Eclipse and Tomcat questions

Hi everyone,
Lastnight I setup Eclipse to work with Tomcat, which works very good, but there are something I don't understand.
1. My files are put in my workspace in (C:\Documents and Settings\...etc)
How does Tomcat (which is installed in C:\Tomcat) know that it should get the files from my workspace directory?
Because in the C:\Tomcat directory I can't find any .XML file that refers to my workspace directory.
2. How I developed my servlets till now, I had some other free editor, I needed to compile my servlets then restart Tomcat and then test it.
With Eclipse + Tomcat plugin, all I need to do save the servlet and apparently the source code is compiled automatically. All I need to do is refresh the servlet in my browsers (very handy and easy to develop like this). But my question is, does Eclipse compile the servlet automatically after saving? And why doesn't tomcat have to be restarted?
Just a few questions to understand it a bit better, I'm really happy with this setup as it makes everything a lot easier.
Regards,
Steven.

I believe you will need to become familiar with and install:
http://www.eclipse.org/webtools/
HTH
Darins
"raul" <[email protected]> wrote in message
news:b894c367f9750f367a2e8336f8fe93b1$[email protected]..
> Hi, I downloaded the latest version of eclipse 3.1 and I've installed
> apache tomcat in mi PC.
> Eclipse has a plugin : org.eclipse.tomcat_4.1.30.1
> My problem is that I don't know how to use the tomcat server with eclipse.
> I readed some tutorials and they say that I have to configure using menu
> Window > Preferences and then I will see the tomcat option. But that
> option doesn't appears or I couldn't see it.
> Another tutorial say that I have to activate a plugin in the following
> menu location: Window > Customize Perspective > Commands and select the
> checkbox for tomcat , but that option doesn't appears either.
> What can I do, I want to use eclipse and tomcat together...
> Can someone help me with this questions?
>
> Thanks so much.
> Raul Torres
>
>
>

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(locale, home), repackaging the jar file and finally
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*I want to modify an already deployed EJB, after code
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Please teach us a simple project using above technology as its tough for many people while starting.
So please could you help the fresher?

Rameshglb wrote:
Please teach us a simple project using above technology as its tough for many people while starting.
So please could you help the fresher?There are many books on the many facets of Java enterprise technology, esp. servlets and JSPs.
There are also quite a few good web sites that can teach you about the more commonly used APIs.
If I were you, and I am glad I am not as you display no industry, I would go over to amazon.com to buy a book or coreservlets.com to do some reading.
Jaa beta. Apna aap se kaam karo.

Cannot make .war file using tomcat with eclipse and ant

i have made all necesary configuration for deploying application using eclipse and ant for the tomcat server.
when i start the server by clicking the tomcat icon on eclipse toolbar, the message is prompted that "missing application web.xml and using defaults". i have placed the web.xml file in the web/WEB-INF directory of the source project directory.
also when i use ant by right-clicking on the build.xml file and choose Run as ant.. the process creates a desired .war file in webapps folder of the tomcat server but that war file does not works.
where is the error i cannot figure out.
am attaching the code of build.xml for reference.
please help.
build.xml:-
<project name="BecilCTI" default="compile" basedir=".">
<property file="build.properties"/>
<property file="${user.home}/build.properties"/>
<property name="app.name" value="BecilCTI"/>
<property name="app.path" value="/${app.name}"/>
<property name="app.version" value="0.1-dev"/>
<property name="build.home" value="${basedir}/build"/>
<property name="catalina.home" value="c:/Tomcat_5.5"/> 
<property name="dist.home" value="${basedir}/dist"/>
<property name="docs.home" value="${basedir}/docs"/>
<property name="manager.url" value="http://localhost:8080/manager"/>
<property name="src.home" value="${basedir}/src"/>
<property name="web.home" value="${basedir}/web"/>
<property name="compile.debug" value="true"/>
<property name="compile.deprecation" value="false"/>
<property name="compile.optimize" value="true"/>

<path id="compile.classpath">

<pathelement location="${catalina.home}/common/classes"/>
<fileset dir="${catalina.home}/common/endorsed">
<include name="*.jar"/>
</fileset>
<fileset dir="${catalina.home}/common/lib">
<include name="*.jar"/>
</fileset>
<pathelement location="${catalina.home}/shared/classes"/>
<fileset dir="${catalina.home}/shared/lib">
<include name="*.jar"/>
</fileset>
</path>
<target name="all" depends="clean,compile"
description="Clean build and dist directories, then compile"/>
<target name="clean"
description="Delete old build and dist directories">
<echo message="Cleaning all dirs."/>
<delete dir="${build.home}"/>
<delete dir="${dist.home}"/>
</target>
<target name="compile" depends="prepare"
description="Compile Java sources">

<mkdir dir="${build.home}/WEB-INF/classes"/>
<javac srcdir="${src.home}"
destdir="${build.home}/WEB-INF/classes"
debug="${compile.debug}"
deprecation="${compile.deprecation}"
optimize="${compile.optimize}">
<classpath refid="compile.classpath"/>
</javac>

<copy todir="${build.home}/WEB-INF/classes">
<fileset dir="${src.home}" excludes="**/*.java"/>
</copy>
</target>
<target name="dist" depends="compile"
description="Create binary distribution">


<jar jarfile="${catalina.home}/webapps/${app.name}.war"
basedir="${build.home}"/>

</target>
<target name="install" depends="compile"
description="Install application to servlet container">
<deploy url="${manager.url}"
username="${manager.username}"
password="${manager.password}"
path="${app.path}"
localWar="file://${build.home}"/>
</target>
<target name="list"
description="List installed applications on servlet container">
<list url="${manager.url}"
username="${manager.username}"
password="${manager.password}"/>
</target>
<target name="prepare">

<mkdir dir="${build.home}"/>
<mkdir dir="${build.home}/WEB-INF"/>
<mkdir dir="${build.home}/WEB-INF/classes"/>

<copy todir="${build.home}">
<fileset dir="${web.home}"/>
</copy>
<mkdir dir="${build.home}/WEB-INF/lib"/>
</target>
<target name="reload" depends="compile"
description="Reload application on servlet container">
<reload url="${manager.url}"
username="${manager.username}"
password="${manager.password}"
path="${app.path}"/>
</target>
<target name="remove"
description="Remove application on servlet container">
<undeploy url="${manager.url}"
username="${manager.username}"
password="${manager.password}"
path="${app.path}"/>
</target>
</project>

So is context.xml actually overwriting the settings found in server.xml?I think so. The way I understand it is the the context.xml file saves you from having to edit server.xml. It is preferred for each web app to do its own config, rather than lumping them all together in server.xml.
And what would be the best way to create the war file? IAt its heart, a WAR is just a zip file with its contents laid out in according to the specification of a web application directory structure.
So the simplest way to make a war file is to zip up your directory structure with a tool like winzip, and rename it to be myApp.war.
Regarding ant, I would recommend you take a look through [url http://jakarta.apache.org/tomcat/tomcat-4.1-doc/appdev/index.html
]this tutorial. It explains the basics of website layout, configuration and deployment.
On [url http://jakarta.apache.org/tomcat/tomcat-4.1-doc/appdev/source.html] this page in particular, it includes a link to a basic ant file that you can use as a starting point.
Cheers,
evnafets

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I'm using Eclipse 3.0.2 to do my development work on my JSP pages. So normally I will just create my Tomcat(5.5 on JDK5.0) project using Sysdeo(tm) plugin in its default directory (C:\eclipse\workspace\mytomcatproject).
Then I would begin creating my JSPs and use JSTL(1.1.2) for my development. I'd put those standard.jar/jstl.jar into /WEB-INF/lib as recommended.
The problem is I can't seem to get JSTL library working, even I tried out copy and pasting the example code into my pages.
I have :
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<%@ taglib prefix="fn" uri="http://java.sun.com/jsp/jstl/functions" %>
... //some code
${fn:escapeXml(param["myreq"])} will show out in the JSP exactly "${fn:escapeXml(param["myreq"])}" without processing. Although no runtime errors comes out (meaning the TOMCAT successfully loaded the library) but seems that the taglib is not working!!!
I did some experiments:
Experiment 1 :-
<%@ taglib prefix="c" uri="http://java.sun.com/jstl/core" %>
(notice the uri, its without /jsp)
and it works for /core taglib, but not the /functions taglib. Meaning somewhere in the TOMCAT library it load the older 1.0 version of JSTL.
When I try using the /functions taglib
<%@ taglib prefix="fn" uri="http://java.sun.com/jstl/functions" %>
TOMCAT will complaint about the non-existence of this JSTL.
Experiment 2 :-
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Doesn't work as well!!! The taglib just didn't get process.
Experiment 3 :-
I tried to modify the <Context> in server.xml to include tldNameAware and tldValidation to TRUE.
Not Working as well!!!
Experiment 4 :-
I comment out the <my_tomcat_home>/conf/server.xml <Context> (the one that Eclipse created for my Tomcat project) and directly paste my project directory into <my_tomcat_home>/webapps and restarted my TOMCAT.
IT WORKS!!!
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Any idea how to make it work outside the Tomcat webapps cause I try to encourage my team to use Eclipse and CVS.

The probable cause of the issue is your web.xml file.
If your web.xml file is declared as being servlet version 2.3, then it disables the JSTL expression language (EL) by default.
ie if you have this:
<?xml version="1.0"?>
<!DOCTYPE web-app PUBLIC
   "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
   "http://java.sun.com/dtd/web-app_2_3.dtd">
<web-app>It should change to be this:
<?xml version="1.0" encoding="ISO-8859-1"?>
<web-app xmlns="http://java.sun.com/xml/ns/j2ee"
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JSTL needs no tld files, and no entries in web.xml to make it work.
Hope this helps,
evnafets

Difference between Eclipse and Apache Tomcat?

Can anyone let me know difference between these two? or give me a website link where i can find comparison of the two?I want to work on JAVA+Web services, so what is best bet for me to work with?

eat your pizza then getinto car.or get into car ,
reach the moon and then eat your pizza there.you see
both are usefull somehow.well i asked as i dint know
much about this stuff, so instead of making fun you
could have helped me a bit. no?MAybe you could have just taken the sarcasm as what it was and yould have tried to find out what to use Eclipse and what to use Tomcat for... if you can't tell the terms "deleopment environment" and "servlet container" apart, writing servlets might still be too big a task for your present state of knowledge.

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