maven多模块父子关系管理

1.父项目(project)只保留一个pom.xml文件

在pom文件里面加一个标签对

  <packaging>pom</packaging>

3.创建子module
详细步骤：
父pom

<?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.jdcloud</groupId>
    <artifactId>maven-java-parent</artifactId>
    <version>1.0.0</version>
    <modules>
        <module>maven_java_01</module>
    </modules>
    <packaging>pom</packaging>


</project>

子pom

<?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">
    <parent>
        <artifactId>maven-java-parent</artifactId>
        <groupId>com.jdcloud</groupId>
        <version>1.0.0</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>
    <artifactId>maven_java_01</artifactId>
</project>

上面方式缺点：只能创建maven工程项目

2、方式二：free style

打开存储目录

创建子模块时候：

<?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">
    <parent>
    <artifactId>maven-java-01</artifactId>
    <groupId>com.jdcloud</groupId>
    <version>1.0.0</version>
    // 相对路径
    <relativePath>../maven-java-01/pom.xml</relativePath>
</parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>maven-java-0101</artifactId>


</project>

<?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.jdcloud</groupId>
    <artifactId>maven-java-01</artifactId>
    <version>1.0.0</version>
    <modules>
        <module>../maven-java-0101</module>
    </modules>
    <packaging>pom</packaging>
</project>