帮助ant文件 - Java任务的类路径

Question

我有Ant的下面的构建文件，并试图使用目标'运行'来执行程序。

<property name="springjar" location="E:/Tools/spring-30/dist/" /> 
<property name="logjar"  location="E:/Tools/commons-logging-1.1.1/" /> 

<patternset id="jar.files"><include name="**/*.jar"/></patternset> 

<path id="springlearn.classpath"> 
    <fileset dir="${springjar}"><patternset refid="jar.files"/></fileset> 
    <fileset dir="${logjar}"><patternset refid="jar.files"/></fileset> 
</path> 


<target name="run" depends="dist" description="Execute the Java Program"> 
    <java dir ="." fork="true" jar="dist\app.jar" classpathref ="springlearn.classpath"> 
    </java> 
</target> 

使用相同的classpathref，我能够成功编译&创建JAR，但使用目标运行时，我得到下面的错误在线程

java.lang.NoClassDefFoundError: org/springframework/core/io/Resource 
Caused by: java.lang.ClassNotFoundException: org.springframework.core.io.Resource 
    at java.net.URLClassLoader$1.run(URLClassLoader.java:200) 
    at java.security.AccessController.doPrivileged(Native Method) 
    at java.net.URLClassLoader.findClass(URLClassLoader.java:188) 
    at java.lang.ClassLoader.loadClass(ClassLoader.java:307) 
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:289) 
    at java.lang.ClassLoader.loadClass(ClassLoader.java:252) 
    at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320) 

异常“主要”

任何帮助，非常感谢。谢谢

Answer 1

这里有一个通用的Ant build.xml，对我来说很好。看它是否能帮助您，以及：

<?xml version="1.0" encoding="UTF-8"?> 
    <project name="ui" basedir="." default="package"> 

    <property name="version" value="1.6"/> 
    <property name="haltonfailure" value="no"/> 

    <property name="out" value="out"/> 

    <property name="production.src" value="src"/> 
    <property name="production.lib" value="lib"/> 
    <property name="production.resources" value="config"/> 
    <property name="production.classes" value="${out}/production/${ant.project.name}"/> 

    <property name="test.src" value="test"/> 
    <property name="test.lib" value="lib"/> 
    <property name="test.resources" value="config"/> 
    <property name="test.classes" value="${out}/test/${ant.project.name}"/> 

    <property name="exploded" value="out/exploded/${ant.project.name}"/> 
    <property name="exploded.classes" value="${exploded}/WEB-INF/classes"/> 
    <property name="exploded.lib" value="${exploded}/WEB-INF/lib"/> 

    <property name="reports.out" value="${out}/reports"/> 
    <property name="junit.out" value="${reports.out}/junit"/> 
    <property name="testng.out" value="${reports.out}/testng"/> 

    <path id="production.class.path"> 
     <pathelement location="${production.classes}"/> 
     <pathelement location="${production.resources}"/> 
     <fileset dir="${production.lib}"> 
      <include name="**/*.jar"/> 
      <exclude name="**/junit*.jar"/> 
      <exclude name="**/*test*.jar"/> 
     </fileset> 
    </path> 

    <path id="test.class.path"> 
     <path refid="production.class.path"/> 
     <pathelement location="${test.classes}"/> 
     <pathelement location="${test.resources}"/> 
     <fileset dir="${test.lib}"> 
      <include name="**/junit*.jar"/> 
      <include name="**/*test*.jar"/> 
     </fileset> 
    </path> 

    <path id="testng.class.path"> 
     <fileset dir="${test.lib}"> 
      <include name="**/testng*.jar"/> 
     </fileset> 
    </path> 

    <available file="${out}" property="outputExists"/> 

    <target name="clean" description="remove all generated artifacts" if="outputExists"> 
     <delete dir="${out}" includeEmptyDirs="true"/> 
     <delete dir="${reports.out}" includeEmptyDirs="true"/> 
    </target> 

    <target name="create" description="create the output directories" unless="outputExists"> 
     <mkdir dir="${production.classes}"/> 
     <mkdir dir="${test.classes}"/> 
     <mkdir dir="${junit.out}"/> 
     <mkdir dir="${testng.out}"/> 
     <mkdir dir="${exploded.classes}"/> 
     <mkdir dir="${exploded.lib}"/> 
     <mkdir dir="${reports.out}"/> 
    </target> 

    <target name="compile" description="compile all .java source files" depends="create"> 
     <!-- Debug output 
       <property name="production.class.path" refid="production.class.path"/> 
       <echo message="${production.class.path}"/> 
     --> 
     <javac srcdir="src" destdir="${out}/production/${ant.project.name}" debug="on" source="${version}"> 
      <classpath refid="production.class.path"/> 
      <include name="**/*.java"/> 
      <exclude name="**/*Test.java"/> 
     </javac> 
     <javac srcdir="${test.src}" destdir="${out}/test/${ant.project.name}" debug="on" source="${version}"> 
      <classpath refid="test.class.path"/> 
      <include name="**/*Test.java"/> 
     </javac> 
    </target> 

    <target name="junit-test" description="run all junit tests" depends="compile"> 
     <!-- Debug output 
       <property name="test.class.path" refid="test.class.path"/> 
       <echo message="${test.class.path}"/> 
     --> 
     <junit printsummary="yes" haltonfailure="${haltonfailure}"> 
      <classpath refid="test.class.path"/> 
      <formatter type="xml"/> 
      <batchtest fork="yes" todir="${junit.out}"> 
       <fileset dir="${test.src}"> 
        <include name="**/*Test.java"/> 
       </fileset> 
      </batchtest> 
     </junit> 
     <junitreport todir="${junit.out}"> 
      <fileset dir="${junit.out}"> 
       <include name="TEST-*.xml"/> 
      </fileset> 
      <report todir="${junit.out}" format="frames"/> 
     </junitreport> 
    </target> 

    <taskdef resource="testngtasks" classpathref="testng.class.path"/> 
    <target name="testng-test" description="run all testng tests" depends="compile"> 
     <!-- Debug output 
       <property name="test.class.path" refid="test.class.path"/> 
       <echo message="${test.class.path}"/> 
     --> 
     <testng classpathref="test.class.path" outputDir="${testng.out}" haltOnFailure="${haltonfailure}" verbose="2"> 
      <classfileset dir="${out}/test/${ant.project.name}" includes="**/*.class"/> 
     </testng> 
    </target> 

    <target name="exploded" description="create exploded deployment" depends="testng-test"> 
     <copy todir="${exploded.classes}"> 
      <fileset dir="${production.classes}"/> 
     </copy> 
     <copy todir="${exploded.lib}"> 
      <fileset dir="${production.lib}"/> 
     </copy> 
    </target> 

    <target name="package" description="create package file" depends="exploded"> 
     <jar destfile="${out}/${ant.project.name}.jar" basedir="${production.classes}" includes="**/*.class"/> 
    </target> 

</project> 

Answer 2

从java task docs：

当使用jar属性，所有的类路径设置是根据Sun's specification忽略。

因此，您设置的类路径根本没有被查看。

你可以添加dist/app.jar到类路径中并调用主类直接：

<java dir ="." fork="true" classname="com.yourdomain.YourMainClass"> 
    <classpath> 
    <path refid="springlearn.classpath" /> 
    <pathelement location="dist\app.jar" /> 
    </classpath> 
</java> 

如果你要拨打的罐子，你需要建立一个类路径条目在清单中，当你建立它。看看pathconvert任务，它可能很有用。