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在Eclipse下使用ant

目前的Eclipse都集成了ant,但是如何在Eclipse下使用ant呢?

1.新建Java Project-新建Java文件HelloWorld.java

HelloWorld.java:

package example;public class HelloWorld {    public static void main(String[] args) {       System.out.println("Hello World");    }}
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2.在工程根目录下新建build.xml

build.xml:

<?xml version="1.0" encoding="utf-8"?><project default="main" basedir=".">    <target name="main" depends="compile, compress" description="Main target">       <echo>Building the .jar file.</echo>    </target>    <target name="compile" description="Compilation target">       <javac srcdir="${basedir}/src/example" />    </target>    <target name="compress" description="Compression target">       <jar jarfile="HelloWorld.jar" basedir="${basedir}/src/example"includes="*.class" />    </target></project>
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此脚本文件内容是编译/src/example下的java文件,并就地生成class文件,将这个class文件打成jar包,HelloWorld.jar。

此时工程的目录结构如下图所示:

右键选中HelloAnt工程,选择Properties:

选择Builders-New…,选择Ant Build,

Name:Ant_Builder;

Buildfile:${workspace_loc:/HelloAnt/build.xml};

Base Directory:${workspace_loc:/HelloAnt};

(按“Browse Workspace”选择工程根目录)

 

在Builder面板中钩上Ant_Build,去掉Java Builder,即可编译执行。

每次编译时,右键build.xml,选择Run As-Ant Build:

编译结果:

Buildfile: F:\workfile\ant_test\build.xmlcompile:    [javac] F:\workfile\ant_test\build.xml:7: warning: includeantruntime was not set, defaulting to build.sysclasspath=last; set to false for repeatable buildscompress:main:     [echo] Building the .jar file.BUILD SUCCESSFULTotal time: 1 second
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