build.xml

<project name="My Project" default="help" basedir=".">
  <!-- Ant Demo Project -->
  <!-- Define the properties used by the Ant build -->
  <property name="app.name"      value="GoldenTech"/>
  <property name="app.version"   value="1.1"/>
  <property name="tcserver.home" value="E:\Devops\Tomcat\apache-tomcat-8.5.23\" />
  <!--<property name="tcserver.home" value="/home/teja/Desktop/Tomcat-8.5.24" />-->
  <property name="work.home"    value="${basedir}/work"/>
  <property name="dist.home"     value="${basedir}/dist"/>
  <property name="src.home"      value="${basedir}/src"/>
  <property name="web.home"      value="${basedir}/web"/>

  <target name="help">
    <echo>You can use the following targets:</echo>
    <echo> </echo>
    <echo>  help    : (default) Prints this message </echo>
    <echo>  all     : Cleans, compiles, and packages application</echo>
    <echo>  clean   : Deletes work directories</echo>
    <echo>  compile : Compiles servlets into class files</echo>
    <echo>  dist    : Packages artifacts into a deployable WAR</echo>
    <echo> ${basedir}</echo>
    <echo></echo>
    <echo>For example, to clean, compile, and package all at once, run:</echo>
    <echo>prompt> ant all </echo>
  </target>

  <!-- Define the CLASSPATH for project-->
  <path id="compile.classpath">
    <fileset dir="${tcserver.home}/bin">
      <include name="*.jar"/>
    </fileset>
    <pathelement location="${tcserver.home}/lib"/>
    <fileset dir="${tcserver.home}/lib">
      <include name="*.jar"/>
    </fileset>
  </path>

  <target name="all" depends="clean,compile,dist"
          description="Clean work dirs, then compile and create a WAR"/>

  <target name="clean" description="Delete old work and dist directories">
    <delete dir="${work.home}"/>
    <delete dir="${dist.home}"/>
  </target>

  <target name="prepare" depends="clean"
          description="Create working dirs and copy static files to work dir">
    <mkdir  dir="${dist.home}"/>
    <mkdir  dir="${work.home}/WEB-INF/classes"/>
    <!-- Copy static HTML and JSP files to work dir -->
    <copy todir="${work.home}">
      <fileset dir="${web.home}"/>
    </copy>
  </target>

  <target name="compile" depends="prepare"
          description="Compile Java sources and copy to WEB-INF/classes dir">
    <javac srcdir="${src.home}" destdir="${work.home}/WEB-INF/classes" includeantruntime="false">
       <classpath refid="compile.classpath"/>
    </javac>
    <copy  todir="${work.home}/WEB-INF/classes">
      <fileset dir="${src.home}" excludes="**/*.java"/>
    </copy>

  </target>


  <target name="dist" depends="compile"
          description="Create WAR file for binary distribution">
    <jar jarfile="${dist.home}/${app.name}-${app.version}.war"
         basedir="${work.home}"/>
  </target>

</project>