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>

  <groupId>bigdata</groupId>
  <artifactId>MovieRecommendSystem</artifactId>
  <version>1.0-SNAPSHOT</version>

  <modules>
    <module>recommender</module>
    <module>businessServer</module>
      <module>website</module>
  </modules>

  <packaging>pom</packaging>

  <!-- 声明子项目公用的配置属性 -->
  <properties>
    <spark.version>2.1.1</spark.version>
    <scala.version>2.11.8</scala.version>
    <log4j.version>1.2.17</log4j.version>
    <slf4j.version>1.7.22</slf4j.version>
  </properties>

  <!-- 声明并引入子项目共有的依赖 -->
  <dependencies>

    <!-- 所有子项目的日志框架 -->
    <dependency>
      <groupId>org.slf4j</groupId>
      <artifactId>jcl-over-slf4j</artifactId>
      <version>${slf4j.version}</version>
    </dependency>
    <dependency>
      <groupId>org.slf4j</groupId>
      <artifactId>slf4j-api</artifactId>
      <version>${slf4j.version}</version>
    </dependency>
    <dependency>
      <groupId>org.slf4j</groupId>
      <artifactId>slf4j-log4j12</artifactId>
      <version>${slf4j.version}</version>
    </dependency>
    <!-- 具体的日志实现 -->
    <dependency>
      <groupId>log4j</groupId>
      <artifactId>log4j</artifactId>
      <version>${log4j.version}</version>
    </dependency>
    <!-- Logging End -->

    <dependency>
      <groupId>net.alchim31.maven</groupId>
      <artifactId>scala-maven-plugin</artifactId>
      <version>3.2.0</version>
    </dependency>


  </dependencies>

  <!-- 仅声明子项目共有的依赖，如果子项目需要此依赖，那么子项目需要声明 -->
  <dependencyManagement>
    <dependencies>
      <dependency>
        <groupId>org.scala-lang</groupId>
        <!--  scala-library是scala和java的结合（视频中说的大概意思） -->
        <artifactId>scala-library</artifactId>
        <version>${scala.version}</version>
      </dependency>
    </dependencies>
  </dependencyManagement>

  <!-- 声明构建信息 -->
  <build>
    <!-- 声明并引入子项目共有的插件【插件就是附着到Maven各个生命周期的具体实现】 -->
    <plugins>
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-compiler-plugin</artifactId>
        <version>3.6.1</version>
        <!-- 所有的编译都依照JDK1.8来搞 -->
        <configuration>
          <source>1.8</source>
          <target>1.8</target>
        </configuration>
      </plugin>
    </plugins>

    <!-- 仅声明子项目共有的插件，如果子项目需要此插件，那么子项目需要声明 -->
    <pluginManagement>
      <plugins>
        <!-- 该插件用于将Scala代码编译成class文件 -->
        <plugin>
          <groupId>net.alchim31.maven</groupId>
          <artifactId>scala-maven-plugin</artifactId>
          <version>3.2.2</version>
          <executions>
            <execution>
              <!--声明绑定到maven的compile阶段-->
              <goals>
                <goal>compile</goal>
              </goals>
            </execution>
          </executions>
        </plugin>

        <!-- 用于项目的打包插件 -->
        <plugin>
          <groupId>org.apache.maven.plugins</groupId>
          <artifactId>maven-assembly-plugin</artifactId>
          <version>3.0.0</version>
          <executions>
            <execution>
              <id>make-assembly</id>
              <phase>package</phase>
              <goals>
                <goal>single</goal>
              </goals>
            </execution>
          </executions>
        </plugin>

      </plugins>
    </pluginManagement>

  </build>

</project>