目前的Eclipse都集成了ant,本文图示如何在eclipse下使用ant。
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”);
}
}
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>

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:


此示例工程编译结果:
Buildfile: D:\dev\Workspaces\J2EE\HelloAnt\build.xml
compile:
compress:
main:
[echo] Building the .jar file.
BUILD SUCCESSFUL
Total time: 281 milliseconds

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