一、模块划分
一个父工程,一个子工程微服务,一个普通maven子工程
二、建父工程
1、github建仓库
2、idea新建maven项目(父工程)
3、idea工程和github建立联系
选中 scr和pom.xml ,git add
git commit
git fetch
命令行输入:
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| git branch --set-upstream-to=origin/master
git merge origin/master --allow-unrelated-histories
|
- commit + push 推送远程仓库
- 接下来就可以直接开发了
三、建子工程
四、父子关系
三个工程的pom文件内容是这样的:
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| <?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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>org.example</groupId>
<artifactId>springboot-parent-child</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>pom</packaging>
<modules>
<module>user-service</module>
<module>base-entity</module>
</modules>
<properties>
<!-- maven-resources-plugin插件的默认取值 -->
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<!-- maven-site-plugin等插件的默认取值 -->
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<!-- maven-compiler-plugin插件的默认取值 -->
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
<!-- spring-boot-starter-parent里定义的的默认取值 -->
<java.version>1.8</java.version>
<spring-boot-version>2.6.3</spring-boot-version>
</properties>
<!--
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.6.3</version>
</parent>
-->
<dependencyManagement>
<dependencies>
<!-- SpringBoot 依赖导入 -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-dependencies</artifactId>
<version>${spring-boot-version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
<!-- SpringCloud 依赖导入 -->
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>2021.0.1</version>
<type>pom</type>
<scope>import</scope>
</dependency>
<!-- SpringCloud Alibaba 依赖导入 -->
<dependency>
<groupId>com.alibaba.cloud</groupId>
<artifactId>spring-cloud-alibaba-dependencies</artifactId>
<version>2021.0.1.0</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<!--
1、这里显式指定插件版本,其实版本在springboot的pom中有,但这种引入方式会对插件不友好
2、maven打包时会出现找不到版本的警告,为了规避,所以在这里指定版本,
后面继承的子工程就可以直接依赖这个插件了
3、用spring-boot-starter-parent引入的,插件可以直接使用,没有警告
-->
<!-- build 标签:用来配置对构建过程的定制 -->
<build>
<pluginManagement>
<!-- plugins 标签:定制化构建过程中所使用到的插件 -->
<plugins>
<!-- plugin 标签:一个具体插件 -->
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<version>${spring-boot-version}</version>
</plugin>
</plugins>
</pluginManagement>
</build>
</project>
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| <?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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<parent>
<artifactId>springboot-parent-child</artifactId>
<groupId>org.example</groupId>
<version>1.0-SNAPSHOT</version>
</parent>
<modelVersion>4.0.0</modelVersion>
<artifactId>user-service</artifactId>
<dependencies>
<!-- Nacos 服务注册发现启动器 -->
<dependency>
<groupId>com.alibaba.cloud</groupId>
<artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
</dependency>
<!-- web启动器依赖 -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.example</groupId>
<artifactId>base-entity</artifactId>
<version>1.0-SNAPSHOT</version>
</dependency>
</dependencies>
<!-- build 标签:用来配置对构建过程的定制 -->
<build>
<!-- plugins 标签:定制化构建过程中所使用到的插件 -->
<plugins>
<!-- plugin 标签:一个具体插件 -->
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<!--
1、对于用import引入的springboot,这里要指定这个目标,否则执行mvn package时,不会自动执行springboot:repackage
2、如果不这样指定的话,那打包命令需要显式指定插件,命令为:
mvn clean package spring-boot:repackage -Dmaven.test.skip=true
3、repackage前面必须有已经存在的包,否则会出错,所以前面跟着一个package原生命令
-->
<executions>
<execution>
<goals>
<goal>repackage</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>
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| <?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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<parent>
<artifactId>springboot-parent-child</artifactId>
<groupId>org.example</groupId>
<version>1.0-SNAPSHOT</version>
</parent>
<modelVersion>4.0.0</modelVersion>
<artifactId>base-entity</artifactId>
<dependencies>
<!-- OpenFeign 专用依赖 -->
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-openfeign</artifactId>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<scope>provided</scope>
</dependency>
</dependencies>
</project>
|
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| nohup java -jar user-service-1.0-SNAPSHOT.jar>demo06.log 2>&1 &
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注意
1、引入springboot的方式
不是每个人都喜欢从 spring-boot-starter-parent
继承 POM。您可能需要使用自己公司标准的父 POM,或者您可能只是希望明确地声明所有 Maven 配置。
如果您不想使用 spring-boot-starter-parent
,则仍然可以通过使用 scope=import
依赖来获得依赖管理(但不是插件管理)的好处:
假如 A工程这样配置,这种方式只能在后面继承这个A工程的的子工程中去覆盖依赖的版本:
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| <packaging>pom</packaging>
...
...
<dependencyManagement>
<dependencies>
<!-- SpringBoot 依赖导入 -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-dependencies</artifactId>
<version>2.6.3</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
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| <packaging>pom</packaging>
...
...
<dependencyManagement>
<dependencies>
<!-- SpringBoot 依赖导入 -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-dependencies</artifactId>
<version>2.6.3</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<version>2.6.4</version>
</dependency>
</dependencies>
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| <packaging>pom</packaging>
...
...
<dependencyManagement>
<dependencies>
<!-- SpringBoot 依赖导入 -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-dependencies</artifactId>
<version>2.6.3</version>
<type>pom</type>
<scope>import</scope>
</dependency>
<!-- 覆盖web的版本 -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<version>2.6.4</version>
</dependency>
</dependencies>
</dependencyManagement>
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- 这种方式引入,也会使spring-boot-maven-plugin 引入进来,但是打包时有warning
image-20220410051949718