Springboot 项目 maven 打包不包含第三方jar包

Maven 打包的时候，如果包含了第三方的jar包，这个打出来的jar文件会很大，所有有时候我们希望在打包的过程中不包含第三方的jar文件。

1. 如何打一个不包含第三方jar文件的包呢？

   只需在pom文件中加入下面的代码即可

<plugin>
   <groupId>org.springframework.boot</groupId>
   <artifactId>spring-boot-maven-plugin</artifactId>
   <dependencies>
      <dependency>
         <!-- generate jar without third part jars -->
         <groupId>org.springframework.boot.experimental</groupId>
         <artifactId>spring-boot-thin-layout</artifactId>
         <version>1.0.12.RELEASE</version>
      </dependency>
   </dependencies>
   <executions>
      <execution>
         <goals>
            <goal>repackage</goal>
         </goals>
      </execution>
   </executions>
</plugin>

2. 如果打出来的包不包含第三方jar是没法运行的，所以我们想把第三方的jar也自动生成到某个目录下

<!-- Copy all third part jars to lib directory-->
<plugin>
   <groupId>org.apache.maven.plugins</groupId>
   <artifactId>maven-dependency-plugin</artifactId>
   <executions>
      <execution>
         <id>copy-dependencies</id>
         <phase>prepare-package</phase>
         <goals>
            <goal>copy-dependencies</goal>
         </goals>
         <configuration>
            <outputDirectory>${project.build.directory}/lib</outputDirectory>
            <overWriteReleases>false</overWriteReleases>
            <overWriteSnapshots>false</overWriteSnapshots>
            <overWriteIfNewer>true</overWriteIfNewer>
         </configuration>
      </execution>
   </executions>
</plugin>

3. 有时候想要同时打出包含第三方jar文件的包和不包含第三方jar文件的包，加入下面代码就能打出包含第三方文件的包

<!-- generate package include third part jar-->
<plugin>
   <artifactId>maven-assembly-plugin</artifactId>
   <configuration>
      <descriptorRefs>
         <descriptorRef>jar-with-dependencies</descriptorRef>
      </descriptorRefs>
      <archive>
         <manifest>
            <mainClass></mainClass>
         </manifest>
      </archive>
   </configuration>
   <executions>
      <execution>
         <id>make-assembly</id>
         <phase>package</phase>
         <goals>
            <goal>single</goal>
         </goals>
      </execution>
   </executions>
</plugin>