高效构建Java应用：Maven入门和进阶（五）

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Maven实战案例：搭建微服务Maven工程框架

5.1 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：

1. 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。
2. 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。
3. 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。

服务依赖：

1. 用户服务 (1.0.1)
   • spring-context 6.0.6
   • spring-core 6.0.6
   • spring-beans 6.0.6
   • jackson-databind / jackson-core / jackson-annotations 2.15.0
2. 订单服务 (1.0.1)
   1. shiro-core 1.10.1
   2. spring-context 6.0.6
   3. spring-core 6.0.6
   4. spring-beans 6.0.6
3. 通用模块 (1.0.1)
   1. commons-io 2.11.0

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5.2项目搭建和统一构建

1. 父模块搭建 (micro-shop)

   • 创建父工程

   • 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>1.0.1</version>
    <!-- 父工程不打包，所以选择pom值-->
    <packaging>pom</packaging>

    <properties>
        <spring.version>6.0.6</spring.version>
        <jackson.version>2.15.0</jackson.version>
        <shiro.version>1.10.1</shiro.version>
        <commons.version>2.11.0</commons.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>

            <!-- shiro-core -->
            <dependency>
                <groupId>org.apache.shiro</groupId>
                <artifactId>shiro-core</artifactId>
                <version>${shiro.version}</version>
            </dependency>
            <!-- commons-io -->
            <dependency>
                <groupId>commons-io</groupId>
                <artifactId>commons-io</artifactId>
                <version>${commons.version}</version>
            </dependency>

        </dependencies>

    </dependencyManagement>

    <dependencies>
        <!-- 父工程添加依赖，会自动传递给所有子工程，不推荐！ -->
    </dependencies>

    <!-- 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>

2. 通用模块 (common-service)

   • 创建模块

     

   • 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>
    <parent>
        <groupId>com.atguigu</groupId>
        <artifactId>micro-shop</artifactId>
        <version>1.0.1</version>
    </parent>
    <artifactId>common-service</artifactId>
    <!-- 打包方式默认就是jar！ -->
    <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>
        <!-- 声明commons-io，继承父工程版本 -->
        <dependency>
            <groupId>commons-io</groupId>
            <artifactId>commons-io</artifactId>
        </dependency>
    </dependencies>

</project>

3. 用户模块 (user-service)

   • 创建模块
     
     

   • 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>  
  <parent> 
    <groupId>com.atguigu</groupId>  
    <artifactId>micro-shop</artifactId>  
    <version>1.0.1</version> 
  </parent>  
  <artifactId>user-service</artifactId>  
  <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>
    <!-- 添加spring-context 自动传递 core / beans -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-context</artifactId>
    </dependency>

    <!-- 添加jackson-databind 自动传递 core / annotations -->
    <dependency>
      <groupId>com.fasterxml.jackson.core</groupId>
      <artifactId>jackson-databind</artifactId>
    </dependency>
  </dependencies>
</project>

4. 订单模块 (order-service)
   • 创建模块

• pom.xml

<?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>
    <parent>
        <groupId>com.atguigu</groupId>
        <artifactId>micro-shop</artifactId>
        <version>1.0.1</version>
    </parent>

    <artifactId>order-service</artifactId>
    <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>
        <!-- 继承父工程依赖版本 -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
        </dependency>

        <!-- 继承父工程依赖版本 -->
        <dependency>
            <groupId>org.apache.shiro</groupId>
            <artifactId>shiro-core</artifactId>
        </dependency>
    </dependencies>

</project>

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