 1.
Redistributions of source code must retain the above
copyright* notice, this list of conditions and the
following disclaimer.** 2. Redistributions in binary form
must reproduce the above copyright* notice, this
list of conditions and the following disclaimer in*
the documentation and/or other materials provided with
the* distribution.** 3. The
end-user documentation included with the redistribution,
if* any, must include the following
acknowlegement:* "This product
includes software developed by
the* Apache Software
Foundation (http://www.apache.org/)."*
Alternately, this acknowlegement may appear in the software
itself,* if and wherever such third-party
acknowlegements normally appear.** 4. The names "The Jakarta
Project", "Tomcat", and "Apache Software*
Foundation" must not be used to endorse or promote products
derived* from this software without prior written
permission. For written* permission, please contact
[EMAIL PROTECTED].**
5. Products derived from this software may not be called
"Apache"* nor may "Apache" appear in their names
without prior written* permission of the Apache
Group.** THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY
EXPRESSED OR IMPLIED* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE ARE* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE
FOUNDATION OR* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL,* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
BUT NOT* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
OF* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
AND* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
LIABILITY,* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY
WAY OUT* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF* SUCH DAMAGE.*
**
This software consists of voluntary contributions made by many*
individuals on behalf of the Apache Software Foundation. For
more* information on the Apache Software Foundation, please
see* http://www.apache.org/.**/
package logon;
import java.io.IOException;import
javax.servlet.http.HttpSession;import
javax.servlet.jsp.JspException;import javax.servlet.jsp.JspWriter;import
javax.servlet.jsp.PageContext;import
javax.servlet.jsp.tagext.TagSupport;import
org.apache.struts.action.Action;import
org.apache.struts.util.BeanUtils;import
org.apache.struts.util.MessageResources;
/*** Check for a valid User logged on
in the current session. If there is no* such user, forward
control to the logon page.** @author Craig R.
McClanahan* @author Marius Barduta* @version $Revision: 1.5
$ $Date: 2001/02/02 02:26:06 $*/
public final class CheckLogonTag extends TagSupport
{
//
--- Instance
Variables
/** * The key of the session-scope bean we look
for. */ private String name =
Constants.USER_KEY;
/** * The page to which we should forward for the
user to log on. */ private
String page = "/logon.jsp";
//
---
Properties
/** * Return the bean
name. */ public String
getName() {
