Java MyEclipse下Ant build.xml简单实例详解
一、下载配置ant
1、首先下载ant: http://www.apache.org/ 下载最新的版本
2、解压ant 后设置ANT_HOME, PATH中添加ANT_HOME目录下的bin目录(如:ANT_HOME:D:\apache-ant-1.9.4,PATH:%ANT_HOME%\bin)
3、测试方法:开始-->运行-->cmd进入命令行-->键入 ant 回车,如果看到
Buildfile: build.xml does not exist!
Build failed
说明已经完成ant的设置。
二、创建项目
1、打开MyEclipse,创建一个java项目AntTestDemo, 创建一个测试类HelloAnt.java
package com.zdz.ant.test; public class HelloAnt { public static void main(String[] args){ System.out.println("Hello ant!"); } }
2、在项目根目录下创建一个build.xml文件,内容如下:
<?xml version="1.0" encoding="UTF-8"?> <!-- ====================================================================== Mar 17, 2015 3:17:08 PM project description Administrator ====================================================================== --> <project name="AutoTestDemo" default="run" basedir="."> <property name="src" value="src"></property> <property name="dest" value="classes"/> <property name="helloant_jar" value="helloant.jar"></property> <target name="init"> <mkdir dir="${dest}"/> </target> <target name="compile" depends="init" > <javac srcdir="${src}" destdir="${dest}"></javac> </target> <target name="build" depends="compile"> <jar jarfile="${helloant_jar}" basedir="${dest}"/> </target> <target name="run" depends="build"> <java classname="com.zdz.ant.test.HelloAnt" classpath="${helloant_jar}"></java> </target> <target name="clean"> <delete dir="${dest}"></delete> <delete file="${helloant_jar}"></delete> </target> <target name="rerun" depends="clean,run"> <ant target="clean"></ant> <ant target="run"></ant> </target> </project>
如下图:
3、右键点击build.xml-Run As-Ant Build
4、运行结果:
Buildfile: E:\003_Workspace\EclipseWorkSpace\JavaForJMeter\AntTestDemo\build.xml
init:
[mkdir] Created dir: E:\003_Workspace\EclipseWorkSpace\JavaForJMeter\AntTestDemo\classes
compile:
[javac] Compiling 1 source file to E:\003_Workspace\EclipseWorkSpace\JavaForJMeter\AntTestDemo\classes
build:
[jar] Building jar: E:\003_Workspace\EclipseWorkSpace\JavaForJMeter\AntTestDemo\helloant.jar
run:
[java] Hello ant!
BUILD SUCCESSFUL
Total time: 5 seconds
出来BUILD SUCCESSFUL 和预期结果说明ant跑成功了。
三、遇到的问题
1、Error starting modern compiler
解决方法:点击项目下右键:Properties-Java Build Path->Libraries->右边选 AddLibrary -->看Workspace default JRE (XXX)XXX是JDK什么版本。不对的话。选Alternate JRE .Installed JRES .->选自己的JDK 安装目录 ,就OK。
附:项目例子