mvn exec:java on aggregate pom

Question

有谁知道是否有可能在mvn聚合POM上运行mvn exec:java？

目前我得到:

2009-09-24 02:24:14.404  :bash: karolrvn@karolrvn-laptop : ~/adfadf/programming/verknowsys/codadris/ide_projects $ mvn exec:java -e -Dexec.mainClass=codadris.coviob2.App_Coviob2
+ Error stacktraces are turned on.
[INFO] Scanning for projects...
[INFO] Reactor build order:
[INFO]   net.jcip.annotations
[INFO]   codadris.utils
[INFO]   codadris.binblocklang
[INFO]   jargs
[INFO]   codadris.dbapp
[INFO]   codadris.dbgui.scala
[INFO]   flexdock_codadris
[INFO]   codadris.gui.utils
[INFO]   codadris.gui
[INFO]   codadris.gui.treetable
[INFO]   codadris.gui.textedit
[INFO]   codadris.gui.screenspace
[INFO]   codadris.gui.suite
[INFO]   codadris.dbgui
[INFO]   All Codadris modules aggregate POM
[INFO] Searching repository for plugin with prefix: 'exec'.
[INFO] ------------------------------------------------------------------------
[INFO] Building net.jcip.annotations
[INFO]    task-segment: [exec:java]
[INFO] ------------------------------------------------------------------------
[INFO] Preparing exec:java
[INFO] No goals needed for project - skipping
[INFO] [exec:java]
[INFO] ------------------------------------------------------------------------
[ERROR] BUILD ERROR
[INFO] ------------------------------------------------------------------------
[INFO] An exception occured while executing the Java class. codadris.coviob2.App_Coviob2

[INFO] ------------------------------------------------------------------------
[INFO] Trace
org.apache.maven.lifecycle.LifecycleExecutionException: An exception occured while executing the Java class. codadris.coviob2.App_Coviob2
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:583)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeStandaloneGoal(DefaultLifecycleExecutor.java:512)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal(DefaultLifecycleExecutor.java:482)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHandleFailures(DefaultLifecycleExecutor.java:330)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegments(DefaultLifecycleExecutor.java:291)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecutor.java:142)
        at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:336)
        at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:129)
        at org.apache.maven.cli.MavenCli.main(MavenCli.java:287)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at org.codehaus.classworlds.Launcher.launchEnhanced(Launcher.java:315)
        at org.codehaus.classworlds.Launcher.launch(Launcher.java:255)
        at org.codehaus.classworlds.Launcher.mainWithExitCode(Launcher.java:430)
        at org.codehaus.classworlds.Launcher.main(Launcher.java:375)
Caused by: org.apache.maven.plugin.MojoExecutionException: An exception occured while executing the Java class. codadris.coviob2.App_Coviob2
        at org.codehaus.mojo.exec.ExecJavaMojo.execute(ExecJavaMojo.java:345)
        at org.apache.maven.plugin.DefaultPluginManager.executeMojo(DefaultPluginManager.java:451)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:558)
        ... 16 more
Caused by: java.lang.ClassNotFoundException: codadris.coviob2.App_Coviob2
        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 java.lang.ClassLoader.loadClass(ClassLoader.java:252)
        at org.codehaus.mojo.exec.ExecJavaMojo$1.run(ExecJavaMojo.java:283)
        at java.lang.Thread.run(Thread.java:619)
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 1 second
[INFO] Finished at: Thu Sep 24 02:24:17 CEST 2009
[INFO] Final Memory: 4M/94M
[INFO] ------------------------------------------------------------------------
2009-09-24 02:24:17.917  :bash: karolrvn@karolrvn-laptop : ~/adfadf/programming/verknowsys/codadris/ide_projects $

POM:

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>codadris</groupId>
    <artifactId>codadris</artifactId>
    <packaging>pom</packaging>
    <version>0.0.1-SNAPSHOT</version>
    <name>All Codadris modules aggregate POM</name>
    <url>http://maven.apache.org</url>
    <modules>
        <module>codadris.binblocklang</module>
        <module>codadris.dbapp</module>
        <module>codadris.dbgui</module>
        <!-- <module>codadris.dbgui.scala</module> -->
        <module>codadris.gui</module>
        <!--<module>codadris.gui.scala</module>-->
        <module>codadris.gui.screenspace</module>
        <module>codadris.gui.suite</module>
        <module>codadris.gui.textedit</module>
        <module>codadris.gui.treetable</module>
        <module>codadris.gui.utils</module>
        <module>codadris.utils</module>
<!--        <module>ekit_codadris</module>-->
        <module>flexdock_codadris</module>
        <module>jargs</module>
        <module>net.jcip.annotations</module>
        <module>codadris.dbgui.scala</module>
    </modules>

    <!-- 2009-08-27 06:04:10 ; karolrvn ; http://stackoverflow.com/questions/1274523/maven-surefire-reporting-plugin-configuration -->
    <reporting>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-surefire-report-plugin</artifactId>
<!--                <version>2.4.2</version> -->
                <configuration>
                    <aggregate>true</aggregate>
                    <!--also set this to link to generated source reports-->
                    <linkXRef>true</linkXRef>
                </configuration>
            </plugin>
        </plugins>
    </reporting>


</project>

我要执行的类(codadris.coviob2.App_Coviob2)在模块codadris.dbgui中

有任何想法吗？
TIA
很抱歉,可能格式不正确.换行时遇到了一些问题.

Answer 1

根据Exec Maven插件文档,有关exec:java:

在当前VM中执行提供的java类,并将封闭项目的依赖项作为类路径.

在这里,你显示的聚合pom不包含对codadris.dbgui模块的任何依赖(这实际上是好事,不要添加它!),因此java.lang.ClassNotFoundException.

为了避免这种情况java.lang.ClassNotFoundException,第一个选项是exec:java从包含Java类的模块运行目标,如另一个答案中所指出的.但这不是你所要求的.

幸运的是,还有另一个选项 - 使用插件依赖项 - 在使用插件依赖项而不是项目依赖项中记录:

有时,在不影响项目依赖性的情况下执行Java类是可取的.例如,如果您使用的是Maven csharp插件,那么将Java依赖项添加到项目中将会破坏csharp编译器.因此,Exec Maven插件允许您将可执行类的依赖项指定为插件依赖项.由于Maven在确定多模块项目的构建顺序时会考虑插件依赖性,因此构建顺序应自动进行适当调整(我认为).

[...]

这应该是诀窍.有关exec-maven-plugin配置和使用插件依赖关系的示例POM配置的更多详细信息,请参阅上面给出的链接.

PS:我在这里有点困惑因为exec:java抱怨无法找到pom.xml(" Cannot execute mojo: java. It requires a project with an existing pom.xml, but the build is not using one.").也许只是跟踪不准确,但这让我怀疑父母的位置.

PPS:PS不再适用,OP已用正确的跟踪更新了问题.