pom.xml
<project>
<build>
<plugins>
<!--打包jar-->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<configuration>
<!--不打包资源文件-->
<excludes>
<exclude>*.**</exclude>
<exclude>*/*.xml</exclude>
</excludes>
<archive>
<manifest>
<addClasspath>true</addClasspath>
<!--MANIFEST.MF 中 Class-Path 加入前缀-->
<classpathPrefix>lib/</classpathPrefix>
<!--jar包不包含唯一版本标识-->
<useUniqueVersions>false</useUniqueVersions>
<!--指定入口类-->
<mainClass>site.yuyanjia.template.Application</mainClass>
</manifest>
<manifestEntries>
<!--MANIFEST.MF 中 Class-Path 加入资源文件目录-->
<Class-Path>./resources/</Class-Path>
</manifestEntries>
</archive>
<outputDirectory>${project.build.directory}</outputDirectory>
</configuration>
</plugin>
<!--拷贝依赖 copy-dependencies-->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<executions>
<execution>
<id>copy-dependencies</id>
<phase>package</phase>
<goals>
<goal>copy-dependencies</goal>
</goals>
<configuration>
<outputDirectory>
${project.build.directory}/lib/
</outputDirectory>
</configuration>
</execution>
</executions>
</plugin>
<!--拷贝资源文件 copy-resources-->
<plugin>
<artifactId>maven-resources-plugin</artifactId>
<executions>
<execution>
<id>copy-resources</id>
<phase>package</phase>
<goals>
<goal>copy-resources</goal>
</goals>
<configuration>
<resources>
<resource>
<directory>src/main/resources</directory>
</resource>
</resources>
<outputDirectory>${project.build.directory}/resources</outputDirectory>
</configuration>
</execution>
</executions>
</plugin>
<!--spring boot repackage，依赖 maven-jar-plugin 打包的jar包 重新打包成 spring boot 的jar包-->
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<!--重写包含依赖，包含不存在的依赖，jar里没有pom里的依赖-->
<includes>
<include>
<groupId>null</groupId>
<artifactId>null</artifactId>
</include>
</includes>
<layout>ZIP</layout>
<!--使用外部配置文件，jar包里没有资源文件-->
<addResources>true</addResources>
<outputDirectory>${project.build.directory}</outputDirectory>
</configuration>
<executions>
<execution>
<goals>
<goal>repackage</goal>
</goals>
<configuration>
<!--配置jar包特殊标识 配置后，保留原文件，生成新文件 *-run.jar -->
<!--配置jar包特殊标识 不配置，原文件命名为 *.jar.original，生成新文件 *.jar -->
<!--<classifier>run</classifier>-->
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>
运行打包命令 mvn package
执行jar包 java -jar spring-boot-template-0.0.1.jar
打包之后的目录结构
image.png
lib依赖jar包目录
resources配置文件目录
spring-boot-template-0.0.1.jar最终执行的jar包
spring-boot-template-0.0.1.jar.originalspringboot repackage 依赖的原jar包
resources目录
image.png
spring-boot-template-0.0.1.jar中的MANIFEST.MF
Manifest-Version: 1.0
Implementation-Title: spring-boot-template
Implementation-Version: 0.0.1
Built-By: seer
Implementation-Vendor-Id: site.yuyanjia
Class-Path: lib/mysql-connector-java-6.0.6.jar lib/shiro-spring-1.4.0.jar
中间省略若干配置
lib/spring-boot-2.0.2.RELEASE.jar ./resources/
Spring-Boot-Version: 2.0.2.RELEASE
Main-Class: org.springframework.boot.loader.PropertiesLauncher
Start-Class: site.yuyanjia.template.Application
Spring-Boot-Classes: BOOT-INF/classes/
Spring-Boot-Lib: BOOT-INF/lib/
Created-By: Apache Maven 3.5.0
Build-Jdk: 1.8.0_40
Implementation-URL: https://projects.spring.io/spring-boot/#/spring-boot-starter-parent/spring-boot-template
Class-Path最后的./resources/指示资源文件目录
有兴趣的可以看下 spring-boot-template-0.0.1.jar.original 中的MANIFEST.MF
spring-boot-template-0.0.1.jar目录结构
image.png
spring-boot-template-0.0.1.jar.original目录结构
image.png
参考文章
Spring cloud的Maven插件（一）：repackage目标
Springboot打jar包分离lib配置文件正确方式
Spring Boot Maven Plugin
