使用Jarbundler和ant

Question

我试图使用jarbundler来创建一个.app文件。但我得到了以下错误：

使用类加载器AntClassLoader/Users/Ida/NetBeansProjects/supernova/build/classes/lib/jarbundler-core-3.3.0.jar找不到taskdef类net.sourceforge.jarbundler.JarBundler

我的build.xml看起来是这样的：

 <path id="classpath">
        <fileset dir="dist/lib">
            <include name="*.jar"/>
        </fileset>
    </path>

    <target name="clean">
        <delete dir="build"/>
    </target>

    <target name="compile">
        <mkdir dir="build/classes"/>
        <javac srcdir="src" destdir="build/classes">
            <classpath>
                <path refid="classpath"/>
                <path location="${jar.dir}/${ant.project.name}.jar"/>
            </classpath>
        </javac>
        <copy todir="build/classes">
            <fileset dir="src" excludes="**/*.java"/>
        </copy>
    </target>

    <target name="dist">
        <mkdir dir="build/classes/lib"/>
        <copy flatten="true" todir="build/classes/lib" includeemptydirs="false">
            <fileset dir="dist/lib">
                <include name="*.jar"/>
            </fileset>
        </copy>
        <mkdir dir="build/jar"/>
        <jar destfile="build/jar/SuperNova.jar" basedir="build/classes">
            <fileset dir="dist/lib">
                <include name="*.jar"/>
            </fileset>
            <manifest>
                <attribute name="Main-Class" value="com.lumenradio.supernova.SuperNovaApp"/>
            </manifest>
        </jar>
    </target>

    <target name="jar">
        <mkdir dir="build/jar"/>
        <jar destfile="build/jar/SuperNova.jar" basedir="build/classes">
            <fileset dir="dist/lib">
                <include name="*.jar"/>
            </fileset>
            <manifest>
                <attribute name="Main-Class" value="com.lumenradio.supernova.SuperNovaApp"/>
            </manifest>
        </jar>
    </target>

    <target name="run" depends="jar">
        <java fork="true" classname="com.lumenradio.supernova.SuperNovaApp">
            <classpath>
                <path refid="classpath"/>
                <path location="build/jar/SuperNova.jar"/>
            </classpath>
        </java>
    </target>



    <target name='package-app'>
        <taskdef name="jarbundler" classname="net.sourceforge.jarbundler.JarBundler">
            <classpath>
                <pathelement location="build/classes/lib/jarbundler-core-3.3.0.jar"/>
            </classpath>
        </taskdef>
        <jarbundler dir="dist" name="SuperNova" 
            mainclass="com.lumenradio.supernova.SuperNovaApp"
            jar="build/jar/SuperNova.jar"/>
    </target>

现在有谁知道我为什么会犯这个错误，我应该如何解决呢？

编辑

谢谢你的帮助。现在我可以构建.app文件了，但是当我试图运行它时，我会得到以下错误：

错误:找不到或加载主类com.lumenradio.supernova.SuperNovaApp

我的目标现在看起来是这样：

<target name='package-app'>
        <taskdef name="jarbundler" classpath="build/classes/lib/jarbundler-core-3.3.0.jar" 
        classname="com.ultramixer.jarbundler.JarBundler"/>

        <jarbundler dir="dist" name="SuperNova" 
            jar="build/jar/SuperNova.jar"
            mainclass="com.lumenradio.supernova.SuperNovaApp"
            icon="SuperNova copy.icns"
            stubfile="universalJavaApplicationStub"
            useJavaXKey="true"
            jvmversion="1.7+"/>
    </target>

Answer 1

我下载了jar来查看，我认为问题是您的classname是错误的。JarBundler类位于com.ultramixer.jarbundler.JarBundler中，因此尝试如下：

    <taskdef name="jarbundler" classname="com.ultramixer.jarbundler.JarBundler">
        <classpath>
            <pathelement location="build/classes/lib/jarbundler-core-3.3.0.jar"/>
        </classpath>
    </taskdef>

此外，由于您只加载一个库，因此不需要使用嵌套的类路径来代替taskdef的classpath属性，因此可以稍微简化它：

    <taskdef
        name="jarbundler"
        classname="com.ultramixer.jarbundler.JarBundler"
        classpath="build/classes/lib/jarbundler-core-3.3.0.jar"
    />

Answer 2

问题是lib文件夹不在jar的目的地中，所以我通过编辑洞build.xml文件来解决这个问题：

<target name='package-app' depends='clean, jar'>
    <taskdef name="jarbundler" classpath="dist/lib/jarbundler-core-3.3.0.jar" 
    classname="com.ultramixer.jarbundler.JarBundler"/>

    <jarbundler dir="dist" name="SuperNova" 
        jar="dist/SuperNova.jar"
        mainclass="com.lumenradio.supernova.SuperNovaApp"
        icon="SuperNova copy.icns"
        stubfile="universalJavaApplicationStub"
        useJavaXKey="true"
        jvmversion="1.7+"/>

    <mkdir dir="dist/SuperNova.app/Contents/Resources/Java/lib"/>
    <copy flatten="true" todir="dist/SuperNova.app/Contents/Resources/Java/lib" includeemptydirs="false">
        <fileset dir="dist/lib">
            <include name="*.jar"/>
        </fileset>
    </copy>
</target>

现在它工作得很完美。