创建springcloud聚合工程项目

<?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>cloud-project</artifactId>
    <version>1.0-SNAPSHOT</version>
    <!--父pom文件中声明子模块名-->
    <modules>
        <module>common</module>
        <module>video-service</module>
        <module>user-service</module>
        <module>order-service</module>
    </modules>
    <!-- 一般来说父级项目的packaging都为pom，packaging默认类型jar类型-->
    <packaging>pom</packaging>
    <properties>
        <maven.compiler.source>11</maven.compiler.source>
        <maven.compiler.target>11</maven.compiler.target>
    </properties>
    <!--锁定版本，后续子模块中的jar包版本会依赖父pom文件中的版本-->
    <dependencyManagement>
        <dependencies>
            <!--https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-dependencies/2.3.3.RELEASE-->
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-dependencies</artifactId>
                <version>2.3.3.RELEASE</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
            <!--https://mvnrepository.com/artifact/org.springframework.cloud/spring-cloud-dependencies/Hoxton.SR8-->
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>Hoxton.SR8</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
            <!--https://mvnrepository.com/artifact/com.alibaba.cloud/spring-cloud-alibaba-dependencies/2.2.1.RELEASE-->
            <dependency>
                <groupId>com.alibaba.cloud</groupId>
                <artifactId>spring-cloud-alibaba-dependencies</artifactId>
                <version>2.2.1.RELEASE</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>
    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <configuration>
                    <fork>true</fork>
                    <addResources>true</addResources>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>

<dependencies>
    <!--web工程项目-->
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>
    <!--引入公共common模块，即common模块编写的内容都会在这里使用-->
    <dependency>
        <groupId>org.example</groupId>
        <artifactId>common</artifactId>
        <version>1.0-SNAPSHOT</version>
    </dependency>
</dependencies>