Maven和Java:目标org.codehaus.mojo的参数’mainClass’:exec-maven-plugin:1.2.1:java缺失或无效
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我的Java EE proj构建正常,但在尝试执行时会出现以下错误:
gert@gert-VirtualBox:~/workspace/CDBOOKSTORE$mvn exec:java
[INFO] Scanning for projects...
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building CDBOOKSTORE 0.0.1-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO]
[INFO] >>> exec-maven-plugin:1.2.1:java (default-cli) @ CDBOOKSTORE >>>
[INFO]
[INFO] --- maven-dependency-plugin:2.8:copy (default) @ CDBOOKSTORE ---
[INFO]
[INFO] <<< exec-maven-plugin:1.2.1:java (default-cli) @ CDBOOKSTORE <<<
[INFO]
[INFO] --- exec-maven-plugin:1.2.1:java (default-cli) @ CDBOOKSTORE ---
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 2.505s [INFO] Finished at: Fri Nov 08 14:01:40 EST 2013
[INFO] Final Memory: 9M/21M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.codehaus.mojo:exec-maven-plugin:1.2.1:java (default-cli) on project CDBOOKSTORE: The parameters 'mainClass' for goal org.codehaus.mojo:exec-maven-plugin:1.2.1:java are missing or invalid
-> [Help 1]
但是在我的pom.xml文件中(我按照Java EE书籍示例编辑过),我已经指定了mainClass配置:
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>org.aptovia.javaee7</groupId>
<artifactId>CDBOOKSTORE</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>app-client</packaging>
<name>CDBOOKSTORE</name>
<properties>
<endorsed.dir>${project.build.directory}/endorsed</endorsed.dir>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<dependencies>
<dependency>
<groupId>javax</groupId>
<artifactId>javaee-api</artifactId>
<version>7.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.jboss.weld.se</groupId>
<artifactId>weld-se</artifactId>
<version>2.1.0.Final</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.1</version>
<configuration>
<source>1.7</source>
<target>1.7</target>
<compilerArguments>
<endorseddirs>${endorsed.dir}</endorseddirs>
</compilerArguments>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-acr-plugin</artifactId>
<version>1.0</version>
<extensions>true</extensions>
<configuration>
<archive>
<manifest>
<mainClass>org.aptovia.javaee7.CDBOOKSTORE.Main</mainClass>
</manifest>
</archive>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<version>2.8</version>
<executions>
<execution>
<phase>validate</phase>
<goals>
<goal>copy</goal>
</goals>
<configuration>
<outputDirectory>${endorsed.dir}</outputDirectory>
<silent>true</silent>
<artifactItems>
<artifactItem>
<groupId>javax</groupId>
<artifactId>javaee-endorsed-api</artifactId>
<version>7.0</version>
<type>jar</type>
</artifactItem>
</artifactItems>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>exec-maven-plugin</artifactId>
<version>1.2.1</version>
<executions>
<execution>
<goals>
<goal>java</goal>
</goals>
<configuration>
<mainClass>org.aptovia.javaee7.CDBOOKSTORE.Main</mainClass>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>
根据这个也看起来不错:
https://www.mojohaus.org/exec-maven-plugin/usage.html
我做了一个mvn干净,重建,但仍然得到这个错误.真的不确定发生了什么:(
任何帮助非常感谢!
解决方法:
“配置”必须在“执行”之外,如下所示:
<plugins>
<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>com.emilio.App</mainClass>
</configuration>
</plugin>
</plugins>
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