在用springboot开发项目是，打包好的jar包是可以直接运行的，但是通常情况下，这个jar都会很大，因为他默认打包了所有依赖的jar包。此时就可以通过maven-dependency-plugin等插件将依赖包复制到独立的文件夹，在启动jar包的时候引用即可。
Pom文件配置
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.4.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.test</groupId>
<artifactId>test</artifactId>
<version>0.0.1</version>
<name>test</name>
<description>test project for Spring Boot</description>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<!-- 热部署 -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.json</groupId>
<artifactId>json</artifactId>
<version>20160212</version>
</dependency>
<dependency>
<groupId>net.sf.json-lib</groupId>
<artifactId>json-lib</artifactId>
<version>2.4</version>
<classifier>jdk15</classifier>
</dependency>
</dependencies>
<build>
<!-- 打包输出的根目录 -->
<!-- <directory>target/${project.version}</directory> -->
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<fork>true</fork>
<!--skip配置 true 剔除spring-boot打包的org和BOOT-INF文件夹(用于子模块打包) false 不剔除，作为主程序 -->
<skip>false</skip>
<!-- 指定该jar包启动时的主类[建议] -->
<mainClass>com.rshare.RshareApplication</mainClass>
<layout>ZIP</layout>
<includes>
<!-- 排除第三方依赖jar(只保留本项目的jar) -->
<include>
<groupId>${project.groupId}</groupId>
<artifactId>${project.artifactId}</artifactId>
</include>
</includes>
</configuration>
</plugin>
<!-- 打源码包 -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-source-plugin</artifactId>
<configuration>
<attach>true</attach>
</configuration>
<executions>
<execution>
<id>attach-sources</id>
<phase>compile</phase>
<goals>
<goal>jar-no-fork</goal>
</goals>
</execution>
</executions>
</plugin>
<!-- 把项目依赖的第三方包打包在target/lib下 -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<executions>
<execution>
<id>copy-dependencies</id>
<phase>package</phase>
<goals>
<goal>copy-dependencies</goal>
</goals>
<configuration>
<outputDirectory>${project.build.directory}/lib</outputDirectory>
<excludeTransitive>false</excludeTransitive>
<stripVersion>false</stripVersion>
<includeScope>runtime</includeScope>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
<resources>
<!-- 打包src/main/java下的xml文件 -->
<resource>
<directory>src/main/java</directory>
<includes>
<include>**/*.xml</include>
</includes>
</resource>
<!-- 排除resources下的配置文件 -->
<resource>
<filtering>true</filtering>
<directory>src/main/resources</directory>
<excludes>
<exclude>static/**</exclude>
<exclude>*.yml</exclude>
<exclude>*.properties</exclude>
</excludes>
<targetPath>BOOT-INF/classes/</targetPath>
</resource>
<!-- 打包lib下的jar包 -->
<resource>
<directory>lib</directory>
<targetPath>BOOT-INF/lib/</targetPath>
<includes>
<include>**/*.jar</include>
</includes>
</resource>
</resources>
</build>
</project>
配置说明
maven-dependency-plugin：把项目依赖的第三方jar打包在target/lib下面
maven-source-plugin：打包源码，配置中指定了phase为compile，意思是在mvn生命周期为compile时将源文件打包，即只要执行的mvn命令包含compile阶段，就会将源代码打包。phase还可以指定为verify、package、install等
## 单独的打源码包命令：mvn source:jar 或 mvn source:test-jar（会生成在target目录下）
## 打包同时生成源码包：mvn clean source:jar install等
## 注意：在多项目构建中，将source-plugin置于顶层或parent的pom中并不会发挥作用，必须置于具体项目的pom中spring-boot-maven-plugin：springboot打包插件，只保留本项目运行的jar包
resources：排除了我们需要外置的文件
运行方式
将target下lib包和test.jar(运行包)以及src/main/resources下你需要外置的文件部署至服务器同一目录下，如：
lib
static
test.jar
*.yml
*.properties
运行命令：java -jar -Dloader.path=lib test.jar (多个path使用逗号分隔)
