Maven多模块构建实例

创建coffee-parent项目

new->maven project

创建coffee-web项目

右键coffee-parent项目->new->project...

注意：需要在src/main/webapp下创建web-inf文件夹，以及在web-inf下创建web.xml。

创建coffee-api项目

右键coffee-parent项目->new->project...
注意：前面步骤同coffee-web项目

项目结构：

pom.xml文件

coffee-parent项目的pom.xml：

<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.coffee</groupid>
  <artifactid>coffee-parent</artifactid>
  <version>0.0.1-snapshot</version>
  <packaging>pom</packaging>
  <modules>
    <module>coffee-web</module>
    <module>coffee-api</module>
  </modules>
  
  <!-- 管理依赖，供子项目选择使用  -->
  <dependencymanagement>
    <dependencies>
        <dependency>
            <groupid>com.coffee</groupid>
            <artifactid>coffee-api</artifactid>
            <version>0.0.1-snapshot</version>
        </dependency>
    </dependencies>
  </dependencymanagement>
  
  <build>
    <!-- 配置使用jdk1.7编译，所有子项目都会继承此配置，如需配置为子项目可选继承，则需要配置到 pluginmanagement下-->
    <plugins>
        <plugin>
            <groupid>org.apache.maven.plugins</groupid>
            <artifactid>maven-compiler-plugin</artifactid>
            <version>3.8.1</version>
            <configuration>
                <source>1.7</source>
                <target>1.7</target>
            </configuration>
        </plugin>
    </plugins>
  </build>
</project>

coffee-web项目的pom.xml：

<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>
  <parent>
    <groupid>com.coffee</groupid>
    <artifactid>coffee-parent</artifactid>
    <version>0.0.1-snapshot</version>
  </parent>
  <artifactid>coffee-web</artifactid>
  <packaging>war</packaging>
  
    <!-- coffee-web依赖coffee-api，无需配置version，使用父项目coffee-parent中配置的version-->
    <dependencies>
        <dependency>
            <groupid>com.coffee</groupid>
            <artifactid>coffee-api</artifactid>
        </dependency>
    </dependencies>
</project>

coffee-api项目的pom.xml：

<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>
  <parent>
    <groupid>com.coffee</groupid>
    <artifactid>coffee-parent</artifactid>
    <version>0.0.1-snapshot</version>
  </parent>
  <artifactid>coffee-api</artifactid>
</project>

构建

右键coffee-parent项目->run as->maven install

构建成功：

[info] ------------------------------------------------------------------------
[info] reactor summary for coffee-parent 0.0.1-snapshot:
[info] 
[info] coffee-parent ...................................... success [  0.754 s]
[info] coffee-api ......................................... success [  2.085 s]
[info] coffee-web ......................................... success [  0.888 s]
[info] ------------------------------------------------------------------------
[info] build success
[info] ------------------------------------------------------------------------
[info] total time:  3.980 s
[info] finished at: 2019-06-03t21:44:43+08:00
[info] ------------------------------------------------------------------------