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Maven

作者：程序诗人 | 2024-01-30 19:52:28

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Maven

Maven作用

方便的依赖管理

工程所需要的依赖，只需要坐标即可。

统一的项目结构

标准的构建流程

清理，编译，打包，安装，部署......

Maven的定义

maven是管理和构建项目的工具。

Maven仓库

本地仓库

先从本地仓库引用jar包。

中央仓库

本地没有，则从中央仓库下载。

私服

国内搭建的服务平台。

Maven坐标

一般三部分组成。

g

groupId 组织名。

a

artifactId 工程名。

v

version 版本号。

Maven高级

分模块设计

父类pom.xml

  1. <?xml version="1.0" encoding="UTF-8"?>
  2. <project xmlns="http://maven.apache.org/POM/4.0.0"
  3.          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  4.          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  5.     <modelVersion>4.0.0</modelVersion>
  6.  
  7.     <groupId>com.itheima</groupId>
  8.     <artifactId>tlias-pojo</artifactId>
  9.     <version>1.0-SNAPSHOT</version>
  10.  
  11.     <properties>
  12.         <maven.compiler.source>17</maven.compiler.source>
  13.         <maven.compiler.target>17</maven.compiler.target>
  14.         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
  15.     </properties>
  16.  
  17.     <!--引入父工程依赖-->
  18.     <parent>
  19.         <groupId>com.itheima</groupId>
  20.         <artifactId>tlias-parent</artifactId>
  21.         <version>1.0-SNAPSHOT</version>
  22.         <relativePath>../tlias-parent/pom.xml</relativePath>
  23.     </parent>
  24.  
  25.     <dependencies>
  26.         <!--lombok-->
  27.         <dependency>
  28.             <groupId>org.projectlombok</groupId>
  29.             <artifactId>lombok</artifactId>
  30.         </dependency>
  31.     </dependencies>
  32.  
  33.  
  34.     <build>
  35.         <plugins>
  36.             <plugin>
  37.                 <groupId>org.apache.maven.plugins</groupId>
  38.                 <artifactId>maven-compiler-plugin</artifactId>
  39.                 <configuration>
  40.                     <source>8</source>
  41.                     <target>8</target>
  42.                 </configuration>
  43.             </plugin>
  44.         </plugins>
  45.     </build>
  46. </project>

子类pom.xml文件

  1. <?xml version="1.0" encoding="UTF-8"?>
  2. <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  3.          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
  4.     <modelVersion>4.0.0</modelVersion>
  5.     <!--依赖引入父工程-->
  6.     <parent>
  7.         <groupId>com.itheima</groupId>
  8.         <artifactId>tlias-parent</artifactId>
  9.         <version>1.0-SNAPSHOT</version>
  10.         <relativePath>../tlias-parent/pom.xml</relativePath>
  11.     </parent>
  12.  
  13.     <groupId>com.itheima</groupId>
  14.     <artifactId>tlias-web-management</artifactId>
  15.     <version>0.0.1-SNAPSHOT</version>
  16.  
  17.     <properties>
  18.         <maven.compiler.source>17</maven.compiler.source>
  19.         <maven.compiler.target>17</maven.compiler.target>
  20.         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
  21.     </properties>
  22.  
  23.     <dependencies>
  24.  
  25.         <!--引入父类的依赖，就可以使用父类的配置，以及父类的代码-->
  26.         <!--引入pojo依赖-->
  27.         <dependency>
  28.             <groupId>com.itheima</groupId>
  29.             <artifactId>tlias-pojo</artifactId>
  30.             <version>1.0-SNAPSHOT</version>
  31.         </dependency>
  32.  
  33.         <!--引入utils-->
  34.         <dependency>
  35.             <groupId>com.itheima</groupId>
  36.             <artifactId>tlias-utils</artifactId>
  37.             <version>1.0-SNAPSHOT</version>
  38.         </dependency>
  39.  
  40.         <!--web起步依赖-->
  41.         <dependency>
  42.             <groupId>org.springframework.boot</groupId>
  43.             <artifactId>spring-boot-starter-web</artifactId>
  44.         </dependency>
  45.  
  46.         <!--mybatis起步依赖-->
  47.         <dependency>
  48.             <groupId>org.mybatis.spring.boot</groupId>
  49.             <artifactId>mybatis-spring-boot-starter</artifactId>
  50.             <version>2.2.2</version>
  51.         </dependency>
  52.  
  53.         <!--mysql驱动-->
  54.         <dependency>
  55.             <groupId>com.mysql</groupId>
  56.             <artifactId>mysql-connector-j</artifactId>
  57.             <scope>runtime</scope>
  58.         </dependency>
  59.  
  60.         <!--springboot单元测试-->
  61.         <dependency>
  62.             <groupId>org.springframework.boot</groupId>
  63.             <artifactId>spring-boot-starter-test</artifactId>
  64.             <scope>test</scope>
  65.         </dependency>
  66.  
  67.         <!--PageHelper分页插件-->
  68.         <dependency>
  69.             <groupId>com.github.pagehelper</groupId>
  70.             <artifactId>pagehelper-spring-boot-starter</artifactId>
  71.             <version>1.4.2</version>
  72.         </dependency>
  73.  
  74.         <!--fastJSON-->
  75.         <dependency>
  76.             <groupId>com.alibaba</groupId>
  77.             <artifactId>fastjson</artifactId>
  78.             <version>1.2.76</version>
  79.         </dependency>
  80.  
  81.         <!--AOP-->
  82.         <dependency>
  83.             <groupId>org.springframework.boot</groupId>
  84.             <artifactId>spring-boot-starter-aop</artifactId>
  85.         </dependency>
  86.         <dependency>
  87.             <groupId>org.projectlombok</groupId>
  88.             <artifactId>lombok</artifactId>
  89.         </dependency>
  90.  
  91.     </dependencies>
  92.  
  93.     <build>
  94.         <plugins>
  95.             <plugin>
  96.                 <groupId>org.springframework.boot</groupId>
  97.                 <artifactId>spring-boot-maven-plugin</artifactId>
  98.                 <configuration>
  99.                     <excludes>
  100.                         <exclude>
  101.                             <groupId>org.projectlombok</groupId>
  102.                             <artifactId>lombok</artifactId>
  103.                         </exclude>
  104.                     </excludes>
  105.                 </configuration>
  106.             </plugin>
  107.         </plugins>
  108.     </build>
  109. </project>

继承与聚合

父工程需要引入springboot官方依赖

父类pom.xml

  1. <?xml version="1.0" encoding="UTF-8"?>
  2. <project xmlns="http://maven.apache.org/POM/4.0.0"
  3.          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  4.          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  5.     <modelVersion>4.0.0</modelVersion>
  6.  
  7.     <groupId>com.itheima</groupId>
  8.     <artifactId>tlias-parent</artifactId>
  9.     <version>1.0-SNAPSHOT</version>
  10.     <!--父工程 打包方式pom-->
  11.     <packaging>pom</packaging>
  12.  
  13.     <!--父工程指向的父依赖springboot官方版本依赖-->
  14.     <parent>
  15.         <groupId>org.springframework.boot</groupId>
  16.         <artifactId>spring-boot-starter-parent</artifactId>
  17.         <version>2.7.5</version>
  18.         <relativePath/> <!-- lookup parent from repository -->
  19.     </parent>
  20.  
  21.     <!--聚合其他模块  指定要聚合的模块有哪些-->
  22.     <modules>
  23.         <module>../tlias-pojo</module>
  24.         <module>../tlias-utils</module>
  25.         <module>../tlias-web-management</module>
  26.     </modules>
  27.  
  28.     <properties>
  29.         <maven.compiler.source>17</maven.compiler.source>
  30.         <maven.compiler.target>17</maven.compiler.target>
  31.         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
  32.  
  33.         <!--版本统一控制-->
  34.         <jwt.version>0.9.1</jwt.version>
  35.         <lombok.version>1.18.30</lombok.version>
  36.     </properties>
  37.  
  38.     <!--在这里引入依赖，父类就会下载依赖-->
  39.     <dependencies>
  40.  
  41.     </dependencies>
  42.  
  43.     <!--管理子模块依赖的版本号，但是不会下载依赖-->
  44.     <dependencyManagement>
  45.         <dependencies>
  46.             <!--lombok-->
  47.             <dependency>
  48.                 <groupId>org.projectlombok</groupId>
  49.                 <artifactId>lombok</artifactId>
  50.                 <version>${lombok.version}</version>
  51.             </dependency>
  52.             <!--JWT令牌-->
  53.             <dependency>
  54.                 <groupId>io.jsonwebtoken</groupId>
  55.                 <artifactId>jjwt</artifactId>
  56.                 <version>${jwt.version}</version>
  57.             </dependency>
  58.         </dependencies>
  59.     </dependencyManagement>
  60.  
  61. </project>

子类pom.xml

  1. <?xml version="1.0" encoding="UTF-8"?>
  2. <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  3.          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
  4.     <modelVersion>4.0.0</modelVersion>
  5.     <!--依赖引入父工程-->
  6.     <parent>
  7.         <groupId>com.itheima</groupId>
  8.         <artifactId>tlias-parent</artifactId>
  9.         <version>1.0-SNAPSHOT</version>
  10.         <relativePath>../tlias-parent/pom.xml</relativePath>
  11.     </parent>
  12.  
  13.     <groupId>com.itheima</groupId>
  14.     <artifactId>tlias-web-management</artifactId>
  15.     <version>0.0.1-SNAPSHOT</version>
  16.  
  17.     <properties>
  18.         <maven.compiler.source>17</maven.compiler.source>
  19.         <maven.compiler.target>17</maven.compiler.target>
  20.         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
  21.     </properties>
  22.  
  23.     <dependencies>
  24.  
  25.         <!--引入pojo依赖-->
  26.         <dependency>
  27.             <groupId>com.itheima</groupId>
  28.             <artifactId>tlias-pojo</artifactId>
  29.             <version>1.0-SNAPSHOT</version>
  30.         </dependency>
  31.  
  32.         <!--引入utils-->
  33.         <dependency>
  34.             <groupId>com.itheima</groupId>
  35.             <artifactId>tlias-utils</artifactId>
  36.             <version>1.0-SNAPSHOT</version>
  37.         </dependency>
  38.  
  39.         <!--web起步依赖-->
  40.         <dependency>
  41.             <groupId>org.springframework.boot</groupId>
  42.             <artifactId>spring-boot-starter-web</artifactId>
  43.         </dependency>
  44.  
  45.         <!--mybatis起步依赖-->
  46.         <dependency>
  47.             <groupId>org.mybatis.spring.boot</groupId>
  48.             <artifactId>mybatis-spring-boot-starter</artifactId>
  49.             <version>2.2.2</version>
  50.         </dependency>
  51.  
  52.         <!--mysql驱动-->
  53.         <dependency>
  54.             <groupId>com.mysql</groupId>
  55.             <artifactId>mysql-connector-j</artifactId>
  56.             <scope>runtime</scope>
  57.         </dependency>
  58.  
  59.         <!--springboot单元测试-->
  60.         <dependency>
  61.             <groupId>org.springframework.boot</groupId>
  62.             <artifactId>spring-boot-starter-test</artifactId>
  63.             <scope>test</scope>
  64.         </dependency>
  65.  
  66.         <!--PageHelper分页插件-->
  67.         <dependency>
  68.             <groupId>com.github.pagehelper</groupId>
  69.             <artifactId>pagehelper-spring-boot-starter</artifactId>
  70.             <version>1.4.2</version>
  71.         </dependency>
  72.  
  73.         <!--fastJSON-->
  74.         <dependency>
  75.             <groupId>com.alibaba</groupId>
  76.             <artifactId>fastjson</artifactId>
  77.             <version>1.2.76</version>
  78.         </dependency>
  79.  
  80.         <!--AOP-->
  81.         <dependency>
  82.             <groupId>org.springframework.boot</groupId>
  83.             <artifactId>spring-boot-starter-aop</artifactId>
  84.         </dependency>
  85.         <dependency>
  86.             <groupId>org.projectlombok</groupId>
  87.             <artifactId>lombok</artifactId>
  88.         </dependency>
  89.  
  90.     </dependencies>
  91.  
  92.     <build>
  93.         <plugins>
  94.             <plugin>
  95.                 <groupId>org.springframework.boot</groupId>
  96.                 <artifactId>spring-boot-maven-plugin</artifactId>
  97.                 <configuration>
  98.                     <excludes>
  99.                         <exclude>
  100.                             <groupId>org.projectlombok</groupId>
  101.                             <artifactId>lombok</artifactId>
  102.                         </exclude>
  103.                     </excludes>
  104.                 </configuration>
  105.             </plugin>
  106.         </plugins>
  107.     </build>
  108. </project>

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