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Ant Properties File
I
am using the Spring SimpleFormController example to illustrate
the build process. The figure below shows the structure of the
web application
All the classes inside the src directory should be compiled and
placed in a separate build/classes directory. The created war file
will be placed inside the dist directory.
So first we create the build/classes and the dist directory. The
init target does this job.
<target
name="init">
<mkdir
dir="build/classes"/>
<mkdir
dir="dist" />
</target>
The next step is to compile all the classes in the src directory
and place them in the build/classes directory. To do this first
you need to add all the lib files inside the "WebContent/WEB-INF/lib"
directory to the classpath.
<path
id="compile.classpath">
<fileset
dir="WebContent/WEB-INF/lib">
<include
name="*.jar"/>
</fileset>
</path>
The target compile uses the javac task to compile the java classes
and it depends on the target init, because only when you have the
directory ready you can place the classes inside them.
<target
name="compile" depends="init" >
<javac
destdir="build/classes" debug="true" srcdir="src">
<classpath
refid="compile.classpath"/>
</javac>
</target>
The path we created earlier will be refered here using the <classpath>
element.
Now we can create the war file using the war task. To create the
war file you need to specify the web directory, lib directory and
the classes directory. The destfile attribute specifies the war
file location and the webxml attribute specifies the web.xml file
location.
<target
name="war" depends="compile">
<war
destfile="dist/AntExample.war" webxml="WebContent/WEB-INF/web.xml">
<fileset
dir="WebContent"/>
<lib
dir="WebContent/WEB-INF/lib"/>
<classes
dir="build/classes"/>
</war>
</target>
You can use the clean target to clean the project. The clean target
deletes the build and the dist directory.
<target
name="clean">
<delete
dir="dist" />
<delete
dir="build" />
</target>
The complete build.xml file is shown below.
<?xml
version="1.0" ?>
<project
name="AntExample1" default="war">
<path
id="compile.classpath">
<fileset
dir="WebContent/WEB-INF/lib">
<include
name="*.jar"/>
</fileset>
</path>
<target
name="init">
<mkdir
dir="build/classes"/>
<mkdir
dir="dist" />
</target>
<target
name="compile" depends="init" >
<javac
destdir="build/classes" debug="true" srcdir="src">
<classpath
refid="compile.classpath"/>
</javac>
</target>
<target
name="war" depends="compile">
<war
destfile="dist/AntExample.war" webxml="WebContent/WEB-INF/web.xml">
<fileset
dir="WebContent"/>
<lib
dir="WebContent/WEB-INF/lib"/>
<classes
dir="build/classes"/>
</war>
</target>
<target
name="clean">
<delete
dir="dist" />
<delete
dir="build" />
</target>
</project>
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