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我想将target/classes目录添加到 Maven 的exec:java类路径中。编译和运行时依赖关系处理得很好，但是从中复制的资源src/*/resources在执行期间不可用。我几乎可以肯定这是因为插件的类路径只包含项目依赖项而不是target/classes目录。我希望能够在开发过程中运行应用程序，mvn clean compile exec:java 同时将所有属性文件和其他文件留在资源目录中。

我尝试了几种 exec 配置变体，但似乎无法正确：

我的 pom.xml：

<plugin>
  <groupId>org.codehaus.mojo</groupId>
  <artifactId>exec-maven-plugin</artifactId>
  <version>1.2.1</version>
  <configuration>
    <executable>java</executable>
    <mainClass>Example</mainClass>
    <arguments>
        <argument>-cp</argument>
        <classpath/>
        <argument>%classpath:target/classes</argument>

        <argument>someFile.txt</argument>
    </arguments>
  </configuration>
</plugin>

我不认为这是正确的语法，因为我得到了一个 ArrayStoreException：

java.lang.ArrayStoreException
at java.lang.System.arraycopy(Native Method)
at java.util.Arrays.copyOf(Arrays.java:2763)
at java.util.ArrayList.toArray(ArrayList.java:305)
at org.codehaus.plexus.component.configurator.converters.composite.ArrayConverter.fromConfiguration(ArrayConverter.java:141)
at org.codehaus.plexus.component.configurator.converters.ComponentValueSetter.configure(ComponentValueSetter.java:247)
at org.codehaus.plexus.component.configurator.converters.composite.ObjectWithFieldsConverter.processConfiguration(ObjectWithFieldsConverter.java:137)
at org.codehaus.plexus.component.configurator.BasicComponentConfigurator.configureComponent(BasicComponentConfigurator.java:56)
at org.apache.maven.plugin.DefaultPluginManager.populatePluginFields(DefaultPluginManager.java:1357)
at org.apache.maven.plugin.DefaultPluginManager.getConfiguredMojo(DefaultPluginManager.java:724)
at org.apache.maven.plugin.DefaultPluginManager.executeMojo(DefaultPluginManager.java:468)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:694)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeStandaloneGoal(DefaultLifecycleExecutor.java:569)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal(DefaultLifecycleExecutor.java:539)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHandleFailures(DefaultLifecycleExecutor.java:387)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegments(DefaultLifecycleExecutor.java:348)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecutor.java:180)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:328)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:138)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:362)
at org.apache.maven.cli.compat.CompatibleMain.main(CompatibleMain.java:60)
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.jav

我从这里和这里使用了示例配置 pom 。

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1 回答 1

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By default the target/classes and all the dependencies are in the classpath when you use exec-maven-plugin plugin.

I have similar setup and following config works for me. In my Test class I read one xml file as Thread.currentThread().getContextClassLoader().getResourceAsStream("mapping.xml"). I have kept the file in src/main/resources which after build is available under target/classes.

<plugin>
    <groupId>org.codehaus.mojo</groupId>
    <artifactId>exec-maven-plugin</artifactId>
    <version>1.2.1</version>
    <executions>
        <execution>
            <goals>
                <goal>exec</goal>
            </goals>
        </execution>
    </executions>
    <configuration>
        <executable>java</executable>
        <mainClass>com.Test</mainClass>
    </configuration>
</plugin>
于 2013-04-22T04:40:59.180 回答