请问怎么安装ant

Question

我找了一个xerces.jar放在CLASSPATH中，错误依旧

Answer 1

build.xml自己写，这是j2eetutorial的例子(可到sun下载)
<project name="j2ee-tutorial-examples" default="about" basedir=".">
    <target name="init">
        <tstamp/>
        <property name="build" value="build" />
        <property name="src" value="src" />
        <property name="hello1" value="web/hello1" />
        <property name="hello2" value="web/hello2" />
        <property name="date" value="web/date" />
        <property name="bookstore1" value="web/bookstore1" />
        <property name="bookstore2" value="web/bookstore2" />
        <property name="bookstore3" value="web/bookstore3" />
        <property name="webejb" value="web/ejb" />
        <property name="webejbpath" value="${build}/web/ejb" />
        <property name="websql" value="sql" />
        <property name="ejb" value="ejb" />
        <property name="ejbsql" value="sql" />
        <property name="connector" value="connector" />
        <property name="connectorsql" value="sql" />
        <property environment="myenv" />
        <property name="j2eepath"  value="${myenv.J2EE_HOME}/lib/j2ee.jar" />
        <property name="webpath" value="${webejb}" />
        <property name="connector-lib" value="${myenv.J2EE_HOME}/lib/connector" />
        <property name="cloud-lib" value="${myenv.J2EE_HOME}/lib/cloudscape" />
        <property name="system-lib" value="${myenv.J2EE_HOME}/lib/system" />
        <property name="cloudpath" value=".:${cloud-lib}/cloudclient.jar:${cloud-lib}/RmiJdbc.jar:${system-lib}/cloudutil.jar:${system-lib}/cloudscape.jar" />
        <property name="cloud-jvmargs" value="-ms16m -mx32m -Dij.connection.CloudscapeDB=jdbc:rmi://localhost:1099/jdbc:cloudscape:CloudscapeDB;create=true -Dcloudscape.system.home=${myenv.J2EE_HOME}/cloudscape" /> 
    </target>