整理一个ANT在J2EE项目中的应用，含预编译JSP和打包WAR/EAR文件！[7]

  <!--// for Tomcat //--> 
  <target name="jsp_src_generate" depends="src_compile">
    <taskdef classname="org.apache.jasper.JspC" name="jasper2">
      <classpath refid="CLASSPATH"/>  
    </taskdef>
    <jasper2 validateXml="false" 
             verbose="9"
             uriroot="${dir.project.web_module}" 
             outputDir="${dir.project.compile.jspcache}" 
             webXmlFragment="${dir.project.compile.jspcache}/generated-web.xml" /> 
  </target>
  
  <!--// for OC4J 9.0.4
    <target name="jsp_src_generate" depends="src_compile">
      <java classname="oracle.jsp.tools.Jspc" fork="yes" failonerror="true">
        <classpath refid="CLASSPATH"/>
        <arg line="-extend com.orionserver.http.OrionHttpJspPage"/>
        <arg line="-srcdir ${dir.project.compile.jspcache}"/>
        <arg line="-appRoot ${dir.project.web_module}"/>
        <arg line="-noCompile"/>
        <arg line="-debug"/>
        <arg line="-verbose"/>
        <arg line="${dir.project.web}/*.jsp"/>
      </java>
    </target>
  //-->
  
  <target name="jsp_src_compile">
    <javac srcdir="${dir.project.compile.jspcache}" 
           destdir="${dir.project.compile.jspcache}" 
           encoding="${opt.compile.encoding}" 
           source="${opt.compile.source}" 
           target="${opt.compile.source}" 
           deprecation="${opt.compile.deprecation}"
           debug="${opt.compile.debug}" 
           optimize="{opt.compile.optimize}" >
      <classpath refid="CLASSPATH"/>
      <include name="**"/>
    </javac>
  </target>
  
  <target name="jsp_precompile" depends="src_compile, jsp_src_generate, jsp_src_compile" />