无法从 pom.xml 执行 mainClass答案

【问题标题】：not able to execute mainClass from pom.xml无法从 pom.xml 执行 mainClass
【发布时间】：2016-06-22 00:02:23
【问题描述】：

我正在尝试执行pom.xml，其中提到了mainClass，但它没有被执行。

命令：mvn test -f "path_to_pom.xml\pom.xml"

输出：

[INFO] Scanning for projects...
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building Project 0.0.1-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO]
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @Project ---
[WARNING] Using platform encoding (Cp1252 actually) to copy filtered resources,
i.e. build is platform dependent!
[INFO] Copying 3 resources
[INFO]
[INFO] --- maven-compiler-plugin:3.3:compile (default-compile) @ Project ---
[INFO] Nothing to compile - all classes are up to date
[INFO]
[INFO] --- maven-resources-plugin:2.6:testResources (default-testResources) @ Project ---
[WARNING] Using platform encoding (Cp1252 actually) to copy filtered resources,
i.e. build is platform dependent!
[INFO] skip non existing resourceDirectory D:\Personal\selenium\Project\src\test\resources
[INFO]
[INFO] --- maven-compiler-plugin:3.3:testCompile (default-testCompile) @Project ---
[INFO] Changes detected - recompiling the module!
[WARNING] File encoding has not been set, using platform encoding Cp1252, i.e. b
uild is platform dependent!
[INFO] Compiling 5 source files to D:\Personal\selenium\Project\target\test-classes
[INFO]
[INFO] --- maven-surefire-plugin:2.18.1:test (default-test) @ Project ---
[WARNING] useSystemClassloader setting has no effect when not forking
[INFO] Surefire report directory: D:\Personal\selenium\Project\target\surefire-reports
Running test.java.com.utilities.TestController
Configuring TestNG with: TestNG652Configurator
Tests run: 0, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.295 sec - in t
est.java.com.utilities.TestController

Results :

Tests run: 0, Failures: 0, Errors: 0, Skipped: 0

[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 3.138 s
[INFO] Finished at: 2016-03-08T11:45:54+05:30
[INFO] Final Memory: 20M/225M
[INFO] ------------------------------------------------------------------------

我尝试从 Eclipse IDE 执行它，但也没有从那里执行。

但是，在 cmd 的 maven 命令中指定 -DmainClass="<className>"，类正在执行。

以下是来自 pom.xml 的条目：

<plugin>
    <groupId>org.codehaus.mojo</groupId>
    <artifactId>exec-maven-plugin</artifactId>
    <version>1.2.1</version>
    <executions>
        <execution>
            <goals>
                <goal>java</goal>
            </goals>
        </execution>
    </executions>
    <configuration>
        <mainClass>test.java.com.utilities.TestController</mainClass>
    </configuration>
</plugin>

我已经做了 mvn clean 和 Maven > Update Project 但没有帮助。

问题：我还可以做哪些其他更改来完成这项工作？

【问题讨论】：

请显示完整的 pom 文件
-DmainClass 应该不行，命令行属性是exec.mainClass，你确定吗？

标签： java eclipse maven pom.xml exec-maven-plugin

【解决方案1】：

您想在testphase 期间执行该类，因此您应该将其添加到您的插件execution。此外，您似乎正在从测试包中运行一个类，它可能还需要test classpath 才能正确执行。

然后，我将对您发布的配置应用以下更改：

<plugin>
    <groupId>org.codehaus.mojo</groupId>
    <artifactId>exec-maven-plugin</artifactId>
    <version>1.2.1</version>
    <executions>
        <execution>
            <phase>test</phase> <!-- ADDED -->
            <goals>
                <goal>java</goal>
            </goals>
        </execution>
    </executions>
    <configuration>
        <mainClass>test.java.com.utilities.TestController</mainClass>
        <classpathScope>test</classpathScope> <!-- ADDED -->
    </configuration>
</plugin>

注意通过 cmets 突出显示的 ADDED 元素。

【讨论】：