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6.Maven继承


1.简介
在Maven项目中,多个项目之间会重复使用同一个构建,为了提高构建利用率,可以将其抽出来单独作为父构建,使新项目继承此父构建。

2.继承
(1).新建一个Maven项目,命名为project-parent作为父构建,并配置其pom.xml,最后install至本地仓库

<?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.steven.maven</groupId>
    <artifactId>parent</artifactId>
    <version>1.0-SNAPSHOT</version>

    <properties>
        <java.version>8</java.version>
        <lombok.version>1.18.26</lombok.version>
        <junit.version>4.11</junit.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <version>${lombok.version}</version>
        </dependency>
    </dependencies>

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>junit</groupId>
                <artifactId>junit</artifactId>
                <version>${junit.version}</version>
                <scope>test</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>
</project>

(2).在call项目中继承此父构建

<?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>

    <!--继承父构建  -->
    <parent>
        <groupId>com.steven.maven</groupId>
        <artifactId>parent</artifactId>
        <version>1.0-SNAPSHOT</version>
    </parent>

    <groupId>com.steven.maven</groupId>
    <artifactId>call</artifactId>
    <version>1.0-SNAPSHOT</version>
</project>

因为未在子工程中引入dependencyManagement下的junit依赖,因此在子工程中只可以看到父工程的lombok依赖

6.Maven继承_apache


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