項(xiàng)目目錄結(jié)構(gòu)

├── apps
│   ├── api-platform
│   │   ├── src
│   │   └── target
│   └── manage-platform
│       ├── src
│       └── target
├── build
│   └── db
│       ├── alter_v1.0.0
│       └── init
├── common
│   ├── 3rd-libs
│   │   ├── src
│   │   └── target
│   └── util
│       ├── src
│       └── target
├── doc
└── feature
    ├── app
    │   ├── app-api
    │   └── app-service
    ├── flow
    │   ├── flow-api
    │   └── flow-service
    ├── openservice
    │   ├── openservice-api
    │   └── openservice-service
    └── security
        ├── security-api
        └── security-service  

依賴集中管理

1. 在父目錄管理所有依賴的jar包
2. 將公共的jar包放入3rd-libs中,并保持盡量最小
3. 父目錄管理jar包的版本
4. 父pom中將子pom中依賴的爺爺pom中的jar包顯式的標(biāo)記出來

<!--父目錄依賴管理 -->
<parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.5.3.RELEASE</version>
        <relativePath/>
</parent>
    
<dependencyManagement>

    <dependencies>
    
    <!--springboot的這兩個starter包在父項(xiàng)目spring-boot-starter-parent中進(jìn)行了包管理,此處說明注釋-->
        <!--<dependency>-->
            <!--<groupId>org.springframework.boot</groupId>-->
            <!--<artifactId>spring-boot-starter</artifactId>-->
        <!--</dependency>-->
    
       <!-- 具體的某個依賴-->
        <dependency>
                <groupId>org.mybatis</groupId>
                <artifactId>mybatis</artifactId>
                <!-- 版本在 properties 中指定-->
                <version>${mybatis.version}</version>
            </dependency>
            
    </dependencies>
</dependencyManagement>


<!--子pom -->
<dependencies>
    <!--無需指定版本，已經(jīng)在父pom中指定 -->
    <dependency>
        <groupId>org.mybatis</groupId>
        <artifactId>mybatis</artifactId>
    </dependency>
    
    <!--這個引用其實(shí)已經(jīng)在爺爺pom中指定了 -->
    <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
    </dependency>


    
</dependencies>

嚴(yán)格的依賴控制

1. api 中嚴(yán)禁依賴其他jar包
2. service 中只準(zhǔn)依賴api
3. 明確原則，并明顯的標(biāo)識出來

<!-- api pom 示例-->

<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>

    <artifactId>flow-api</artifactId>
    <packaging>jar</packaging>

    <name>flow-api</name>
    <description>Demo project for Spring Boot</description>

    <parent>
        <groupId>com.mytijian.openapi</groupId>
        <version>0.0.1-SNAPSHOT</version>
        <relativePath>../../..</relativePath>
        <artifactId>open-api</artifactId>
    </parent>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <java.version>1.8</java.version>
    </properties>

    <!-- 不能依賴任何包和工程 -->

</project>