webapp runs on Sun AS, not on SunONE 6.1SP5 ?

From:

Lion-O <nosp@m.catslair.org>

Newsgroups:

comp.lang.java.help

Date:

Tue, 16 May 2006 21:18:10 -0000

Message-ID:

<slrne6kge5.5bh.nosp@linux.intranet.lan>

Hi there,

I'm very new when it comes to Java Enterprise programming so I tried following
a few examples which guided me in setting up a web application using Netbeans.
My "application" consist of 2 .jsp pages and one supporting java class. The
index.jsp asks the user to enter his name, then the second page displays the
given name.

When I finish and run this project it works perfectly on the Sun Application
Server 8.2 (Platform Edition, the one shipped with J2EE 1.4) but when I try to
deploy the .war file to the SunONE server I get an error during deployment:

[https-magi.intranet.lan]: info ( 1290): WEB0100: Loading web module in virtual
server [www.intranet.lan] at [/intraApp]
[https-magi.intranet.lan]: failure ( 1290): ContextConfig[/hello] WEB3524:
Parse error in application web.xml
org.xml.sax.SAXParseException: Element type "web-app" is not declared. at
org.apache.crimson.parser.Parser2.error(Parser2.java:3354) at
org.apache.crimson.parser.Parser2.maybeElement(Parser2.java:1502) at
org.apache.crimson.parser.Parser2.parseInternal(Parser2.java:667) at
org.apache.crimson.parser.Parser2.parse(Parser2.java:337) at
org.apache.crimson.parser.XMLReaderImpl.parse(XMLReaderImpl.java:448) at
org.xml.sax.helpers.XMLReaderAdapter.parse(XMLReaderAdapter.java:223) at
javax.xml.parsers.SAXParser.parse(SAXParser.java:314) at
javax.xml.parsers.SAXParser.parse(SAXParser.java:89) at

---<Cut>---

Well, first hint would ofcourse be 'web.xml' which is seemingly missing an
element type ("web-app") but as you can see below its actually declared.

So now I'm wondering if there are any specific differences between the two
servers which I should keep in mind. I did notice that SunONE supports JDK
1.4.1_03 so I do understand as much that using specific JDK 1.5 methods are
likely to fail (my netbeans environment uses 1.5). But from what I read so far
its my understanding that it shouldn't be a problem to use JDK 1.5 to create
applications for a 1.4 platform as long as you don't use these specific
methods.

For the record I'll include my demo files here, the whole structuring of the
..war file is something I left in the hands of Netbeans for now. I think its
safe to conclude that it does a good job, I conclude as much that the
application runs as expected on the Sun Application server.

Thanks in advance for any comments....

--=[ web.xml - note: long lines have been cut with \ ]=--

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://java.sun.com/xml/ns/j2ee"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com \
/xml/ns/j2ee/web-app_2_4.xsd"
  version="2.4">

  <session-config>
    <session-timeout>
    30
    </session-timeout>
  </session-config>

  <welcome-file-list>
    <welcome-file>
    index.jsp
    </welcome-file>
  </welcome-file-list>
</web-app>

--=[ EOF ]=--

And here is the actual program:

--=[ index.jsp ]=--

<%@page contentType="text/html"%>
<%@page pageEncoding="UTF-8"%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
   "http://www.w3.org/TR/html4/loose.dtd">

<html>
<head>
  <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
  <title>Name request form</title>
</head>
<body>
  <h1>Please tell us your name...</h1>
  <form name="form1" action="response.jsp">
  Please enter your name: <input type="text" name="name" value="" />
  <input type="submit" value="GO" />
</body>
</html>

--=[ EOF ]=--

--=[ response.jsp ]=--

.... (see above example for everything in the head)

<body>
  <h1>We've caught your name...</h1>
  <jsp:useBean id="mybean" scope="page" class="org.catslair.GetName" />
    <jsp:setProperty name="mybean" property="name" />
      Your name is <jsp:getProperty name="mybean" property="name" /> !
</body>
</html>

--=[ EOF ]=--

And finally the supporting Java class:

--=[ GetName.java ]=--

package org.catslair;

public class GetName {

  private String name;

  public GetName() {
    setName(null);
  }

  public String getName() {
    return name;
  }

  public void setName(String name) {
    this.name = name;
  }
} // end of class

--=[ EOF ]=--

--
Groetjes, Peter

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