1. 项目需求和结构分析
需求案例:搭建一个电商平台项目,该平台包括用户服务、订单服务、通用工具模块等。
项目架构:
- 用户服务:负责处理用户相关的逻辑,例如用户信息的管理、用户注册、登录等。
- spring-context 6.0.6
- spring-core 6.0.6
- spring-beans 6.0.6
- common-service
- 订单服务:负责处理订单相关的逻辑,例如订单的创建、订单支付、退货、订单查看等。
- spring-context 6.0.6
- spring-core 6.0.6
- spring-beans 6.0.6
- spring-security 6.0.6
- common-service
- 通用模块:负责存储其他服务需要通用工具类,其他服务依赖此模块。
- commons-io 2.11.0
- junit 5.9.2
2. 项目搭建和统一构建
①父模块 (micro-shop)
创建工程:
pom.xml配置:
<?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>com.atguigu</groupId><artifactId>micro-shop</artifactId><version>1.0-SNAPSHOT</version><!--知识点:父工程的打包方式为pom--><packaging>pom</packaging><properties><spring.version>6.0.6</spring.version><jackson.version>2.15.0</jackson.version><commons.version>2.11.0</commons.version><junit.version>5.9.2</junit.version><maven.compiler.source>17</maven.compiler.source><maven.compiler.target>17</maven.compiler.target><project.build.sourceEncoding>UTF-8</project.build.sourceEncoding></properties><!-- 依赖管理 --><dependencyManagement><dependencies><!-- spring-context会依赖传递core/beans --><dependency><groupId>org.springframework</groupId><artifactId>spring-context</artifactId><version>${spring.version}</version></dependency><!-- jackson-databind会依赖传递core/annotations --><dependency><groupId>com.fasterxml.jackson.core</groupId><artifactId>jackson-databind</artifactId><version>${jackson.version}</version></dependency><!-- commons-io --><dependency><groupId>commons-io</groupId><artifactId>commons-io</artifactId><version>${commons.version}</version></dependency><!-- https://mvnrepository.com/artifact/org.junit.jupiter/junit-jupiter-api --><dependency><groupId>org.junit.jupiter</groupId><artifactId>junit-jupiter-api</artifactId><version>${junit.version}</version><scope>test</scope></dependency></dependencies></dependencyManagement><!-- 统一更新子工程打包插件--><build><!-- jdk17 和 war包版本插件不匹配 --><plugins><plugin><groupId>org.apache.maven.plugins</groupId><artifactId>maven-war-plugin</artifactId><version>3.2.2</version></plugin></plugins></build></project>
可选操作:删除src目录
②通用模块 (common-service)
创建工程:
pom.xml配置:
<?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>micro-shop</artifactId><groupId>com.atguigu</groupId><version>1.0-SNAPSHOT</version></parent><modelVersion>4.0.0</modelVersion><artifactId>common-service</artifactId><!--知识点:打包方式默认就是jar,因此可以省略--><packaging>jar</packaging><properties><maven.compiler.source>17</maven.compiler.source><maven.compiler.target>17</maven.compiler.target><project.build.sourceEncoding>UTF-8</project.build.sourceEncoding></properties><dependencies><!-- 配置spring-context,继承父工程版本,自动传递 core / beans --><dependency><groupId>org.springframework</groupId><artifactId>spring-context</artifactId></dependency><!-- 配置jackson-databind,继承父工程版本,自动传递 core / annotations --><dependency><groupId>com.fasterxml.jackson.core</groupId><artifactId>jackson-databind</artifactId></dependency><!-- 配置commons-io,继承父工程版本 --><dependency><groupId>commons-io</groupId><artifactId>commons-io</artifactId></dependency><!-- 配置junit,继承父工程版本 --><dependency><groupId>org.junit.jupiter</groupId><artifactId>junit-jupiter-api</artifactId><scope>test</scope></dependency></dependencies></project>
③用户模块 (user-service)
创建工程:
pom.xml配置:
<?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>micro-shop</artifactId><groupId>com.atguigu</groupId><version>1.0-SNAPSHOT</version></parent><modelVersion>4.0.0</modelVersion><artifactId>user-service</artifactId><!-- web工程打包方式为war --><packaging>war</packaging><properties><maven.compiler.source>17</maven.compiler.source><maven.compiler.target>17</maven.compiler.target><project.build.sourceEncoding>UTF-8</project.build.sourceEncoding></properties><dependencies><!-- 配置common-service,所需依赖会传递到当前工程(仅限compile范围) --><dependency><groupId>com.atguigu</groupId><artifactId>common-service</artifactId><version>1.0-SNAPSHOT</version></dependency></dependencies></project>
依赖传递结果:
④订单模块 (order-service)
创建工程,并使用插件转为web工程:
pom.xml配置:
<?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>micro-shop</artifactId><groupId>com.atguigu</groupId><version>1.0-SNAPSHOT</version></parent><modelVersion>4.0.0</modelVersion><artifactId>order-service</artifactId><!-- web工程打包方式为war --><packaging>war</packaging><properties><maven.compiler.source>17</maven.compiler.source><maven.compiler.target>17</maven.compiler.target><project.build.sourceEncoding>UTF-8</project.build.sourceEncoding></properties><dependencies><!-- 配置common-service,所需依赖会传递到当前工程(仅限compile范围) --><dependency><groupId>com.atguigu</groupId><artifactId>common-service</artifactId><version>1.0-SNAPSHOT</version></dependency></dependencies></project>
此时,查看父工程的pom.xml,会发现其中已经自动聚合了子工程:
<modules><module>common-service</module><module>user-service</module><module>order-service</module>
</modules>