Ant编译（build.xml）

<?xml version="1.0" encoding="UTF-8"?>
<!-- default="build" 意思是执行到build这一步 -->
<project name="dispatcher" basedir="." default="build">
<!--Tomcat安装目录， 根据实际情况修改 -->
<property name="tomcat.home" value="D:/apache-tomcat-6.0.35" />
<!-- Tomcat工作目录 -->
<property name="web.root" value="D:/webapps" />
<!-- 项目名称 -->
<property name="app.name" value="WebDispatcher" />
<property name="src.dir" value="src" />
<property name="classes.dir" value="WebContent/WEB-INF/classes" />
<property name="lib.dir" value="WebContent/WEB-INF/lib" />

<target name="clean" description="clean application">
<echo message="----------delete application----------" />
<delete dir="${web.root}/${app.name}" />
<delete file="${web.root}/${app.name}.war" />
<delete file="${app.name}.war" />
<delete dir="${classes.dir}" />
</target>

<path id="classpath">
<fileset dir="${lib.dir}" includes="**/*.jar" />
<fileset dir="${lib.dir}" includes="**/*.zip" />
<fileset dir="" includes="**/*.jar" />
<fileset dir="${tomcat.home}/lib" includes="**/*.jar" />
</path>
<target name="compile" depends="clean" description="compile java files">
<mkdir dir="${classes.dir}" />
<javac encoding="utf-8" debug="true" fork="yes" listfiles="yes" memoryinitialsize="128m" memorymaximumsize="256m" srcdir="${src.dir}" destdir="${classes.dir}" includes="**/*.java" includeantruntime="build.sysclasspath=last">
<classpath refid="classpath" />
</javac>
<copy todir="${classes.dir}">
<fileset dir="${src.dir}" excludes="**/*.java">
</fileset>
</copy>
</target>

<!-- 记得前面的 default="build"么？对！就是这个build ，这些target通过depends关联起来，一步步顺序执行，应该很清楚，很明白吧 -->
<target name="build" depends="compile" description="make war">
<war destfile="../${app.name}.war" basedir="WebContent" webxml="WebContent/WEB-INF/web.xml">
<classes dir="${classes.dir}" />
</war>
</target>

<target name="deploy" depends="build" description="deploy project in tomcat">
<echo message="----------deploy project----------" />
<copy todir="${web.root}">
<fileset dir="../">
<include name="${app.name}.war" />
</fileset>
</copy>
</target>

<target name="desc" depends="deploy" description="unpack war">
<echo message="----------unpack war----------" />
<exec executable="jar" dir="${web.root}">
<arg value="xvf" />
<arg value="${app.name}.war" />
</exec>
</target>

<target name="startup" depends="deploy" description="startup tomcat">
<echo message="----------start tomcat----------" />
<exec executable="cmd" dir="${tomcat.home}/bin">
<arg value="/c" />
<arg value="startup.bat" />
</exec>
</target>

<target name="shutdown" description="shutdown tomcat">
<echo message="----------close tomcat----------">
</echo>
<exec executable="cmd" dir="${tomcat.home}/bin">
<arg value="/c" />
<arg value="shutdown.bat" />
</exec>
</target>
</project>