1.使用idea打包

选择module

 选择Main Class

 

build

 

 

 

 2.使用maven打包

<build>
        <plugins>
            <plugin>
                <artifactId>maven-jar-plugin</artifactId>
                <configuration>
                    <archive>
                        <manifest>
                            <mainClass>com.demo.Test</mainClass>
                        </manifest>
                    </archive>
                </configuration>
            </plugin>
        </plugins>
    </build>

 

mvn clean

mvn package