April 2005
Intermediate to advanced
336 pages
7h 20m
English
The jar task JARs files
for you. Example 3-4 is a
fairly complex example, which creates a new JAR file with an included
manifest, MANIFEST.MF, that contains several
attributes.
Example 3-4. Using the jar task (ch03/jar/build.xml)
<?xml version="1.0" ?>
<project default="main">
<property name="message" value="Building the .jar file." />
<property name="src" location="source" />
<property name="output" location="bin" />
<target name="main" depends="init, compile, compress">
<echo>
${message}
</echo>
</target>
<target name="init">
<mkdir dir="${output}" />
</target>
<target name="compile">
<javac srcdir="${src}" destdir="${output}" />
</target>
<target name="compress">
<jar destfile="${output}/Project.jar" basedir="${output}"
includes="*.class" >
<manifest>
<attribute name="Author" value="${user.name}"/>
<section name="Shared">
<attribute name="Title" value="Example"/>
<attribute name="Vendor" value="MegaAntCo"/>
</section>
<section name="Copyright">
<attribute name="Copy" value="(C) MegaAntCo 2005"/>
</section>
</manifest>
</jar>
</target>
</project>The created JAR file contains Project.class and MANIFEST.MF; this latter file contains these contents:
Manifest-Version: 1.0 Ant-Version: Apache Ant 1.6.1 Created-By: 1.4.2_03-b02 (Sun Microsystems Inc.) Author: Steven Holzner Name: Shared Title: Example Vendor: MegaAntCo Name: Copyright Copy: (C) MegaAntCo 2005
Want to sign your JAR file for distribution? Use the jarsign task like this:
<signjar jar="jarfile.jar" alias="development" ...