Ant 打包java应用

最近在维护一个以前的项目，发现以前发布的时候居然都是手动发布，项目中用到第三方的Jar包，每次要解压、复制，麻烦而且容易出错。于是想起用Ant发布。上网查下资料，简单写了个Demo，里面只用到了Log4j.jar。

 

工程目录如图，其中dist和build目录是Ant构建过程中生成的：

 

下面是MainClass的代码：

/**
*@author DaiYanming
*@create date 2011-12-9
*/

package dc;

import org.apache.log4j.Logger;

public class MainClass {

	public static void main(String[] args) {
		Logger logger=Logger.getLogger(MainClass.class);
		logger.info("信息");
		logger.debug("调试");
		logger.error("出错啦");
	}

}

 

 Ant构建文件：

<?xml version="1.0" ?>
<project name="testPackage" default="jar">

	<property name="jar.name" value="testPackage.jar" />
	<property name="dist.home" value="dist" />
	<property name="build.home" value="build" />
	<property name="lib.home" value="lib" />

	<path id="lib_path">
		<fileset dir="${lib.home}">
			<include name="**/*.jar" />
		</fileset>
	</path>

	<target name="init">
		<mkdir dir="build/classes" />
		<mkdir dir="dist" />
	</target>

	<target name="compile" depends="init">
		<javac srcdir="src" destdir="build/classes" encoding="utf-8">
			<classpath>
				<path refid="lib_path"/>
			</classpath>
		</javac>
	</target>

	<target name="prepare" depends="init">
		<copy todir="${build.home}/classes/lib">
			<fileset dir="${lib.home}">
				<include name="**/*.jar" />
			</fileset>
		</copy>
		<copy todir="${build.home}/classes">
			<fileset dir=".">
				<include name="**/*.properties" />
			</fileset>
		</copy>
	</target>
	
	<target name="jar" depends="compile,prepare" description="Create jar and MANIFEST.MF">
		<!-- create a property containing all .jar files, prefix lib/, and seperated with a space -->
		<pathconvert property="libs.project" pathsep=" ">
			<mapper>
				<chainedmapper>
					<!-- remove absolute path -->
					<flattenmapper />
					<!-- add lib/ prefix -->
					<globmapper from="*" to="../lib/*" />
				</chainedmapper>
			</mapper>

			<path>
				<!-- lib.home contains all jar files, in several subdirectories -->
				<fileset dir="${lib.home}">
					<include name="**/*.jar" />
				</fileset>
			</path>
		</pathconvert>

		<!-- create the jar -->
		<jar destfile="${dist.home}/${jar.name}" basedir="${build.home}/classes">
			<!-- define MANIFEST.MF -->
			<manifest>
				<attribute name="Built-By" value="${user.name}" />
				<attribute name="Main-Class" value="dc.MainClass" />
				<section name="common">
					<attribute name="Specification-Version" value="${component.version}" />
				</section>

				<!-- finally, use the magically generated libs path -->
				<attribute name="Class-Path" value="${libs.project}" />
			</manifest>
		</jar>
	</target>


	<target name="clean" depends="init">
		<delete dir="build" />
		<delete dir="dist" />
	</target>
</project>

 在命令行下切换到工程目录，输入ant jar 提示：

E:\javawork\testPackage>ant
Buildfile: build.xml

init:

compile:

prepare:
     [copy] Copying 1 file to E:\javawork\testPackage\build\classes

jar:
      [jar] Building jar: E:\javawork\testPackage\dist\testPackage.jar

BUILD SUCCESSFUL
Total time: 0 seconds

 

打包完毕。