[英]How to add external jars with ant?
I am trying to figure out how to add external jars with Ant. 我试图弄清楚如何用Ant添加外部jar。
I made this simple project with NetBeans that "uses" an external library (gson 2.3.1): 我使用“使用”外部库(gson 2.3.1)的NetBeans创建了一个简单的项目:
This is how the project looks in filesystem (the Gson jar is in 'lib'): 这是项目在文件系统中的外观(Gson jar位于“ lib”中):
And this is the build.xml: 这是build.xml:
<?xml version="1.0" encoding="UTF-8"?>
<project name="Project" default="main" basedir=".">
<property name="lib.dir" location="lib" />
<property name="src.dir" location="src" />
<property name="build.dir" location="build" />
<property name="classes.dir" location="${build.dir}/classes" />
<property name="jar.dir" location="${build.dir}/jar" />
<target name="main" depends="execute">
<echo message="targets completed" />
</target>
<target name="execute" depends="jar">
<java jar="${jar.dir}/${ant.project.name}.jar" fork="true" />
</target>
<target name="jar" depends="compile">
<jar destfile="${jar.dir}/${ant.project.name}.jar" basedir="${classes.dir}">
<manifest>
<attribute name="Main-Class" value="project.Project"/>
</manifest>
</jar>
</target>
<target name="compile" depends="makedir">
<javac srcdir="${src.dir}" destdir="${classes.dir}">
<classpath>
<path>
<fileset dir="${lib.dir}">
<include name="**/*.jar" />
</fileset>
</path>
</classpath>
</javac>
</target>
<target name="makedir" depends="clean">
<mkdir dir="${build.dir}" />
<mkdir dir="${classes.dir}" />
<mkdir dir="${jar.dir}" />
</target>
<target name="clean">
<delete dir="${build.dir}" />
</target>
</project>
If I run this with Ant I get exception [java] Exception in thread "main" java.lang.NoClassDefFoundError: com/google/gson/Gson
from 'execute' target. 如果我使用Ant运行它,
[java] Exception in thread "main" java.lang.NoClassDefFoundError: com/google/gson/Gson
从“执行”目标中获取异常[java] Exception in thread "main" java.lang.NoClassDefFoundError: com/google/gson/Gson
。 What is wrong? 怎么了?
您将需要在jar目标中添加以下内容
<zipgroupfileset dir="${lib-dir}" includes="**/*.jar"/>
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