java project打包生成jar包（通用）

1. 在工程目录下新建一个build.xml文件，如下图所示，注意必须是在工程目录下，而不是在工程目录的src目录里。

2.编写ant脚本，内容如下，jar文件名称（com.anllin.rup.bookshop.stub.jar）需要更改，其他通用。

<?xml version="1.0" encoding="utf-8"?>
<project name="buildJarFile" default="compile" basedir=".">
    <!-- the directory containing source code-->
    <property name="src.dir" value="src" />

    <!-- Temporary build directories -->
    <property name="build.dir" value="build" />
    <property name="build.classes" value="${build.dir}/classes" />
    <property name="build.lib" value="${build.dir}/lib" />

    <!-- Target to  create the build directories prior to the compile target-->
    <target name="init">
        <mkdir dir="${build.dir}" />
        <mkdir dir="${build.classes}" />
        <mkdir dir="${build.lib}" />
    </target>

    <target name="clean" description="Remove all generted files">
        <delete dir="${build.dir}" />
    </target>

    <target name="compile" depends="init" description="Compiles all source code">
        <javac srcdir="${src.dir}" destdir="${build.classes}" />
    </target>

    <target name="jar" depends="compile" description="Generates jar file in 'dist' diretory">
        <!-- Exclude unit tests from the final JAR file-->
        <jar jarfile="${build.lib}/com.anllin.rup.bookshop.stub.jar" basedir="${build.classes}" excludes="**/*Test.class" />
    </target>

    <target name="alll" depends="clean, jar" description="Cleans, complies, then builds the JAR files.">
    </target>
</project>

3.选中build.xml，右键选择run as -> ant build, 执行脚本后，生成build目录如下图：