《Ant权威指南》笔记（一）

http://www.cnblogs.com/pixy/p/4792887.html

创建一个用于编译和打包Java项目的配置文件build.xml（名字可以随便起，如mybuild.xml，执行的时候用-f 选项指定这个文件就可以）：

<?xml version="1.0" encoding="UTF-8" ?>
<project name="AntDemo" default="compile" basedir=".">
    <property name="src.dir" value="src" />
    <property name="build.dir" value="build" />
    <property name="build.classes" value="${build.dir}/classes" />
    <property name="build.lib" value="${build.dir}/lib"/>
    
    <target name="prepare"  description="create the build directories prior to the comile target">
        <mkdir dir="${build.dir}" />
        <mkdir dir="${build.classes}" />
        <mkdir dir="${build.lib}" />
    </target>
    
    <target name="clean" description="removes all generated files">
        <delete dir="${build.dir}" />
    </target>
    
    <target name="compile" depends="prepare" description="compiles all source code">
        <javac srcdir="${src.dir}" destdir="${build.classes}" />
    </target>
    
    <target name="jar" depends="compile" description="generates jar file ">
        <jar jarfile="${build.lib}/antDemo.jar" basedir="${build.classes}"  excludes="**/*Test.class"/>
    </target>

    <target name="all" depends="clean, jar" description="clean, compile, generate jar file"/>
</project>