创建父子依赖关系maven工程

jar文件包括Java普通类、资源文件和普通文件，在maven中即是打包src/main/java和src/main/resources资源文件夹下的所有文件。在打包的时候会自动生成MATA-INF文件夹，用于存储maven的pom信息和MANIFEST.MF文件。
war文件包含全部的web应用程序，即所有的java类，配置信息和jsp、js等静态资源。但是需要注意war引用war的时候会将应用war的资源全部拷贝到当前war的相同文件下，重名的文件会被替换

.

GroupID是项目组织唯一的标识符，实际对应Java的包的结构
ArtifactID就是项目的唯一的标识符，实际对应项目的名称，就是项目根目录的名称。
一般GroupID就是填com.info.test.这样子。

• 1、创建project

• 2、新建Directory

项目目录：

其中，groupon是一个project
Admin，Service，Site分别是Module

• 3、为每个目录下再添加Directory

• 4、为每个目录下添加标准工程结构
  （以Admin下的Controller为例）
  -src
  -main
  -java
  -resources
  -test
  -java
  -resources

• 5、添加pom.xml文件

对于groupon

<project
        xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
        xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
    <modelVersion>4.0.0modelVersion>

    <groupId>com.tortuousroadgroupId>
    <artifactId>grouponartifactId>
    <version>1.0version>
    <packaging>pompackaging>
    <name>${project.artifactId}name>

    <modules>
        <module>Adminmodule>
        <module>Servicemodule>
        <module>Sitemodule>
    modules>
    <dependencies>
        
        <dependency>
            <groupId>org.projectlombokgroupId>
            <artifactId>lombokartifactId>
            <version>1.16.10version>
        dependency>
    dependencies>

project>

对Admin

<project
        xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
        xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
    <modelVersion>4.0.0modelVersion>

    <parent>
        <groupId>com.tortuousroadgroupId>
        <artifactId>grouponartifactId>
        <version>1.0version>
    parent>

    <groupId>com.tortuousroadgroupId>
    <artifactId>groupon-adminartifactId>
    <version>1.0version>
    <packaging>pompackaging>
    <name>${project.artifactId}name>
    <modules>
        <module>Controllermodule>
        <module>Webmodule>
    modules>

project>

Service

<project
        xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
        xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
    <modelVersion>4.0.0modelVersion>

    <parent>
        <groupId>com.tortuousroadgroupId>
        <artifactId>grouponartifactId>
        <version>1.0version>
    parent>

    <groupId>com.tortuousroadgroupId>
    <artifactId>groupon-serviceartifactId>
    <version>1.0version>
    <packaging>jarpackaging>
    <name>${project.artifactId}name>

project>

Site

<project
        xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
        xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
    <modelVersion>4.0.0modelVersion>

    <groupId>com.tortuousroadgroupId>
    <artifactId>grouponartifactId>
    <version>1.0version>
    <packaging>pompackaging>
    <name>${project.artifactId}name>

    <modules>
        <module>Adminmodule>
        <module>Servicemodule>
        <module>Sitemodule>
    modules>
    <dependencies>
        <dependency>
            <groupId>org.projectlombokgroupId>
            <artifactId>lombokartifactId>
            <version>1.16.10version>
        dependency>
    dependencies>

project>

Admin->Controller

<project
        xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
        xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
    <modelVersion>4.0.0modelVersion>

    <parent>
        <groupId>com.tortuousroadgroupId>
        <artifactId>groupon-adminartifactId>
        <version>1.0version>
    parent>

    <groupId>com.tortuousroadgroupId>
    <artifactId>groupon-admin-controllerartifactId>
    <version>1.0version>
    <packaging>jarpackaging>
    <name>${project.artifactId}name>


project>

Admin->Web

<project
        xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
        xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
    <modelVersion>4.0.0modelVersion>

    <parent>
        <groupId>com.tortuousroadgroupId>
        <artifactId>groupon-adminartifactId>
        <version>1.0version>
    parent>

    <groupId>com.tortuousroadgroupId>
    <artifactId>groupon-admin-webartifactId>
    <version>1.0version>
    <packaging>warpackaging>
    <name>${project.artifactId}name>


project>

Site->Controller

<project
        xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
        xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
    <modelVersion>4.0.0modelVersion>

    <parent>
        <groupId>com.tortuousroadgroupId>
        <artifactId>groupon-siteartifactId>
        <version>1.0version>
    parent>

    <groupId>com.tortuousroadgroupId>
    <artifactId>groupon-site-controllerartifactId>
    <version>1.0version>
    <packaging>jarpackaging>
    <name>${project.artifactId}name>


project>

Site->Web

<project
        xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
        xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
    <modelVersion>4.0.0modelVersion>

    <parent>
        <groupId>com.tortuousroadgroupId>
        <artifactId>groupon-siteartifactId>
        <version>1.0version>
    parent>

    <groupId>com.tortuousroadgroupId>
    <artifactId>groupon-site-webartifactId>
    <version>1.0version>
    <packaging>warpackaging>
    <name>${project.artifactId}name>


project>

最后的maven工程结构：