执行Ant脚本时生成失败

Question

我有一个蚂蚁脚本：

<?xml version="1.0" encoding="UTF-8"?>
<project name="AntTest" basedir="." default="clean">
 <property name="src.dir" value="src"/>
 <property name="classes.dir" value="classes"/>
 <target name="clean" description="delete all generated files">
    <delete dir="${classes.dir}" failonerror="false"/>
    <echo message="Hello" />
    <delete dir="${ant.project.name}.jar"/>
 </target>
<target name="compile" description="compile the task">
    <mkdir dir="${classes.dir}"/>
    <javac includeantruntime="false" srcdir="${src.dir}" destdir="${classes.dir}"/>
 </target>
<target name="jar" description="create jars of task" depends="compile">
    <jar destfile="${ant.project.name}.jar" basedir="${classes.dir}" />
 </target>

 <target name="use" description="use the created jars" depends="jar">
    <taskdef name="ntTest" classname="AntTest" classpath="${ant.project.name}.jar" />
    <ntTest/>
 </target>
</project>

输出为

Buildfile: D:WorkD3000AntTestBuild.xml
clean:
   [delete] Deleting directory D:WorkD3000AntTestclasses
     [echo] Hello
compile:
    [mkdir] Created dir: D:WorkD3000AntTestclasses
    [javac] Compiling 1 source file to D:WorkD3000AntTestclasses
compile:
jar:
      [jar] Building jar: D:WorkD3000AntTestAntTest.jar
compile:
jar:
use:
BUILD FAILED
D:WorkD3000AntTestBuild.xml:24: taskdef class AntTest cannot be found
 using the classloader AntClassLoader[D:WorkD3000AntTestAntTest.jar]
Total time: 758 milliseconds

有人能告诉我为什么会出现这个错误吗：

BUILD失败D:\Work\D3000\AntTest\BUILD.xml:24:taskdef类AntTest使用类加载器找不到AntClassLoader[D:\Work\D3000\AntTest\AntTest.jar]

我的类文件包含名为AntTest 的类

Answer 1

似乎类名错误，您需要完全限定的类名

而不是：

<taskdef name="ntTest" classname="AntTest" classpath="${ant.project.name}.jar"/>

尝试：

<taskdef name="ntTest" classname="com.yourdomain.AntTest" classpath="${ant.project.name}.jar"/>