maven打jar包时如何把libs中的jar包一并打入

可以通过使用Maven Shade插件来实现将依赖的jar包打包到一个可执行jar包中。

首先，需要在pom.xml文件中添加以下插件配置：

<build>
    <plugins>
        <!--其他插件-->
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-shade-plugin</artifactId>
            <version>3.2.3</version>
            <executions>
                <execution>
                    <phase>package</phase>
                    <goals>
                        <goal>shade</goal>
                    </goals>
                    <configuration>
                        <createDependencyReducedPom>false</createDependencyReducedPom>
                        <filters>
                            <filter>
                                <artifact>*:*</artifact>
                                <excludes>
                                    <exclude>META-INF/*.SF</exclude>
                                    <exclude>META-INF/*.DSA</exclude>
                                    <exclude>META-INF/*.RSA</exclude>
                                </excludes>
                            </filter>
                        </filters>
                    </configuration>
                </execution>
            </executions>
        </plugin>
        <!--其他插件-->
    </plugins>
</build>

然后，执行`mvn clean package`命令即可将依赖的jar包打包到一个可执行jar包中。

需要注意的是，如果有多个main方法，需要在插件的配置中指定正确的main class：

<configuration>
    <createDependencyReducedPom>false</createDependencyReducedPom>
    <filters>
        <filter>
            <artifact>*:*</artifact>
            <excludes>
                <exclude>META-INF/*.SF</exclude>
                <exclude>META-INF/*.DSA</exclude>
                <exclude>META-INF/*.RSA</exclude>
            </excludes>
        </filter>
    </filters>
    <transformers>
        <transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
            <mainClass>com.example.MainClass</mainClass>
        </transformer>
    </transformers>
</configuration>