Ref

ant tutorial
ivy tutorial
repository

projects folder

build -classes -jar
src -package -java file
lib */.jar

cmmand lines

ant -p 
ant resolve 
ant compile jar run 
ant junit   #run junit test

build.xml

<!-- build.xml -->
<project xmlns:ivy="antlib:org.apache.ivy.ant" name="hello-ivy" default="run">
    <property name="src.dir"     value="src"/>

    <property name="build.dir"   value="build"/>
    <property name="classes.dir" value="${build.dir}/classes"/>
    <property name="jar.dir"     value="${build.dir}/jar"/>

    <property name="main-class"  value="oata.Helloworld"/> 
    <property name="lib.dir"     value="lib"/>
    <path id="classpath">
        <fileset dir="${lib.dir}" includes="**/*.jar"/>
    </path>


    <target name="clean">
        <delete dir="${build.dir}"/>
    </target>

    <target name="compile">
        <mkdir dir="${classes.dir}"/>
        <javac srcdir="${src.dir}" destdir="${classes.dir}"  classpathref="classpath"/>
    </target>

    <target name="jar" depends="compile">
        <mkdir dir="${jar.dir}"/>
        <jar destfile="${jar.dir}/${ant.project.name}.jar" basedir="${classes.dir}" >
            <manifest>
                <attribute name="Main-Class" value="${main-class}"/>
            </manifest>
        </jar>
    </target>

    <!-- <target name="run" depends="jar">
        <java jar="${jar.dir}/${ant.project.name}.jar" fork="true" classname="${main-class}">
            <classpath>
                <path refid="classpath"/>
                <path location="${jar.dir}/${ant.project.name}.jar"/>
            </classpath>/>
    </target> -->
    <path id="application" location="${jar.dir}/${ant.project.name}.jar"/>

    <target name="run" depends="jar">
        <java fork="true" classname="${main-class}">
            <classpath>
                <path refid="classpath"/>
                <path refid="application"/>
            </classpath>
        </java>
    </target>

    <target name="junit" depends="jar">
        <junit printsummary="yes">
            <classpath>
                <path refid="classpath"/>
                <path refid="application"/>
            </classpath>

            <batchtest fork="yes">
                <fileset dir="${src.dir}" includes="**/*Test.java"/>
            </batchtest>
        </junit>
    </target>
    <target name="clean-build" depends="clean,jar"/>

    <target name="main" depends="clean,run"/>

</project>

ivy.xml

<!-- ivy.xml -->
<ivy-module version="2.0">
    <info organisation="org.apache" module="hello-ivy"/>
    <dependencies>
        <dependency org="commons-lang" name="commons-lang" rev="2.0"/>
        <dependency org="commons-cli" name="commons-cli" rev="1.0"/>
        <!-- https://mvnrepository.com/artifact/junit/junit -->
        <dependency org="org.junit.jupiter" name="junit-jupiter-api" rev="5.8.2"/>
        <dependency org="org.springframework.boot" name="spring-boot-starter-mail" rev="2.3.7.RELEASE"/>

    </dependencies>
</ivy-module>

说明：
1.project folder下包含build.xml, ivy.xml文件
2.样例build.xml中有ivy dependencies, 含junit测试， external library
3.替换main-class value
4.ivy.xml中加repository，见repository