What to do with edited servlet.

[Michele Smith]

Hello I have an existing servlet in Eclipse that needs to be edited.

I have edited the servlet.

What do I do now to get the servlet to do its thing? Do I need to compile it?

Redistribute it?

I am unsure as to what to do with it. Using Apache Tomcat server 6.0.x

Thanks,
Michele

[Koen Aerts]

Does the project not come with a build file, for instance build.xml for ANT, or something like it? The deployment details should be in there.

A servlet is really nothing more than a normal Java class file, so yes just like any other .java source files it needs to be recompiled. How it is "distributed" depends on the actual application it is part of. You'll need to look at how the application is currently set up on the web or app server (i.e. Tomcat, JBoss, Websphere, ...). Most likely it will either be sitting as a .class (compiled file) somewhere under the WEB-INF/classes directory in your web app work directory, or somewhere inside a jar file under WEB-INF/lib, or inside a war file. Jar and war files are essentially nothing more than zip files.

[Michele Smith]

There's nothing inside the WEB-INF directory that has the words *.class

I am also having trouble deploying to a server, there is already an instance of Jakarta on the machine. I guess I will uninstall that and reinstall regular old Apache Tomcat.

I would like to do what is required to the servlet and redistribute it but I am unsure as to how to do this. I have the build automatically checked.

I notice the previous developer has a build directory but nothing is in it.

Any thoughts?

Thanks, Michele

[Jayesh A Lalwani]

Like Koen said, there are many ways of deploying the servlet. You should do the same thing that the previous developer was doing. You should either ask the previous developer or look at the deployment scripts that s/he has already implemented.

If you have the deployment scripts, you can post them here, and people can help you reverse engineer them. Given what you have told us until now, there is not enough information

[Michele Smith]

I do see a script, utilizing ant. I am including the code here

<?xml version="1.0"?>
<project name="blah Packages" default="compile">

	<!--
	***************************************************************************
	* Ant build script.
	* Usage:
	*   ant
	*			with no arguments, compiles packages.
	*

	***************************************************************************
	-->

	<!--
	***************************************************************************
	* Indicate the root source folder.
	***************************************************************************
	-->
	<property name="src.dir" value="D:/blah/src" />


	<!--
	***************************************************************************
	* To compile classes to the same folder as the sources, set dest.dir=".";
	* otherwise, set it the the root of the class hierarchy.
	***************************************************************************
	-->
	<property name="dest.dir" value="D:/blah/Web-inf/classes" />


	<!--
	***************************************************************************
	* Include all .jar files in the jars folder in the CLASSPATH during
	* compilation.
	***************************************************************************
	-->
	<path id="class.path">
		<fileset dir="${src.dir}/../jars">
			<include name="*.jar"/>
		</fileset>
	</path>


	<!-- Files to include/exclude when compiling package. -->
	<patternset id="src.files">
		<include name="bcc/**/*.java"/>
		<exclude name="**/obsolete/**"/>
	</patternset>


	<!-- Class files to clear for clear and recompiled tasks. -->
	<fileset id="dest.files" dir="${dest.dir}">
		<include name="bcc/**/*.class"/>
	</fileset>


	<!-- Javadoc definitions. -->
	<property name="doc.title" value="blah Packages"/>
	<property
		name="doc.packagenames"
		value="bcc.actions, bcc.lib, bcc.lib.dob, bcc.pages"
	/>


	<!--
	***************************************************************************
	* Compile all .java files in the package.
	* Note: src.dir, dest.dir and class.path are defined above.
	***************************************************************************
	-->
	<target name="compile">
		<javac srcdir="${src.dir}" destdir="${dest.dir}" deprecation="on">
			<classpath refid="class.path"/>
			<patternset refid="src.files"/>
		</javac>
	</target>


	<target name="clear">
		<delete>
			<fileset refid="dest.files" />
		</delete>
		<mkdir dir="${dest.dir}" />
	</target>

	<target name="recompile" depends="clear,compile"/>


	<!--
	***************************************************************************
	* Generate documentation for package.
	* Note: src.dir and class.path are defined above.
	***************************************************************************
	-->
	<target name="doc" depends="compile">
		<mkdir dir="./docs" />
		<javadoc
			sourcepath="${src.dir}"
			destdir="./docs"
			packagenames="${doc.packagenames}"
			classpathref="class.path"
			private="off"
			protected="on"
			public="off"
			version="on"
			use="on"
			author="on"
			windowtitle="${doc.title}"
			doctitle="<H1>${doc.title}</H1>"
			header="blah blah blah"
			nohelp="on"
		/>
	</target>


</project>

I am attaching a screen shot of the servlet.

Lemme know, thanks, Michele

[Peter Johnson]

I appears that the Ant build script you posted should compile the servlet and add it to the WEB-INF/classes directory. The build, however, does not create a WAR file so I assume that the app will be deployed in its exploded form to Tomcat.

I assume that you obfuscated the values of src.dir and dest.dir. If the dest.dir is within your project's directory, then you will have to still copy the entire WAR contents to to the Tomcat/webapps directory. Unfortunately, because of the directory name obfuscation, I cannot tell you exactly what to copy over (based on dest.dir value, it would be the contents of d:/blah, expect that I would not expect to see src within that directory, as given in src.dir)

[Michele Smith]

I am not sure I understand, can you break this down more for me?

Thanks,
Michele

[Jayesh A Lalwani]

Just run ant recompile and see if it works.

[Peter Johnson]

I cannot be any clearer because of lines 20 and 29 in the build.xml file you posted. The values (directory locations)) make no sense to me. Are those the correct directory locations or did you change them before posting? If you changed them, could you either post the real directory names or do a better job of changing the names.

For example, one of my projects has these directories:

src.dir = d:/opt/workspace/helloweb/src

dest.dir = d:/opt/workspace/helloweb/webapp/WEB-INF/classes

Note that if I would have changes the name the same way you did, then in line 20 the "blah" would be "/opt/workspace/helloweb" while in line 29 the "blah" is "/opt/workspace/helloweb/webapp". Now, I would line to tell you to copy "blah" to some location, but if I tell you that, you won't know whether I mean /opt/workspace/helloweb or /opt/workspace/helloweb/webapp.

[Michele Smith]

Ok thanks, but what is the relationship of these directories to the project itself? Does this match the project directories or is it a different place where they point to.

Also, I do not have a server installed on this, I am using JDK 1.5 and have been trying to download jboss 4.2.2 to configure with this.

My screenshot is like this, showing me the server is not installed.

I believe this means that I cannot compile anything without a server, right?

I inherited this from someone else and am having trouble sorting it all out. Any help is greatly appreciated. thanks!

Thanks,
Michele