父子工程搭建

1. 构建父工程

父工程的职责是对依赖包的版本进行管理，创建父工程分两步，第一创建父工程，第二在pom.xml编辑依赖管理。

进入新建模块界面，选择Spring Initializr，填写模块的信息：

创建成功，删除多余文件：

2、依赖管理定义

父工程中没有代码，不用去依赖其它的包，它的作用是限定其它子工程依赖包的版本号，即在dependencyManagement中去编辑即可。

1）确定父工程为一个pom工程，在pom.xml中添加如下内容：

<packaging>pom</packaging>

2）编辑依赖的包的版本号、打包插件等。

pom.xml如下：

<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>com.xuecheng</groupId>
    <artifactId>xuecheng-plus-parent</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>xuecheng-plus-parent</name>
    <description>xuecheng-plus-parent</description>
    <packaging>pom</packaging>

    <properties>
        <java.version>1.8</java.version>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <spring-boot.version>2.3.7.RELEASE</spring-boot.version>
        <spring-cloud.version>Hoxton.SR9</spring-cloud.version>
        <org.mapstruct.version>1.3.1.Final</org.mapstruct.version>
        <spring-cloud-alibaba.version>2.2.6.RELEASE</spring-cloud-alibaba.version>
        <org.projectlombok.version>1.18.8</org.projectlombok.version>
        <javax.servlet-api.version>4.0.1</javax.servlet-api.version>
        <fastjson.version>1.2.83</fastjson.version>
        <druid-spring-boot-starter.version>1.2.8</druid-spring-boot-starter.version>
        <mysql-connector-java.version>8.0.30</mysql-connector-java.version>
        <mybatis-plus-boot-starter.version>3.4.1</mybatis-plus-boot-starter.version>
        <commons-lang.version>2.6</commons-lang.version>
        <minio.version>8.4.3</minio.version>
        <xxl-job-core.version>2.3.1</xxl-job-core.version>
        <swagger-annotations.version>1.5.20</swagger-annotations.version>
        <commons-lang3.version>3.10</commons-lang3.version>
        <okhttp.version>4.8.1</okhttp.version>
        <swagger-spring-boot-starter.version>1.9.0.RELEASE</swagger-spring-boot-starter.version>
        <elasticsearch.version>7.12.1</elasticsearch.version>
    </properties>


    <dependencyManagement>
        <dependencies>

            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>${spring-cloud.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-dependencies</artifactId>
                <version>${spring-boot.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
            <dependency>
                <groupId>com.alibaba.cloud</groupId>
                <artifactId>spring-cloud-alibaba-dependencies</artifactId>
                <version>${spring-cloud-alibaba.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
            <!-- lombok，简化类的构建-->
            <dependency>
                <groupId>org.projectlombok</groupId>
                <artifactId>lombok</artifactId>
                <version>${org.projectlombok.version}</version>
            </dependency>
            <!-- mapstruct 代码生成器，简化java bean之间的映射 -->
            <dependency>
                <groupId>org.mapstruct</groupId>
                <artifactId>mapstruct-jdk8</artifactId>
                <version>${org.mapstruct.version}</version>
            </dependency>
            <dependency>
                <groupId>org.mapstruct</groupId>
                <artifactId>mapstruct-processor</artifactId>
                <version>${org.mapstruct.version}</version>
            </dependency>
            <dependency>
                <groupId>io.swagger</groupId>
                <artifactId>swagger-annotations</artifactId>
                <version>${swagger-annotations.version}</version>
            </dependency>
            <!-- Servlet 容器管理 -->
            <dependency>
                <groupId>javax.servlet</groupId>
                <artifactId>javax.servlet-api</artifactId>
                <version>${javax.servlet-api.version}</version>
                <scope>provided</scope>
            </dependency>
            <!-- fastjson ，json解析工具 -->
            <dependency>
                <groupId>com.alibaba</groupId>
                <artifactId>fastjson</artifactId>
                <version>${fastjson.version}</version>
            </dependency>
            <!-- druid 连接池管理 -->
            <dependency>
                <groupId>com.alibaba</groupId>
                <artifactId>druid-spring-boot-starter</artifactId>
                <version>${druid-spring-boot-starter.version}</version>
            </dependency>

            <!-- mySQL数据库驱动包管理 -->
            <dependency>
                <groupId>mysql</groupId>
                <artifactId>mysql-connector-java</artifactId>
                <version>${mysql-connector-java.version}</version>
            </dependency>
            <!-- mybatis plus 集成Spring Boot启动器 -->
            <dependency>
                <groupId>com.baomidou</groupId>
                <artifactId>mybatis-plus-boot-starter</artifactId>
                <version>${mybatis-plus-boot-starter.version}</version>
            </dependency>

            <!-- mybatis plus 代码生成器 -->
            <dependency>
                <groupId>com.baomidou</groupId>
                <artifactId>mybatis-plus-generator</artifactId>
                <version>${mybatis-plus-boot-starter.version}</version>
            </dependency>

            <!-- 工具类管理 -->
            <dependency>
                <groupId>commons-lang</groupId>
                <artifactId>commons-lang</artifactId>
                <version>${commons-lang.version}</version>
            </dependency>
            <!-- 分布式文件系统 minIO的客户端API包 -->
            <dependency>
                <groupId>io.minio</groupId>
                <artifactId>minio</artifactId>
                <version>${minio.version}</version>
            </dependency>
            <!--google推荐的一套工具类库-->
            <dependency>
                <groupId>com.google.guava</groupId>
                <artifactId>guava</artifactId>
                <version>25.0-jre</version>
            </dependency>
            <!--分布式任务调度-->
            <dependency>
                <groupId>com.xuxueli</groupId>
                <artifactId>xxl-job-core</artifactId>
                <version>${xxl-job-core.version}</version>
            </dependency>
            <!--Spring boot单元测试-->
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-test</artifactId>
                <version>${spring-boot.version}</version>
                <scope>test</scope>
                <exclusions>
                    <exclusion>
                        <groupId>org.junit.vintage</groupId>
                        <artifactId>junit-vintage-engine</artifactId>
                    </exclusion>
                </exclusions>
            </dependency>
            <dependency>
                <groupId>com.squareup.okhttp3</groupId>
                <artifactId>okhttp</artifactId>
                <version>${okhttp.version}</version>
            </dependency>
            <dependency>
                <groupId>org.apache.commons</groupId>
                <artifactId>commons-lang3</artifactId>
                <version>${commons-lang3.version}</version>
            </dependency>
            <dependency>
                <groupId>com.spring4all</groupId>
                <artifactId>swagger-spring-boot-starter</artifactId>
                <version>${swagger-spring-boot-starter.version}</version>
            </dependency>
            <dependency>
                <groupId>org.elasticsearch.client</groupId>
                <artifactId>elasticsearch-rest-high-level-client</artifactId>
                <version>${elasticsearch.version}</version>
            </dependency>

            <dependency>
                <groupId>org.elasticsearch</groupId>
                <artifactId>elasticsearch</artifactId>
                <version>${elasticsearch.version}</version>
            </dependency>
        </dependencies>

    </dependencyManagement>

    <build>
        <finalName>${project.name}</finalName>
        <!--编译打包过虑配置-->
        <resources>
            <resource>
                <directory>src/main/resources</directory>
                <filtering>true</filtering>
                <includes>
                    <include>**/*</include>
                </includes>
            </resource>
            <resource>
                <directory>src/main/java</directory>
                <includes>
                    <include>**/*.xml</include>
                </includes>
            </resource>
        </resources>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.8.1</version>
                <configuration>
                    <!--指定项目源码jdk的版本-->
                    <source>1.8</source>
                    <!--指定项目编译后的jdk的版本-->
                    <target>1.8</target>
                    <!--配置注解预编译-->
                    <annotationProcessorPaths>
                        <path>
                            <groupId>org.projectlombok</groupId>
                            <artifactId>lombok</artifactId>
                            <version>${org.projectlombok.version}</version>
                        </path>
                    </annotationProcessorPaths>
                </configuration>
            </plugin>

            <!--责处理项目资源文件并拷贝到输出目录，如果有额外的资源文件目录则需要配置-->
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-resources-plugin</artifactId>
                <version>3.3.0</version>
                <configuration>
                    <encoding>utf-8</encoding>
                    <!--使用默认分隔符，resource中可以使用分割符定义过虑的路径-->
                    <useDefaultDelimiters>true</useDefaultDelimiters>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>

2. 构建子工程

1、首先在项目根目录创建内容管理模块的父工程xuecheng-plus-content：

创建完成，只保留pom.xml文件，删除多余的文件。

内容管理父工程的主要职责是聚合内容管理接口和内容管理接口实现两个工程，它的父工程是xuecheng-plus-parent。

<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <artifactId>xuecheng-plus-parent</artifactId>
        <groupId>com.xuecheng</groupId>
        <version>0.0.1-SNAPSHOT</version>
        <relativePath>../xuecheng-plus-parent</relativePath>
    </parent>
    <artifactId>xuecheng-plus-content</artifactId>
    <name>xuecheng-plus-content</name>
    <description>xuecheng-plus-content</description>
    <packaging>pom</packaging>

  <modules>
    <module>xuecheng-plus-content-api</module>
    <module>xuecheng-plus-content-model</module>
    <module>xuecheng-plus-content-service</module>
   </modules>
</project>

2、在其下创建model数据模型工程。

创建完成，只保留包和pom.xml文件，删除多余的文件。

<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <artifactId>xuecheng-plus-content</artifactId>
        <groupId>com.xuecheng</groupId>
        <version>0.0.1-SNAPSHOT</version>
    </parent>
    <artifactId>xuecheng-plus-content-model</artifactId>
    <dependencies>
                <dependency>
            <groupId>com.xuecheng</groupId>
            <artifactId>xuecheng-plus-base</artifactId>
            <version>0.0.1-SNAPSHOT</version>
        </dependency>
    </dependencies>
</project>

3、在其下创建service接口实现工程。

创建完成，只保留包和pom.xml文件，删除多余的文件

<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <artifactId>xuecheng-plus-content</artifactId>
        <groupId>com.xuecheng</groupId>
        <version>0.0.1-SNAPSHOT</version>
    </parent>
    <artifactId>xuecheng-plus-content-service</artifactId>
        <dependencies>
        <dependency>
            <groupId>com.xuecheng</groupId>
            <artifactId>xuecheng-plus-content-model</artifactId>
            <version>0.0.1-SNAPSHOT</version>
        </dependency>
     </dependencies>
</project>

4、在其下创建api接口工程。

xuecheng-plus-content-api接口工程的父工程是xuecheng-plus-content，它依赖了xuecheng-plus-base基础工程。

<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <artifactId>xuecheng-plus-content</artifactId>
        <groupId>com.xuecheng</groupId>
        <version>0.0.1-SNAPSHOT</version>
    </parent>
    <artifactId>xuecheng-plus-content-api</artifactId>
    <dependencies>
        <dependency>
            <groupId>com.xuecheng</groupId>
            <artifactId>xuecheng-plus-content-service</artifactId>
            <version>0.0.1-SNAPSHOT</version>
        </dependency>
    </dependencies>
</project>