弄个build.xml玩玩

<?xml version="1.0"  encoding="GB2312" ?>
<project name="projectname" default="war" basedir=".">
 <!--
  ===================================================================
  定义属性（property tasks）
  最好把用到的路径呀，名称呀都在这里定义成全局变量
  例：定义
  <property name="a" value="hello"/>
  以后就可以这样用它：
  <property name="b" value="${a}/b"/>
  现在:b=="hello/b"
  ===================================================================
 -->
 <!--主要的系统环境属性-->
 <property environment="env" /><!--取window,unix...的环境变量-->
 <property name="java.home" value="${env.JAVA_HOME}" />
 <!--主要的app环境属性-->
 <property name="app.name" value="yourappname" />
 <property name="app.jar" value="${app.name}.jar" />
 <property name="app.war" value="${app.name}.war" />
 <property name="app.copyright"
  value=" Copyright (c) 2010 GLOBAL-SAFETY Software Foundation.  All rights reserved." />
 <!--app中src的属性-->
 <property name="src.dir" value="src" />
 <property name="classSavePath" value="web/WEB-INF/classes" />
 <!--app用到的lib-->
 <property name="lib.dir" value="web/WEB-INF/lib" />
 <!--app的build目录中-->
 <property name="build.dir" value="./output" />
 <property name="build.classes" value="${build.dir}/classes" />
 <property name="build.lib" value="web/WEB-INF/lib" />
 <property name="war.dir" value="${build.dir}/war" />
 <property name="warsource.dir" value="web" />
 <!--
  定义一组路径以后可以通过id重用这组路径 ，例：
  <javac srcdir="src/main" destdir="build/classes">
  <classpath refid="classpath"/>
  </javac>
 -->
 <path id="classpath">
  <fileset dir="${lib.dir}">
   <include name="**/*.jar" />
   <include name="*.zip" />
  </fileset>
  <fileset dir="${java.home}/lib">
   <include name="**/*.jar" />
   <include name="*.zip" />
  </fileset>
 </path>
 <!--
  ===================================================================
  init 准备目录(File Tasks)
  主要的目录结构通常是不会变的，一起生成他们
  ===================================================================
 -->
 <target name="init">
  <echo message="环境信息:" />
  <echo message="JAVA_HOME:${java.home}" />
  
  <!--清除以前目录-->
  <delete dir="${build.dir}" failonerror="false" />
  <delete dir="${classSavePath}" failonerror="false" />
  <!--准备目录-->
  <mkdir dir="${build.dir}" />
  <mkdir dir="${classSavePath}" />
 </target>
 <!--
  ===================================================================
  Build the code (Compile Tasks,File Tasks)
  ===================================================================
 -->
 <target name="build" depends="init">
  <!--编译-->
  <javac srcdir="${src.dir}" destdir="${classSavePath}"
   encoding="UTF-8" fork="true" memoryMaximumSize="1024m">
   <classpath refid="classpath" />
  </javac>
  <copy todir="${classSavePath}" includeemptydirs="false">
   <fileset dir="${src.dir}">
    <include name="**/*.properties" />
    <include name="**/*.xml" />
    <include name="**/*.xsl" />
   </fileset>
  </copy>
 </target>
 <!--
  ===================================================================
  打war包
  ===================================================================
 -->
 <target name="war" depends="build" description="生成war包">
  <echo message="正在打war包，请稍候..." />
  <war destfile="${build.dir}/${app.war}" encoding="gb2312"
   webxml="${warsource.dir}/WEB-INF/web.xml">
   <fileset dir="${warsource.dir}">
    <exclude name="build.xml" />
    <exclude name="**/web.xml" />
   </fileset>
  </war>
  <echo message="打war包结束" />
 </target>
 
 <!--
  ===================================================================
  快速（依靠原工程编译文件）打war包
  ===================================================================
 -->
 <target name="quick-war" depends="" description="生成war包">
  <echo message="非重新build打war包(请保证您的工程$/web/WEB-INF/classes已有下编译类)，请稍候..." />
  <war destfile="${build.dir}/${app.war}" encoding="gb2312"
   webxml="${warsource.dir}/WEB-INF/web.xml">
   <fileset dir="${warsource.dir}">
    <exclude name="build.xml" />
    <exclude name="**/web.xml" />
   </fileset>
  </war>
  <echo message="打war包结束" />
 </target>
 
</project>

如果想要把代码打成jar包的形式应如下处理：

	<target name="jar" depends="build">
		<echo message="正在打jar包，请稍候..." />
		<jar basedir="${classSavePath}"
			jarfile="${build.lib}/${app.jar}" />
	</target>

写的有点乱，大家凑合看吧！~~