Ant –如何创建一个Java项目

向右看齐 2023-02-15 05:12 4阅读 0赞

在本教程中，我们将向您展示如何使用Ant构建工具来管理Java项目，进行编译并将其打包到Jar文件中。

使用的技术：

1.  Eclipse 4.2
2.  蚂蚁1.9.4
3.  JDK 1.7

## 1.创建一个Java项目 ##

在Eclipse IDE中，创建一个名为“ AntDateUtils”的新Java项目。

![ant-java-project][]![ant-java-project][ant-java-project 1]

## 2. Java源代码 ##

创建一个新的Java类以打印出当前日期：

src/com/mkyong/core/utils/DateUtils.java

package com.mkyong.core.utils;
    
    import java.util.Date;
    
    public class DateUtils {
    
    	public static void main(String[] args) {
    
    		System.out.println(getLocalCurrentDate());
    		
    	}
    
    	private static Date getLocalCurrentDate() {
    		return new Date();		
    	}
    
    }

## 3. build.xml ##

在项目根文件夹中创建一个新的`build.xml` ，阅读注释以进行自我解释。

build.xml

<project name="AntJavaProject" default="main" basedir=".">
    	<description>
    		Create a Java Project (JAR) with Ant build script
    	</description>
    
    	<property name="projectName" value="DateUtils" />
    	
    	
    	<property name="src.dir" location="src" />
    	
    	
    	<property name="build.dir" location="bin" />
    	
    	
    	<property name="dist.dir" location="dist" />
    
    	<target name="init">
    		
    		<tstamp />
    		
    		<mkdir dir="${build.dir}" />
    	</target>
    
    	<target name="compile" depends="init" description="compile the source ">
    		
    		<javac includeantruntime="false" srcdir="${src.dir}" destdir="${build.dir}" />
    	</target>
    
    	<target name="dist" depends="compile" description="package, output to JAR">
    
    		
    		<mkdir dir="${dist.dir}" />
    
    		
    		<jar jarfile="${dist.dir}/${projectName}-${DSTAMP}.jar" basedir="${build.dir}" >
    		    <manifest>
    			
    			<attribute name="Main-Class" value="com.mkyong.core.utils.DateUtils" />
    		    </manifest>
    		</jar>
    	</target>
    
    	<target name="clean" description="clean up">
    		<delete dir="${build.dir}" />
    		<delete dir="${dist.dir}" />
    	</target>
    	
    	
    	<target name="main" depends="clean, compile, dist" />
    	
    </project>

## 4.蚂蚁构建脚本 ##

完成，尝试一些Ant命令

4.1编译源代码

$ ant compile

build.xml

4.2将项目打包到可执行的Jar文件中

$ ant dist

build.xml

4.3删除文件夹

$ ant clean

build.xml

4.4如果没有选项，将执行默认目标，在此示例中，默认目标为`main`

build.xml

$ ant

输出量

Buildfile: /Users/mkyong/Documents/workspace/AntDateUtils/build.xml
    clean:
       [delete] Deleting directory /Users/mkyong/Documents/workspace/AntDateUtils/bin
       [delete] Deleting directory /Users/mkyong/Documents/workspace/AntDateUtils/dist
    init:
        [mkdir] Created dir: /Users/mkyong/Documents/workspace/AntDateUtils/bin
    compile:
        [javac] Compiling 1 source file to /Users/mkyong/Documents/workspace/AntDateUtils/bin
    dist:
        [mkdir] Created dir: /Users/mkyong/Documents/workspace/AntDateUtils/dist
          [jar] Building jar: /Users/mkyong/Documents/workspace/AntDateUtils/dist/DateUtils-20141030.jar
    main:
    BUILD SUCCESSFUL
    Total time: 1 second

最终目录结构

![ant-java-project-final][]![ant-java-project-final][ant-java-project-final 1]

## 5.测试 ##

5.1在Jar文件中运行一个类。

$ pwd
    /Users/mkyong/Documents/workspace/AntDateUtils
    
    $ java -cp dist/DateUtils-20141030.jar com.mkyong.core.utils.DateUtils
    Thu Oct 30 17:39:21 MYT 2014

5.2运行可执行的Jar文件

$ pwd
    /Users/mkyong/Documents/workspace/AntDateUtils
    
    $ java -jar dist/DateUtils-20141030.jar
    Thu Oct 30 17:40:21 MYT 2014

## 下载源代码 ##

> 下载它– [AntDateUtils.zip][] （6 KB）

## 参考文献 ##

1.  [Apache Ant Hello World官方指南][Apache Ant Hello World]

标记： [ant][] [java项目][java]

> 翻译自: [https://mkyong.com/ant/ant-how-to-create-a-java-project/][https_mkyong.com_ant_ant-how-to-create-a-java-project]

[ant-java-project]: http://imgconvert.csdnimg.cn/aHR0cDovL3d3dy5ta3lvbmcuY29tL3dwLWNvbnRlbnQvdXBsb2Fkcy8yMDE0LzEwL2FudC1qYXZhLXByb2plY3QuanBn?x-oss-process=image/format,png
[ant-java-project 1]: http://imgconvert.csdnimg.cn/aHR0cHM6Ly93d3cubWt5b25nLmNvbS93cC1jb250ZW50L3VwbG9hZHMvMjAxNC8xMC9hbnQtamF2YS1wcm9qZWN0LmpwZw?x-oss-process=image/format,png
[ant-java-project-final]: http://imgconvert.csdnimg.cn/aHR0cDovL3d3dy5ta3lvbmcuY29tL3dwLWNvbnRlbnQvdXBsb2Fkcy8yMDE0LzEwL2FudC1qYXZhLXByb2plY3QtZmluYWwuanBn?x-oss-process=image/format,png
[ant-java-project-final 1]: http://imgconvert.csdnimg.cn/aHR0cHM6Ly93d3cubWt5b25nLmNvbS93cC1jb250ZW50L3VwbG9hZHMvMjAxNC8xMC9hbnQtamF2YS1wcm9qZWN0LWZpbmFsLmpwZw?x-oss-process=image/format,png
[AntDateUtils.zip]: http://www.mkyong.com/wp-content/uploads/2014/10/AntDateUtils.zip
[Apache Ant Hello World]: https://ant.apache.org/manual/tutorial-HelloWorldWithAnt.html
[ant]: https://mkyong.com/tag/ant/
[java]: https://mkyong.com/tag/java-project/
[https_mkyong.com_ant_ant-how-to-create-a-java-project]: https://mkyong.com/ant/ant-how-to-create-a-java-project/