build.xml

<?xml version="1.0" encoding="UTF-8" ?>
<project name="ThinkAboutJava" default="clear" basedir=".">
    <description>This is a simple ant-build file</description>

    <!-- set global properties for this build -->
    <property name="src" value="src"/>
    <property name="build" value="build"/>
    <property name="dist" value="dist"/>
    <property name="lib" value="./WebContent/WEB-INF/lib"/>

    <!-- set dependencies-->
    <path id="library.dir">
        <fileset dir="${lib}">
            <include name="**/*.jar"/>
        </fileset>
    </path>

    <target name="information" description="print the build-in properties and environment settings">
        <echo message="${basedir}"/>
        <echo message="${ant.version}"/>
        <echo message="${ant.file}"/>
        <echo message="${ant.project.name}"/>
        <echo message="${ant.java.version}"/>
        <echo message="${os.name}"/>
        <!-- <property environment="env" />-->
        <!-- <echo message="${env.PATH}"></echo>-->
    </target>

    <target name="init" description="initialize the project">
        <!-- create the time stamp -->
        <tstamp/>
        <mkdir dir="${build}"/>
    </target>

    <target name="compile" depends="init" description="compile the source">
        <!-- compile the Java code from ${src} into ${build} -->
        <javac srcdir="${src}" destdir="${build}">
            <classpath refid="library.dir"/>
        </javac>
    </target>

    <target name="buildToJar" depends="compile" description="generate the distribution">
        <!-- create the distribution directory -->
        <mkdir dir="${dist}"/>
        <!-- put everything in ${build} into the ThinkAboutJava-${DSTAMP}.jar file -->
        <jar jarfile="${dist}/ThinkAboutJava-${DSTAMP}.jar" basedir="${build}"/>
    </target>

    <target name="runJar" depends="buildToJar" description="run jar file">
        <java classname="test.java.singleton.SingletonTest" classpath="${dist}/ThinkAboutJava-${DSTAMP}.jar"/>
    </target>

    <target name="clean" description="clean up">
        <!-- delete the ${build} and ${dist} directory trees -->
        <delete dir="${build}"/>
        <delete dir="${dist}"/>
        <delete dir="out"/>
    </target>

</project>