在蚂蚁设置类路径问题 [英] Problems with setting the classpath in ant
问题描述
我在让我的Java程序运行(它使用一些第三方JAR文件)的问题。我可以编译它正常,但当我把我的运行目标在蚂蚁它说,它无法找到我告诉它在classpath中运行的类。这里是我的build.xml是什么样子:
<项目的basedir =。默认为建>
<属性名=构建值=构建/>
<属性名=SRC值=。 />
<属性名=LIBVALUE =lib目录/><路径ID =类路径>
<文件集DIR =$ {} lib目录>
<包括姓名=** / *罐子。/>
< /文件集>
<文件集DIR =$ {}打造>
<包括姓名=*类。/>
< /文件集>
< /路径><目标名称=打造>
< javac的SRCDIR =$ {src}字符串DESTDIR =$ {}打造>
<类路径REFID =类路径/>
< / javac的>
< /目标与GT;<目标名称=运行>
< Java类名=的Firstclass>
<类路径REFID =类路径/>
< / JAVA>
< /目标与GT;
有谁知道我可能是做错了?
下面是我的堆栈跟踪从蚂蚁:
蚂蚁构建文件运行:build.xml文件跑:
【JAVA]找不到GuiStarter。请确保您有它在你的类路径
【JAVA]在org.apache.tools.ant.taskdefs.ExecuteJava.execute(ExecuteJava.java:138)
【JAVA]在org.apache.tools.ant.taskdefs.Java.run(Java.java:764)
【JAVA]在org.apache.tools.ant.taskdefs.Java.executeJava(Java.java:218)
【JAVA]在org.apache.tools.ant.taskdefs.Java.executeJava(Java.java:132)
【JAVA]在org.apache.tools.ant.taskdefs.Java.execute(Java.java:105)
【JAVA]在org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:288)
【JAVA]在sun.reflect.NativeMethodAccessorImpl.invoke0(本机方法)
【JAVA]在sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
【JAVA]在sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
【JAVA]在java.lang.reflect.Method.invoke(Method.java:616)
【JAVA]在org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106)
【JAVA]在org.apache.tools.ant.Task.perform(Task.java:348)
【JAVA]在org.apache.tools.ant.Target.execute(Target.java:357)
【JAVA]在org.apache.tools.ant.Target.performTasks(Target.java:385)
【JAVA]在org.apache.tools.ant.Project.executeSortedTargets(Project.java:1337)
【JAVA]在org.apache.tools.ant.Project.executeTarget(Project.java:1306)
【JAVA]在org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41)
【JAVA]在org.apache.tools.ant.Project.executeTargets(Project.java:1189)
【JAVA]在org.apache.tools.ant.Main.runBuild(Main.java:758)
【JAVA]在org.apache.tools.ant.Main.startAnt(Main.java:217)
【JAVA]在org.apache.tools.ant.launch.Launcher.run(Launcher.java:257)
【JAVA]在org.apache.tools.ant.launch.Launcher.main(Launcher.java:104)
【JAVA] Java结果:-1BUILD SUCCESSFUL总时间:1秒
我认为这个问题是与你的的classpath
路径声明。在建立
目录应该是一个< pathelement>
<路径ID =类路径>
<文件集DIR =$ {} lib目录>
<包括姓名=** / *罐子。/>
< /文件集>
< pathelement位置=$ {}构建/>
< /路径>
另外,我只会在您的的classpath
REFID 3-第三方罐。所以整个块的样子。
<路径ID =第三方类路径>
<文件集DIR =$ {} lib目录>
<包括姓名=** / *罐子。/>
< /文件集>
< /路径><目标名称=打造>
< javac的SRCDIR =$ {src}字符串DESTDIR =$ {}打造>
<类路径REFID =第三方类路径/>
< / javac的>
< /目标与GT;<目标名称=运行>
< Java类名=的Firstclass>
<&类路径GT;
< pathelement位置=$ {}构建/>
<路径REFID =第三方类路径/>
< /类路径>
< / JAVA>
< /目标与GT;
此外,作为DroidIn.net所指出的,你应该为你的程序创建一个包。
I'm having problems getting my Java program to run (it uses some third party JARs). I can compile it fine but when I call my run target in ant it says it can't find the class that I told it run in the classpath. Here's what my build.xml looks like:
<project basedir="." default="build">
<property name="build" value="build" />
<property name="src" value="." />
<property name="lib" value="lib" />
<path id="classpath">
<fileset dir="${lib}">
<include name="**/*.jar" />
</fileset>
<fileset dir="${build}">
<include name="*.class" />
</fileset>
</path>
<target name="build">
<javac srcdir="${src}" destdir="${build}">
<classpath refid="classpath" />
</javac>
</target>
<target name="run">
<java classname="FirstClass">
<classpath refid="classpath" />
</java>
</target>
Does anyone know what I might be doing wrong?
Here's my stack trace from ant:
ant run Buildfile: build.xml
run:
[java] Could not find GuiStarter. Make sure you have it in your classpath
[java] at org.apache.tools.ant.taskdefs.ExecuteJava.execute(ExecuteJava.java:138)
[java] at org.apache.tools.ant.taskdefs.Java.run(Java.java:764)
[java] at org.apache.tools.ant.taskdefs.Java.executeJava(Java.java:218)
[java] at org.apache.tools.ant.taskdefs.Java.executeJava(Java.java:132)
[java] at org.apache.tools.ant.taskdefs.Java.execute(Java.java:105)
[java] at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:288)
[java] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
[java] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
[java] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
[java] at java.lang.reflect.Method.invoke(Method.java:616)
[java] at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106)
[java] at org.apache.tools.ant.Task.perform(Task.java:348)
[java] at org.apache.tools.ant.Target.execute(Target.java:357)
[java] at org.apache.tools.ant.Target.performTasks(Target.java:385)
[java] at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1337)
[java] at org.apache.tools.ant.Project.executeTarget(Project.java:1306)
[java] at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41)
[java] at org.apache.tools.ant.Project.executeTargets(Project.java:1189)
[java] at org.apache.tools.ant.Main.runBuild(Main.java:758)
[java] at org.apache.tools.ant.Main.startAnt(Main.java:217)
[java] at org.apache.tools.ant.launch.Launcher.run(Launcher.java:257)
[java] at org.apache.tools.ant.launch.Launcher.main(Launcher.java:104)
[java] Java Result: -1
BUILD SUCCESSFUL Total time: 1 second
I think the problem is with your classpath
path declaration. The build
directory should be a <pathelement>
<path id="classpath">
<fileset dir="${lib}">
<include name="**/*.jar" />
</fileset>
<pathelement location="${build}" />
</path>
Also, I would only include 3-rd party jars in your classpath
refid. So the whole block looks like.
<path id="3rd-party-classpath">
<fileset dir="${lib}">
<include name="**/*.jar" />
</fileset>
</path>
<target name="build">
<javac srcdir="${src}" destdir="${build}">
<classpath refid="3rd-party-classpath" />
</javac>
</target>
<target name="run">
<java classname="FirstClass">
<classpath>
<pathelement location="${build}" />
<path refid="3rd-party-classpath" />
</classpath>
</java>
</target>
Also, as DroidIn.net has pointed out, you should create a package for you program.
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