這里我們會(huì)發(fā)現(xiàn)聚合和繼承的配置文件幾乎一樣雀扶，那我們可以將聚合中配置的模塊

<modules>
    <module>../user-core</module>
    <module>../user-log</module>
    <module>../user-dao</module>
    <module>../user-service</module>
  </modules>

直接拿到user-parent的配置文件中杖小，而之前的聚合工程就不需要了，一個(gè)工程就完成了繼承和聚合愚墓。這里我們給出整合后的所有模塊的配置信息予权，同時(shí)對(duì)于沒有整合之前的配置文件，我們都起名為pom_back.xml浪册。

user-parent/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>

    <modules>
        <module>../user-core</module>
        <module>../user-log</module>
        <module>../user-dao</module>
        <module>../user-service</module>
    </modules>

    <groupId>org.konghao.user</groupId>
    <artifactId>user-parent</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>pom</packaging>

    <url>http://maven.apache.org</url>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    </properties>

    <repositories>
        <repository>
            <id>central</id>
            <name>Central Repository</name>
            <url>https://repo.maven.apache.org/maven2</url>
            <layout>default</layout>
            <snapshots>
                <enabled>false</enabled>
            </snapshots>
        </repository>
    </repositories>

    <dependencyManagement>
        <dependencies>
            <!-- user-common -->
            <dependency>
                <groupId>junit</groupId>
                <artifactId>junit</artifactId>
                <version>4.10</version>
            </dependency>
            <dependency>
                <groupId>log4j</groupId>
                <artifactId>log4j</artifactId>
                <version>1.2.17</version>
            </dependency>

            <!-- user-core -->
            <dependency>
                <groupId>org.hibernate</groupId>
                <artifactId>hibernate-core</artifactId>
                <version>5.1.0.Final</version>
            </dependency>
            <dependency>
                <groupId>mysql</groupId>
                <artifactId>mysql-connector-java</artifactId>
                <version>5.1.38</version>
            </dependency>

            <!-- user-dao -->
            <dependency>
                <groupId>org.konghao.user</groupId>
                <artifactId>user-core</artifactId>
                <version>0.0.1-SNAPSHOT</version>
            </dependency>
            <dependency>
                <groupId>org.konghao.user</groupId>
                <artifactId>user-log</artifactId>
                <version>0.0.1-SNAPSHOT</version>
            </dependency>
            
            <!-- user-log -->
            <dependency>
                <groupId>commons-logging</groupId>
                <artifactId>commons-logging</artifactId>
                <version>1.2</version>
            </dependency>
            
            <!-- user-service -->
            <dependency>
                <groupId>org.konghao.user</groupId>
                <artifactId>user-dao</artifactId>
                <version>0.0.1-SNAPSHOT</version>
                <type>jar</type>
            </dependency>
            <dependency>
                <groupId>org.konghao.user</groupId>
                <artifactId>user-log</artifactId>
                <version>0.0.1-SNAPSHOT</version>
                <type>jar</type>
            </dependency>
        </dependencies>
    </dependencyManagement>

</project>

user-core/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>org.konghao.user</groupId>
        <artifactId>user-parent</artifactId>
        <version>0.0.1-SNAPSHOT</version>
        <relativePath>../user-parent/pom.xml</relativePath>
    </parent>

    <artifactId>user-core</artifactId>
    <packaging>jar</packaging>
    <name>user-core</name>

    <dependencies>
        <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-core</artifactId>
        </dependency>

        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>log4j</groupId>
            <artifactId>log4j</artifactId>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
        </dependency>
    </dependencies>
</project>

user-log/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>org.konghao.user</groupId>
        <artifactId>user-parent</artifactId>
        <version>0.0.1-SNAPSHOT</version>
        <relativePath>../user-parent/pom.xml</relativePath>
    </parent>
    
    <artifactId>user-log</artifactId>
    <packaging>jar</packaging>
    <name>user-log</name>

    <dependencies>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>log4j</groupId>
            <artifactId>log4j</artifactId>
        </dependency>
        <dependency>
            <groupId>commons-logging</groupId>
            <artifactId>commons-logging</artifactId>
        </dependency>
    </dependencies>
</project>

user-dao/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>org.konghao.user</groupId>
        <artifactId>user-parent</artifactId>
        <version>0.0.1-SNAPSHOT</version>
        <relativePath>../user-parent/pom.xml</relativePath>
    </parent>

    <artifactId>user-dao</artifactId>
    <packaging>jar</packaging>
    <name>user-dao</name>

    <dependencies>
        <dependency>
            <groupId>org.konghao.user</groupId>
            <artifactId>user-core</artifactId>
        </dependency>
        <dependency>
            <groupId>org.konghao.user</groupId>
            <artifactId>user-log</artifactId>
        </dependency>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>
</project>

user-service/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>org.konghao.user</groupId>
        <artifactId>user-parent</artifactId>
        <version>0.0.1-SNAPSHOT</version>
        <relativePath>../user-parent/pom.xml</relativePath>
    </parent>

    <artifactId>user-service</artifactId>
    <packaging>jar</packaging>
    <name>user-service</name>

    <dependencies>
        <dependency>
            <groupId>org.konghao.user</groupId>
            <artifactId>user-dao</artifactId>
            <type>jar</type>
        </dependency>
        <dependency>
            <groupId>org.konghao.user</groupId>
            <artifactId>user-log</artifactId>
            <type>jar</type>
        </dependency>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>
</project>

這就是我們一般的配置方式扫腺，這里只是做一個(gè)演示。

• 版本
  版本號(hào)一般由單個(gè)數(shù)字組成村象，第一個(gè)數(shù)字是總版本號(hào)笆环，第二個(gè)數(shù)字是分支版本號(hào)，最后一個(gè)是小版本號(hào)煞肾。中劃線后面叫里程碑版本咧织。總版本號(hào)的變動(dòng)一般表示整體框架的變動(dòng)籍救。分支版本號(hào)的變動(dòng)表示增加了一些功能习绢。小版本號(hào)表示在分支版本上進(jìn)行的bug的修復(fù)。里程碑一般開始的開發(fā)版本使用SNAPSHOT表示蝙昙，而開發(fā)版本后面有可能是alpha版本闪萄，表示內(nèi)部測(cè)試版本，之后還有beta版本奇颠，表示外部公測(cè)版本败去，之后是release版本，即是發(fā)布版本烈拒，如果此版本很穩(wěn)定圆裕，那么就會(huì)變成GA版本广鳍，即穩(wěn)定版本。
  注意：總版本號(hào)和分支版本號(hào)是必須的吓妆，后面兩個(gè)不是必須的赊时。一般由快照版本到release版本之后就會(huì)進(jìn)入到下一個(gè)大版本的開發(fā)了。詳細(xì)內(nèi)容可以參考《版本控制之道：使用subversion》行拢。