构建失败而执行Ant脚本

Question

我有一个ant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> 

和输出是

Buildfile: D:\Work\D3000\AntTest\Build.xml 
clean: 
    [delete] Deleting directory D:\Work\D3000\AntTest\classes 
    [echo] Hello 
compile: 
    [mkdir] Created dir: D:\Work\D3000\AntTest\classes 
    [javac] Compiling 1 source file to D:\Work\D3000\AntTest\classes 
compile: 
jar: 
     [jar] Building jar: D:\Work\D3000\AntTest\AntTest.jar 
compile: 
jar: 
use: 

BUILD FAILED 
D:\Work\D3000\AntTest\Build.xml:24: taskdef class AntTest cannot be found 
using the classloader AntClassLoader[D:\Work\D3000\AntTest\AntTest.jar] 

Total time: 758 milliseconds 

谁能告诉我，为什么这个错误来了：

构建失败d： \工作\ D3000 \ AntTest \在build.xml：24：的taskdef类AntTest 无法使用的类加载器中找到 AntClassLoader [d：\工作\ D3000 \ AntTest \ AntTest.jar]

我的类文件包含一个名为AntTest

Answer 1

类好像类名是错误的，你需要完整的类名。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"/>