javac标签的使用

<?xml version="1.0"?>
 <project name="project" default="junit">
    <property name="run.classpath" value="bin"></property>
    <property name="run.srcpath" value="src"></property>
    <property name="test.srcpath" value="test"></property>
    <property name="lib.dir" value="lib" />
    <path id="compile.path">
        <pathelement location="${lib.dir}/junit-3.8.1.jar" />
	<pathelement location="${lib.dir}/log4j-1.2.8.jar" />
    </path>
    <target name="compile">
	<javac destdir="${run.classpath}" srcdir="${run.srcpath}   classpathref="compile.path" ">
	    <include name="**/*.java"/>
             <exclude name="**/Example.java"/>
	</javac>
	<javac destdir="${run.classpath}" srcdir="${test.srcpath}"
			classpathref="compile.path" />
	</target>
 </project>