默认打包方式如下：
<build>
<finalName>${project.artifactId}</finalName>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<executions>
<execution>
<goals>
<goal>repackage</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>新打包方式
1、添加资源引用
包含如下保和文件格式
<resources>
<resource>
<directory>src/main/java</directory>
<filtering>true</filtering>
</resource>
<resource>
<directory>src/main/resources</directory>
<includes>
<include>**.*</include>
<include>**/*.properties</include>
<include>**/*.xml</include>
<include>**/*.*</include>
</includes>
<filtering>true</filtering>
</resource>
</resources>2、jar打包插件
一定需要添加启动类<mainClass>com.xxx.xxx.xxx</mainClass>自己修改
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<version>3.1.0</version>
<configuration>
<!-- 包含文件配置，现在只打包 com 文件夹 -->
<includes>
<include>
**/com/**
</include>
</includes>
<archive>
<manifest>
<!-- 配置加入依赖包 -->
<addClasspath>true</addClasspath>
<classpathPrefix>lib/</classpathPrefix>
<useUniqueVersions>false</useUniqueVersions>
<!-- Spring Boot 启动类(自行修改) -->
<mainClass>com.xxx.xxx.xxx</mainClass>
</manifest>
<manifestEntries>
<!-- 外部资源路径加入 manifest.mf 的 Class-Path -->
<Class-Path>resources/</Class-Path>
</manifestEntries>
</archive>
<!-- jar 输出目录 -->
<outputDirectory>${project.build.directory}/build/</outputDirectory>
</configuration>
</plugin>3、依赖库打包
把依赖文件打包到lib目录
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<!-- 复制依赖 -->
<executions>
<execution>
<id>copy-dependencies</id>
<phase>package</phase>
<goals>
<goal>copy-dependencies</goal>
</goals>
<configuration>
<!-- 依赖包 输出目录 -->
<outputDirectory>${project.build.directory}/build/lib</outputDirectory>
</configuration>
</execution>
</executions>
</plugin>4、资源打包
导报到resources目录下面
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-resources-plugin</artifactId>
<!-- 复制资源 -->
<executions>
<execution>
<id>copy-resources</id>
<phase>package</phase>
<goals>
<goal>copy-resources</goal>
</goals>
<configuration>
<resources>
<resource>
<directory>src/main/resources</directory>
</resource>
</resources>
<!-- 资源文件 输出目录 -->
<outputDirectory>${project.build.directory}/build/resources</outputDirectory>
</configuration>
</execution>
</executions>
</plugin>最终打包格式
<build>
<!-- 为jar包取名 -->
<finalName>${project.artifactId}</finalName>
<resources>
<resource>
<directory>src/main/java</directory>
<filtering>true</filtering>
</resource>
<resource>
<directory>src/main/resources</directory>
<includes>
<include>**.*</include>
<include>**/*.properties</include>
<include>**/*.xml</include>
<include>**/*.*</include>
</includes>
<filtering>true</filtering>
</resource>
</resources>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<version>3.1.0</version>
<configuration>
<!-- 包含文件配置，现在只打包 com 文件夹 -->
<includes>
<include>
**/com/**
</include>
</includes>
<archive>
<manifest>
<!-- 配置加入依赖包 -->
<addClasspath>true</addClasspath>
<classpathPrefix>lib/</classpathPrefix>
<useUniqueVersions>false</useUniqueVersions>
<!-- Spring Boot 启动类(自行修改) -->
<mainClass>com.xx.xxx.xxx</mainClass>
</manifest>
<manifestEntries>
<!-- 外部资源路径加入 manifest.mf 的 Class-Path -->
<Class-Path>resources/</Class-Path>
</manifestEntries>
</archive>
<!-- jar 输出目录 -->
<outputDirectory>${project.build.directory}/build/</outputDirectory>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<!-- 复制依赖 -->
<executions>
<execution>
<id>copy-dependencies</id>
<phase>package</phase>
<goals>
<goal>copy-dependencies</goal>
</goals>
<configuration>
<!-- 依赖包 输出目录 -->
<outputDirectory>${project.build.directory}/build/lib</outputDirectory>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-resources-plugin</artifactId>
<!-- 复制资源 -->
<executions>
<execution>
<id>copy-resources</id>
<phase>package</phase>
<goals>
<goal>copy-resources</goal>
</goals>
<configuration>
<resources>
<resource>
<directory>src/main/resources</directory>
</resource>
</resources>
<!-- 资源文件 输出目录 -->
<outputDirectory>${project.build.directory}/build/resources</outputDirectory>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>然后再命令窗口进行打包操作
mvn clean package -Dmaven.test.skip=true打包目录如下，在target下面，build 目录下面包含两个文件夹和一个jar包，lib存储依赖的包，resources包含着配置资源，具体如下展示
执行：
java -Dfile.encoding=utf-8 -jar xxxxx.jar
