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一、注意

运行 Maven 构建命令时，必须进入到含有 pom.xml文件的目录中。如果没有在 pom.xml 所在的目录运行 Maven 的构建命令，就会发生错误：The goal you specified requires a project to execute but there is no POM in this directory

二、🚀清理操作的命令

命令：

mvn clean

效果：

删除 target 目录
（代码为成功效果演示，可忽略…）

D:\maven-workspace\spaceVedio\pro03-maven-parent>mvn clean[INFO] Scanning for projects...[INFO] ------------------------------------------------------------------------[INFO] Reactor Build Order:[INFO][INFO] pro03-maven-parent                     [pom][INFO] pro06-maven-module                     [jar][INFO] pro05-maven-module                     [jar][INFO] pro04-maven-module                     [jar][INFO][INFO] ----------------< cpm.haojin.maven:pro03-maven-parent >-----------------[INFO] Building pro03-maven-parent 1.0-SNAPSHOT                           [1/4][INFO] --------------------------------[ pom ]---------------------------------[INFO][INFO] --- maven-clean-plugin:2.5:clean (default-clean) @ pro03-maven-parent ---[INFO][INFO] ----------------< cpm.haojin.maven:pro06-maven-module >-----------------[INFO] Building pro06-maven-module 1.0-SNAPSHOT                           [2/4][INFO] --------------------------------[ jar ]---------------------------------[INFO][INFO] --- maven-clean-plugin:2.5:clean (default-clean) @ pro06-maven-module ---[INFO] Deleting D:\maven-workspace\spaceVedio\pro03-maven-parent\pro06-maven-module\target[INFO][INFO] ----------------< cpm.haojin.maven:pro05-maven-module >-----------------[INFO] Building pro05-maven-module 1.0-SNAPSHOT                           [3/4][INFO] --------------------------------[ jar ]---------------------------------[INFO][INFO] --- maven-clean-plugin:2.5:clean (default-clean) @ pro05-maven-module ---[INFO] Deleting D:\maven-workspace\spaceVedio\pro03-maven-parent\pro05-maven-module\target[INFO][INFO] ----------------< com.haojin.maven:pro04-maven-module >-----------------[INFO] Building pro04-maven-module 1.0-SNAPSHOT                           [4/4][INFO] --------------------------------[ jar ]---------------------------------[INFO][INFO] --- maven-clean-plugin:2.5:clean (default-clean) @ pro04-maven-module ---[INFO] Deleting D:\maven-workspace\spaceVedio\pro03-maven-parent\pro04-maven-module\target[INFO] ------------------------------------------------------------------------[INFO] Reactor Summary for pro03-maven-parent 1.0-SNAPSHOT:[INFO][INFO] pro03-maven-parent ................................. SUCCESS [  0.104 s][INFO] pro06-maven-module ................................. SUCCESS [  0.024 s][INFO] pro05-maven-module ................................. SUCCESS [  0.030 s][INFO] pro04-maven-module ................................. SUCCESS [  0.030 s][INFO] ------------------------------------------------------------------------[INFO] BUILD SUCCESS[INFO] ------------------------------------------------------------------------[INFO] Total time:  0.289 s[INFO] Finished at: 2022-11-27T12:55:29+08:00[INFO] ------------------------------------------------------------------------

三、🚀编译操作的命令

命令 - 效果：

编译主程序的命令：mvn compile编译测试程序的命令：mvn test-compile

• 主体程序编译后的结果存放在target/classes目录下
• 测试程序编译后的结果存放在target/test-classes目录下

四、🚀测试操作的命令

命令：

mvn test

效果：
对工程中 test目录 下的程序进行测试，测试的报告放在target/surefire-reports目录

五、🚀打包操作的命令

命令：

mvn package

效果：

执行命令的工程会被打包成 —— jar包，得到的jar包被存放在target目录中

六、🚀安装操作的命令

命令：

mvn intall

效果：

将本地构建过程中生成的 jar 包存入 Maven 本地仓库。
（代码为成功效果演示，可忽略… 示例的pro03-maven-parent工程是打包方式为pom的管理子工程的工程，其与其子工程生成的jar包就会被存放到本地仓库的指定路径中去）

D:\maven-workspace\spaceVedio\pro03-maven-parent>mvn install[INFO] Scanning for projects...[INFO] ------------------------------------------------------------------------[INFO] Reactor Build Order:[INFO][INFO] pro03-maven-parent                     [pom][INFO] pro06-maven-module                     [jar][INFO] pro05-maven-module                     [jar][INFO] pro04-maven-module                     [jar][INFO][INFO] ----------------< cpm.haojin.maven:pro03-maven-parent >-----------------[INFO] Building pro03-maven-parent 1.0-SNAPSHOT                           [1/4][INFO] --------------------------------[ pom ]---------------------------------[INFO][INFO] --- maven-install-plugin:2.4:install (default-install) @ pro03-maven-parent ---[INFO] Installing D:\maven-workspace\spaceVedio\pro03-maven-parent\pom.xml to d:\maven-repository\cpm\haojin\maven\pro03-maven-parent\1.0-SNAPSHOT\pro03-maven-parent-1.0-SNAPSHOT.pom[INFO][INFO] ----------------< cpm.haojin.maven:pro06-maven-module >-----------------[INFO] Building pro06-maven-module 1.0-SNAPSHOT                           [2/4][INFO] --------------------------------[ jar ]---------------------------------[INFO][INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ pro06-maven-module ---[INFO] Using 'UTF-8' encoding to copy filtered resources.[INFO] skip non existing resourceDirectory D:\maven-workspace\spaceVedio\pro03-maven-parent\pro06-maven-module\class="lazy" data-src\main\resources[INFO][INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ pro06-maven-module ---[INFO] Changes detected - recompiling the module![INFO] Compiling 1 source file to D:\maven-workspace\spaceVedio\pro03-maven-parent\pro06-maven-module\target\classes[INFO][INFO] --- maven-resources-plugin:2.6:testResources (default-testResources) @ pro06-maven-module ---[INFO] Using 'UTF-8' encoding to copy filtered resources.[INFO] skip non existing resourceDirectory D:\maven-workspace\spaceVedio\pro03-maven-parent\pro06-maven-module\class="lazy" data-src\test\resources[INFO][INFO] --- maven-compiler-plugin:3.1:testCompile (default-testCompile) @ pro06-maven-module ---[INFO] Changes detected - recompiling the module![INFO] Compiling 1 source file to D:\maven-workspace\spaceVedio\pro03-maven-parent\pro06-maven-module\target\test-classes[INFO][INFO] --- maven-surefire-plugin:2.12.4:test (default-test) @ pro06-maven-module ---[INFO] Surefire report directory: D:\maven-workspace\spaceVedio\pro03-maven-parent\pro06-maven-module\target\surefire-reports------------------------------------------------------- T E S T S-------------------------------------------------------Running cpm.haojin.maven.AppTestTests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.007 secResults :Tests run: 1, Failures: 0, Errors: 0, Skipped: 0[INFO][INFO] --- maven-jar-plugin:2.4:jar (default-jar) @ pro06-maven-module ---[INFO] Building jar: D:\maven-workspace\spaceVedio\pro03-maven-parent\pro06-maven-module\target\pro06-maven-module-1.0-SNAPSHOT.jar[INFO][INFO] --- maven-install-plugin:2.4:install (default-install) @ pro06-maven-module ---[INFO] Installing D:\maven-workspace\spaceVedio\pro03-maven-parent\pro06-maven-module\target\pro06-maven-module-1.0-SNAPSHOT.jar to d:\maven-repository\cpm\haojin\maven\pro06-maven-module\1.0-SNAPSHOT\pro06-maven-module-1.0-SNAPSHOT.jar[INFO] Installing D:\maven-workspace\spaceVedio\pro03-maven-parent\pro06-maven-module\pom.xml to d:\maven-repository\cpm\haojin\maven\pro06-maven-module\1.0-SNAPSHOT\pro06-maven-module-1.0-SNAPSHOT.pom[INFO][INFO] ----------------< cpm.haojin.maven:pro05-maven-module >-----------------[INFO] Building pro05-maven-module 1.0-SNAPSHOT                           [3/4][INFO] --------------------------------[ jar ]---------------------------------[INFO][INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ pro05-maven-module ---[INFO] Using 'UTF-8' encoding to copy filtered resources.[INFO] skip non existing resourceDirectory D:\maven-workspace\spaceVedio\pro03-maven-parent\pro05-maven-module\class="lazy" data-src\main\resources[INFO][INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ pro05-maven-module ---[INFO] Changes detected - recompiling the module![INFO] Compiling 1 source file to D:\maven-workspace\spaceVedio\pro03-maven-parent\pro05-maven-module\target\classes[INFO][INFO] --- maven-resources-plugin:2.6:testResources (default-testResources) @ pro05-maven-module ---[INFO] Using 'UTF-8' encoding to copy filtered resources.[INFO] skip non existing resourceDirectory D:\maven-workspace\spaceVedio\pro03-maven-parent\pro05-maven-module\class="lazy" data-src\test\resources[INFO][INFO] --- maven-compiler-plugin:3.1:testCompile (default-testCompile) @ pro05-maven-module ---[INFO] Changes detected - recompiling the module![INFO] Compiling 1 source file to D:\maven-workspace\spaceVedio\pro03-maven-parent\pro05-maven-module\target\test-classes[INFO][INFO] --- maven-surefire-plugin:2.12.4:test (default-test) @ pro05-maven-module ---[INFO] Surefire report directory: D:\maven-workspace\spaceVedio\pro03-maven-parent\pro05-maven-module\target\surefire-reports------------------------------------------------------- T E S T S-------------------------------------------------------Running cpm.haojin.maven.AppTestTests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.005 secResults :Tests run: 1, Failures: 0, Errors: 0, Skipped: 0[INFO][INFO] --- maven-jar-plugin:2.4:jar (default-jar) @ pro05-maven-module ---[INFO] Building jar: D:\maven-workspace\spaceVedio\pro03-maven-parent\pro05-maven-module\target\pro05-maven-module-1.0-SNAPSHOT.jar[INFO][INFO] --- maven-install-plugin:2.4:install (default-install) @ pro05-maven-module ---[INFO] Installing D:\maven-workspace\spaceVedio\pro03-maven-parent\pro05-maven-module\target\pro05-maven-module-1.0-SNAPSHOT.jar to d:\maven-repository\cpm\haojin\maven\pro05-maven-module\1.0-SNAPSHOT\pro05-maven-module-1.0-SNAPSHOT.jar[INFO] Installing D:\maven-workspace\spaceVedio\pro03-maven-parent\pro05-maven-module\pom.xml to d:\maven-repository\cpm\haojin\maven\pro05-maven-module\1.0-SNAPSHOT\pro05-maven-module-1.0-SNAPSHOT.pom[INFO][INFO] ----------------< com.haojin.maven:pro04-maven-module >-----------------[INFO] Building pro04-maven-module 1.0-SNAPSHOT                           [4/4][INFO] --------------------------------[ jar ]---------------------------------[INFO][INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ pro04-maven-module ---[INFO] Using 'UTF-8' encoding to copy filtered resources.[INFO] skip non existing resourceDirectory D:\maven-workspace\spaceVedio\pro03-maven-parent\pro04-maven-module\class="lazy" data-src\main\resources[INFO][INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ pro04-maven-module ---[INFO] Changes detected - recompiling the module![INFO] Compiling 1 source file to D:\maven-workspace\spaceVedio\pro03-maven-parent\pro04-maven-module\target\classes[INFO][INFO] --- maven-resources-plugin:2.6:testResources (default-testResources) @ pro04-maven-module ---[INFO] Using 'UTF-8' encoding to copy filtered resources.[INFO] skip non existing resourceDirectory D:\maven-workspace\spaceVedio\pro03-maven-parent\pro04-maven-module\class="lazy" data-src\test\resources[INFO][INFO] --- maven-compiler-plugin:3.1:testCompile (default-testCompile) @ pro04-maven-module ---[INFO] Changes detected - recompiling the module![INFO] Compiling 1 source file to D:\maven-workspace\spaceVedio\pro03-maven-parent\pro04-maven-module\target\test-classes[INFO][INFO] --- maven-surefire-plugin:2.12.4:test (default-test) @ pro04-maven-module ---[INFO] Surefire report directory: D:\maven-workspace\spaceVedio\pro03-maven-parent\pro04-maven-module\target\surefire-reports------------------------------------------------------- T E S T S-------------------------------------------------------Running com.haojin.maven.AppTestTests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.008 secResults :Tests run: 1, Failures: 0, Errors: 0, Skipped: 0[INFO][INFO] --- maven-jar-plugin:2.4:jar (default-jar) @ pro04-maven-module ---[INFO] Building jar: D:\maven-workspace\spaceVedio\pro03-maven-parent\pro04-maven-module\target\pro04-maven-module-1.0-SNAPSHOT.jar[INFO][INFO] --- maven-install-plugin:2.4:install (default-install) @ pro04-maven-module ---[INFO] Installing D:\maven-workspace\spaceVedio\pro03-maven-parent\pro04-maven-module\target\pro04-maven-module-1.0-SNAPSHOT.jar to d:\maven-repository\com\haojin\maven\pro04-maven-module\1.0-SNAPSHOT\pro04-maven-module-1.0-SNAPSHOT.jar[INFO] Installing D:\maven-workspace\spaceVedio\pro03-maven-parent\pro04-maven-module\pom.xml to d:\maven-repository\com\haojin\maven\pro04-maven-module\1.0-SNAPSHOT\pro04-maven-module-1.0-SNAPSHOT.pom[INFO] ------------------------------------------------------------------------[INFO] Reactor Summary for pro03-maven-parent 1.0-SNAPSHOT:[INFO][INFO] pro03-maven-parent ................................. SUCCESS [  0.171 s][INFO] pro06-maven-module ................................. SUCCESS [  1.400 s][INFO] pro05-maven-module ................................. SUCCESS [  0.370 s][INFO] pro04-maven-module ................................. SUCCESS [  0.410 s][INFO] ------------------------------------------------------------------------[INFO] BUILD SUCCESS[INFO] ------------------------------------------------------------------------[INFO] Total time:  2.452 s[INFO] Finished at: 2022-11-27T13:18:56+08:00[INFO] ------------------------------------------------------------------------

——————————

被存放的 jar 包在 Maven 仓库中的路径是根据它的坐标生成的：

• 某个工程坐标：

  <groupId>cpm.haojin.maven</groupId>  <artifactId>pro04-maven-module</artifactId>  <version>1.0-SNAPSHOT</version>

• 生成的路径：

D:\maven-repository\com\haojin\maven\pro04-maven-module\1.0-SNAPSHOT\pro04-maven-module-1.0-SNAPSHOT.jar

来源地址：https://blog.csdn.net/ebb29bbe/article/details/128055704