我如何添加外部jar在我的build.xml

Question

如何在build.xml中添加外部jar ?我得到编译错误，而运行我的build.xml.一些jar丢失。如何在build.xml中添加它们?

我的build.xml看起来像这样

<project name="HUDSONSTATUSWS" default="dist" basedir=".">
    <description>
        Web Services build file
    </description>
  <!-- set global properties for this build -->
  <property name="src" location="src"/>
  <property name="build" location="build"/>
  <property name="dist"  location="dist"/>
  <property name="webcontent"  location="WebContent"/>
  <target name="init">
    <!-- Create the time stamp -->
    <tstamp/>
    <!-- Create the build directory structure used by compile -->
    <mkdir dir="${build}"/>
  </target>
  <target name="compile" depends="init"
    description="compile the source " >
    <!-- Compile the java code from ${src} into ${build} -->
    <javac srcdir="${src}" destdir="${build}"/>
  </target>
  <target name="dist" depends="compile"
    description="generate the distribution" >
    <!-- Create the distribution directory -->
    <mkdir dir="${dist}/lib"/>
    <!-- Put everything in ${build} into the MyProject-${DSTAMP}.jar file -->
    <jar jarfile="${dist}/lib/MyProject-${DSTAMP}.jar" basedir="${build}"/>
  </target>
  <target name="war" depends="compile"
    description="generate the distribution war" >
    <!-- Create the war distribution directory -->
    <mkdir dir="${dist}/war"/>
    <!-- Follow standard WAR structure -->
    <copydir dest="${dist}/war/build/WEB-INF/" src="${webcontent}/WEB-INF/" />
    <copydir dest="${dist}/war/build/WEB-INF/classes/" src="${build}" />
    <jar jarfile="${dist}/war/HelloWorld-${DSTAMP}.war" basedir="${dist}/war/build/"/>
  </target>
  <target name="clean"
    description="clean up" >
    <!-- Delete the ${build} and ${dist} directory trees -->
    <delete dir="${build}"/>
    <delete dir="${dist}"/>
  </target>
</project>

Answer 1

您只需要指定javac的类路径，使用classpath或classpathref属性，或嵌套的classpath元素。

详情见http://ant.apache.org/manual/Tasks/javac.html。ant文档写得非常好，非常详尽，并且充满了示例。它是用来读的