Forum:

setting title in web.xml

Aravind Prasad

Ranch Hand

Posts: 265

posted 9 years ago

Dear Ranchers,
I'm doing a project in JSP and MySQL. In each and every page, instead of giving the title for the html page, is there any way to put the title in web.xml, so that Even if I want to change the title, i can just edit in the web.xml, so that it can reflect other pages also..

Please help me with your enriched ideas.

Regards

Aravind Prasad

Chris Corbyn

Ranch Hand

Posts: 114

posted 9 years ago

I create screen.xml files for this... one per-screen in, for example /WEB-INF/screens/documentation/contents.xml:

Now just use XPath to query what you need. I have a ScreenFactory object which creates a simple bean from the configuration. I also store 'fragments', CSS files, JS files and Meta data in here.

Aravind Prasad

Ranch Hand

Posts: 265

posted 9 years ago

Dear Chris,
Thanks for the reply.. But Can you please make it clear..

I will create scree.xml file in WEB-INF and then how will i call in the index.jsp page.?

Please explain for me in details with some sample codings if you can.

Regards

Aravind Prasad

Ben Souther

Sheriff

Posts: 13411

I like...

posted 9 years ago

One simple way to do this is to create a context init param in web.xml and use that for your title.

Are you familiar with context-init params?

Java API J2EE API Servlet Spec JSP Spec How to ask a question... Simple Servlet Examples jsonf

Bear Bibeault

Author and ninkuma
Marshal

Posts: 65826

134

I like...

posted 9 years ago

I'd avoid setting up something proprietary to do this.

Either use context parameters as Ben suggested, or if you need something a little robust, properties files with the JSTL fmt tags.

[Asking smart questions] [About Bear] [Books by Bear]

Aravind Prasad

Ranch Hand

Posts: 265

posted 9 years ago

Thanks for the reply..

I'm not that much familiar with Context init params. Please send me a sample code for that.

Thanks/Regards

Aravind Prasad

Bear Bibeault

Author and ninkuma
Marshal

Posts: 65826

134

I like...

posted 9 years ago

Context init params can be used in the EL via the initParam builtin map:

${initParam.pageTitle}

Setting one up in the web.xml is as easy as:

[ September 10, 2007: Message edited by: Bear Bibeault ]

[Asking smart questions] [About Bear] [Books by Bear]

Aravind Prasad

Ranch Hand

Posts: 265

posted 9 years ago

Thankyou Bear,
I have done the script like this

WEB-INF\web.xml

In the index.jsp page I have done like this

index.jsp

But I'm getting the following Error messagem when i run the program

type Exception report
 
message 
 
description The server encountered an internal error () that prevented it from fulfilling this request.
 
exception 
 
org.apache.jasper.JasperException: Unable to compile class for JSP
 
An error occurred at line: 4 in the jsp file: /index.jsp
Generated servlet error:
Syntax error on token "$", AssignmentOperator expected after this token
 
An error occurred at line: 4 in the jsp file: /index.jsp
Generated servlet error:
Syntax error, insert ";" to complete Statement

org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:510)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:375)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)

root cause 
 
org.apache.jasper.JasperException: Unable to compile class for JSP
 
An error occurred at line: 4 in the jsp file: /index.jsp
Generated servlet error:
Syntax error on token "$", AssignmentOperator expected after this token
 
An error occurred at line: 4 in the jsp file: /index.jsp
Generated servlet error:
Syntax error, insert ";" to complete Statement

org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:84)
org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:328)
org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:414)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:297)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:276)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:264)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:563)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:303)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)

note The full stack trace of the root cause is available in the Apache Tomcat/5.5.17 logs.

Please help me, to find a solution for this

Regards
Aravind Prasad

Muhammad Saifuddin

Ranch Hand

Posts: 1325

I like...

posted 9 years ago

EL (Expression Language) is must configured in your web.xml file in order to using it jsp pages.

this url will help you to configure it.. ServletsWebXml

hope it helps..
[ September 11, 2007: Message edited by: Saif uddin ]

Saifuddin..
[Blog][Linkedin] How To Ask Questions On JavaRanch My OpenSource

Bear Bibeault

Author and ninkuma
Marshal

Posts: 65826

134

I like...

posted 9 years ago

<title>
<% ${initParam.pageTitle} %>
</title>

You do not use <% and %> when using the EL.

[Asking smart questions] [About Bear] [Books by Bear]

Aravind Prasad

Ranch Hand

Posts: 265

posted 9 years ago

Dear Mr.Bear,
Thanks for the reply..
Even if i'm not using the <% and %>....

I'm getting te error message..

Please advise..

Regards

Aravind Prasad

Ben Souther

Sheriff

Posts: 13411

I like...

posted 9 years ago

What error message are you getting now?

Java API J2EE API Servlet Spec JSP Spec How to ask a question... Simple Servlet Examples jsonf