How to add third-party jar package dependencies in Ant

If you use ant to compile and deploy a java project, how do you add a dependency on a third-party jar package? The method is as follows:
1. Create a lib directory in the root directory of the project, and put all required third-party jar packages in this directory.
2. In build.xml, add: path, property, and add classpath and unjar in javac. The complete configuration is as follows:

<?xml version="1.0" encoding="UTF-8"?>
<project name="MyTool" default="build" basedir=".">
  <description>The ant project to build MyTool.</description>
  <property name="srcDir" location="src" description="源文件的存放目录" />
  <property name="libDir" location="lib" description="第三方jar包的存放目录" />
  <property name="antDir" location="ant" description="编译后所有文件存放的根目录" />
  <property name="binDir" location="${antDir}/bin" description="编译后class文件的存放目录" />
  <property name="jarDir" location="${antDir}/jar" description="打包后jar包的存放目录" />
  <property name="jarFile" location="${jarDir}/MyTool.jar" description="打包后jar包存放的完整路径" />
  <property name="package" value="com.xiboliya.mytool" description="包名" />
  <property name="mainClass" value="MyTool" description="主类名" />
  <property name="resFromDir" location="res" description="资源文件的源目录" />
  <property name="resToDir" location="${binDir}/res" description="资源文件的目标目录" />
  <path id="libPath" description="编译时依赖的第三方jar包的存放路径">
    <fileset dir="${libDir}" erroronmissingdir="false">
      <include name="*.jar" />
    </fileset>
  </path>
  <property name="classpath" refid="libPath" description="编译时依赖的第三方jar包的存放路径" />
  <target name="init" description="初始化">
    <delete dir="${binDir}" />
    <delete dir="${jarDir}" />
    <mkdir dir="${binDir}" />
    <mkdir dir="${jarDir}" />
    <copy todir="${resToDir}" description="复制资源文件">
      <fileset dir="${resFromDir}" />
    </copy>
  </target>
  <target name="compile" depends="init" description="编译代码">
    <javac srcdir="${srcDir}" destdir="${binDir}" classpath="${classpath}" includeAntRuntime="false">
      <compilerarg value="-Xlint:unchecked"/>
      <compilerarg value="-Xlint:deprecation"/>
    </javac>
  </target>
  <target name="unjarLib" depends="init" description="解压第三方jar包，以便于重新打包入程序jar包中">
    <unjar dest="${binDir}">
      <fileset dir="${libDir}">
        <include name="**/*.jar" />
      </fileset>
      <patternset>
        <exclude name="META-INF"/>
        <exclude name="META-INF/MANIFEST.MF"/>
      </patternset>
    </unjar>
  </target>
  <target name="makeJar" depends="init,compile,unjarLib" description="生成jar包">
    <jar destfile="${jarFile}" basedir="${binDir}" excludes="**/Thumbs.db" description="打包为jar文件，并排除Thumbs.db文件">
      <manifest>
        <attribute name="Main-Class" value="${package}.${mainClass}" />
      </manifest>
    </jar>
  </target>
  <target name="build" depends="init,compile,makeJar" description="编译并打包">
    <echo message="Ant is building the project." />
  </target>
</project>