在pom.xml中配置以下代码，随后使用mvnw clean package打包

<build><plugins><plugin><groupId>org.springframework.boot</groupId><artifactId>spring-boot-maven-plugin</artifactId><configuration><!-- 主类地址，如我的项目中主类是com/server目录下的ServerDemoApplication.java，配置就如下 --><mainClass>com.server.ServerDemoApplication</mainClass><executable>true</executable><layout>ZIP</layout><includes><include><groupId>nothing</groupId><artifactId>nothing</artifactId></include></includes></configuration></plugin><!-- 将第三方包拷贝到lib目录 --><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></plugins></build>

启动打包的jar文件

java -Dloader.path=./lib -jar xxx.jar

pom.xml（完整代码）

<?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 https://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>3.1.1</version><relativePath/> <!-- lookup parent from repository --></parent><groupId>com.server</groupId><artifactId>server_name</artifactId><version>0.0.1-SNAPSHOT</version><name>server_name</name><description>Demo project for Spring Boot</description><properties><java.version>17</java.version></properties><repositories><repository><id>alimaven</id><name>aliyun maven</name><layout>default</layout><url>http://maven.aliyun.com/nexus/content/groups/public/</url></repository></repositories><pluginRepositories><pluginRepository><id>alimaven</id><url>http://maven.aliyun.com/nexus/content/groups/public/</url></pluginRepository></pluginRepositories><dependencies><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-test</artifactId><scope>test</scope></dependency><dependency><groupId>com.github.penggle</groupId><artifactId>kaptcha</artifactId><version>2.3.2</version></dependency><dependency><groupId>com.alibaba.fastjson2</groupId><artifactId>fastjson2</artifactId><version>2.0.32</version></dependency><dependency><groupId>com.baomidou</groupId><artifactId>mybatis-plus-boot-starter</artifactId><version>3.5.3</version></dependency><dependency><groupId>com.mysql</groupId><artifactId>mysql-connector-j</artifactId><scope>runtime</scope></dependency><dependency><groupId>com.alibaba</groupId><artifactId>easyexcel</artifactId><version>3.3.2</version></dependency></dependencies><build><plugins><plugin><groupId>org.springframework.boot</groupId><artifactId>spring-boot-maven-plugin</artifactId><configuration><!-- 主类地址，如我的项目中主类是com/server目录下的ServerDemoApplication.java，配置就如下 --><mainClass>com.server.ServerDemoApplication</mainClass><executable>true</executable><layout>ZIP</layout><includes><include><groupId>nothing</groupId><artifactId>nothing</artifactId></include></includes></configuration></plugin><!-- 将第三方包拷贝到lib目录 --><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></plugins></build></project>