我正在尝试从使用maven创建的命令行运行Java10“ hello world”示例。
但是我收到消息了
错误:在模块eu.ngong.mainclass中找不到或加载主类App
它与
一起使用mvn exec:java -Dexec.mainClass=eu.ngong.mainclass.App
但是如果我运行脚本则不会
p=~/.m2/repository/eu/ngong/mainclass/1.0.0
java -p $p -m eu.ngong.mainclass.App
pom.xml是:
<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>eu.ngong</groupId>
<artifactId>mainclass</artifactId>
<version>1.0.0</version>
<packaging>jar</packaging>
<name>mainclass</name>
<url>http://maven.apache.org</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<build>
<pluginManagement>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.8.0</version>
<configuration>
<release>10</release>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<version>3.1.0</version>
<configuration>
<archive>
<manifest>
<mainClass>eu.ngong.mainclass.App</mainClass>
</manifest>
</archive>
</configuration>
</plugin>
</plugins>
</pluginManagement>
</build>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
</dependency>
</dependencies>
如果我看着罐子,我可以找到App类以及MANIFEST.MF
Manifest-Version: 1.0
Created-By: Apache Maven 3.5.4
Built-By: rsc
Build-Jdk: 10.0.2
Main-Class: eu.ngong.mainclass.App
我想念什么?
我推动了项目here
答案 0 :(得分:1)
尝试使用<addClasspath>true</addClasspath>
和下面的configuration
下的maven-jar-plugin更新pom。未设置类路径时,无法正确找到主类。
<archive>
<manifest>
<addClasspath>true</addClasspath>
<mainClass>eu.ngong.mainclass.App</mainClass>
</manifest>
</archive>