maven 打jar包:mvn clean package

1.打包插件配置:

在maven项目的pom.xml文件中加入maven的打包插件:

<build>
    <plugins>
<!--Spring Boot包含的maven打包插件 -->
        <plugin>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-maven-plugin</artifactId>
        </plugin>
    </plugins>
</build>

2.在cmd中,先把命令行切换到Maven项目的根目录,如:D:\微服务架构\ch3 ,执行打包命令:

mvn clean package

执行结果如下:

[INFO] Scanning for projects...
[INFO]
[INFO] --------------------------< com.example:demo >--------------------------
[INFO] Building demo 0.0.1-SNAPSHOT
[INFO] --------------------------------[ jar ]---------------------------------
[INFO]
[INFO] --- maven-clean-plugin:3.1.0:clean (default-clean) @ demo ---
[INFO] Deleting D:\微服务架构\ch3\target
[INFO]
[INFO] --- maven-resources-plugin:3.2.0:resources (default-resources) @ demo ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] Using 'UTF-8' encoding to copy filtered properties files.
[INFO] Copying 1 resource
[INFO] Copying 892 resources
[INFO]
[INFO] --- maven-compiler-plugin:3.8.1:compile (default-compile) @ demo ---
[INFO] Changes detected - recompiling the module!
[INFO] Compiling 8 source files to D:\微服务架构\ch3\target\classes
[INFO]
[INFO] --- maven-resources-plugin:3.2.0:testResources (default-testResources) @ demo ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] Using 'UTF-8' encoding to copy filtered properties files.
[INFO] skip non existing resourceDirectory D:\微服务架构\ch3\src\test\resources
[INFO]
[INFO] --- maven-compiler-plugin:3.8.1:testCompile (default-testCompile) @ demo ---
[INFO] Changes detected - recompiling the module!
[INFO]
[INFO] --- maven-surefire-plugin:2.22.2:test (default-test) @ demo ---
[INFO]
[INFO] --- maven-jar-plugin:3.2.2:jar (default-jar) @ demo ---
[INFO] Building jar: D:\微服务架构\ch3\target\demo-0.0.1-SNAPSHOT.jar
[INFO]
[INFO] --- spring-boot-maven-plugin:2.6.4:repackage (repackage) @ demo ---
[INFO] Replacing main artifact with repackaged archive
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 49.376 s
[INFO] Finished at: 2022-04-11T16:49:42+08:00
[INFO] ------------------------------------------------------------------------

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上述执行顺序:

(1)使用清理插件:maven-clean-plugin:2.5执行清理删除已有target目录;

(2)使用资源插件:maven-resources-plugin:2.6执行资源文件的处理;

(3)使用编译插件:maven-compiler-plugin:3.1编译所有源文件生成class文件至target\classes目录下;

(4)使用资源插件:maven-resources-plugin:2.6执行测试资源文件的处理;

(5)使用编译插件:maven-compiler-plugin:3.1编译测试目录下的所有源代码;

(6)使用插件:maven-surefire-plugin:2.12运行测试用例;

(7)使用插件:maven-jar-plugin:2.4对编译后生成的文件进行打包,包名称默认为:artifactId-version,比如本例生成的jar文件:demo-0.0.1-SNAPSHOT.jar,包文件保存在target目录下。

3.执行jar包,启动项目:

进入 D:\微服务架构\ch3\target 目录,执行jar包

java -jar demo-0.0.1-SNAPSHOT.jar

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