Maven使用正确的文件夹路径在pom.xml中添加mainClass

Question

我想用我的maven项目得到一个工作的jar文件.

构建部分是:

<build>
    <plugins>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-checkstyle-plugin</artifactId>
            <version>2.14</version>
            <dependencies>
                <dependency>
                    <groupId>com.puppycrawl.tools</groupId>
                    <artifactId>checkstyle</artifactId>
                    <version>6.4.1</version>
                </dependency>
            </dependencies>
            <configuration>
                <consoleOutput>true</consoleOutput>
                <configLocation>${basedir}/src/test/resources/checkstyle_swt1.xml</configLocation>
            </configuration>
        </plugin>

        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-assembly-plugin</artifactId>
            <version>2.4</version>
            <configuration>
                <descriptor>src/assembly/src.xml</descriptor>
            </configuration>
            <executions>
                <execution>
                    <phase>package</phase>
                    <goals>
                        <goal>single</goal>
                    </goals>
                </execution>
            </executions>
        </plugin>

    </plugins>
    <pluginManagement>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.0</version>
                <configuration>
                    <source>1.7</source>
                    <target>1.7</target>
                    <archive>
                        <manifest>
                            <addDefaultImplementationEntries>true</addDefaultImplementationEntries>
                            <addDefaultSpecificationEntries>true</addDefaultSpecificationEntries>
                            <addClasspath>true</addClasspath>
                            <mainClass>org.jis.Main</mainClass>                                
                        </manifest>
                    </archive>
                </configuration>
            </plugin>
        </plugins>
    </pluginManagement>
</build>

所以我现在的问题是我不知道如何将mainclass正确地实现到我的pom.xml中以及稍后我的jar文件中.文件夹结构是:src/main/java/org/jis/Main.java但是如果我添加以下行

<mainClass>src.main.java.org.jis.Main</mainClass>

它不起作用.

提前致谢

Answer 1

首先,您的主要课程不包括src/main/java.查看该Java文件中的包声明.例如,package org.jis;然后将主类添加到该类.换句话说,它只是org.jis.Main.

您需要配置maven-jar-plugin而不是maven-compiler-plugin.jar-plugin是负责打包和创建manifest.MF的插件.

来自http://maven.apache.org/shared/maven-archiver/examples/classpath.html

  <build>
    <plugins>
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-jar-plugin</artifactId>
        ...
        <configuration>
          <archive>
            <manifest>
              <addClasspath>true</addClasspath>
              <mainClass>fully.qualified.MainClass</mainClass>
            </manifest>
          </archive>
        </configuration>
        ...
      </plugin>
    </plugins>
  </build>

Answer 2

如果它是 Spring Boot 应用程序，您可以在下面提及。

<build>
    <plugins>
        <plugin>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-maven-plugin</artifactId>
            <configuration>
                <mainClass>com.test.MainClass</mainClass>
            </configuration>                   
        </plugin>
    </plugins>
</build>