如何在 ant 中正确设置类路径？

Question

I have my single dependency on path projectRoot/lib/jsoup.jar .

My build.xml is simple:

<project name="Ant-Demo" default="main" basedir=".">

    <property name="src.dir" value="src" />
    <property name="build.dir" value="buildDirectory" />
    <property name="dist.dir" value="dist" />
    <property name="docs.dir" value="docs" />
    <property name="lib.dir" value="lib" />

    <path id="build.classpath">
        <pathelement location="lib/jsoup-1.7.3.jar"/>
    </path>

    <target name="compile" depends="clean,makedir">
        <javac srcdir="${src.dir}" destdir="${build.dir}" classpathref="build.classpath" />
    </target>

    <target name="jar" depends="compile">
    <jar destfile="${dist.dir}/AntDemo,jar" basedir="${build.dir}">
        <manifest>
            <attribute name="Main-Class" value="ant.test" />
        </manifest>
    </jar>
</target>
    ........................................... 

This doesn't work, because jsoup.jar is not included in final AntDemo.jar.

EDIT When compile target is running the output has warning:

compile:
    [javac] D:\Software\es_ws\AntDemo\build.xml:30: warning: 'includeantruntime' was not set, defaulting to build.sysclasspath=last; set to false for repeatable builds
    [javac] Compiling 2 source files to D:\Software\es_ws\AntDemo\buildDirectory

What does this warning mean?

Thank you!

Answer 1

If you need that the content of jsoup.jar is included on your AntDemo.jar you can do it on several ways. My suggestion is use this solution:

<jar destfile="${dist.dir}/AntDemo.jar" >
    <manifest>
        <attribute name="Main-Class" value="ant.test" />
    </manifest>
    <fileset dir="${build.dir}" />
    <zipfileset includes="**/*.class" src="lib/jsoup-1.7.3.jar" />
</jar>

Answer 2

When you compile classes and specify a classpath, the classes and other resources in that javac classpath don't get copied over to the destination, in ant or in typical command line javac . You need to copy them over manually, or in ant with a copy or other means.