【dependencyManagement版本管理】dependencies.dependency.version is missing

maven 的gav的v(版本问题)

报错dependencies.dependency.version is missing

出现的场景

一个项目中有多个模块

• 父模块中出现dependencies.dependency.version is missing

• 子模块中出现dependencies.dependency.version is missing

模块结构

父模块结构（pom.xml）

<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>com.wangguofa.cloud</groupId>
    <artifactId>cloud</artifactId>
    <version>0.0.1</version>
    <name>cloud</name>
    <packaging>pom</packaging>

    <modules>
        <module>cloud-common</module>
    </modules>

    <properties>
        <java.version>1.8</java.version>
        <mybatis-plus-boot-starter.version>3.3.0</mybatis-plus-boot-starter.version>
        <hutool-all.version>5.5.7</hutool-all.version>
        <spring-boot.version>2.3.7.RELEASE</spring-boot.version>
    </properties>

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter</artifactId>
            </dependency>
            <dependency>
                <groupId>com.baomidou</groupId>
                <artifactId>mybatis-plus-boot-starter</artifactId>
                <version>${mybatis-plus-boot-starter.version}</version>
            </dependency>
            <dependency>
                <groupId>cn.hutool</groupId>
                <artifactId>hutool-all</artifactId>
            </dependency>
        </dependencies>
    </dependencyManagement>
    <!-- 父项目中引入部分依赖 -->
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-dependencies</artifactId>
            <version>${spring-boot.version}</version>
            <type>pom</type>
            <scope>import</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-redis</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-aop</artifactId>
        </dependency>
    </dependencies>
</project>

点击Maven的生命周期test出现如下错误

[ERROR] 'dependencies.dependency.version' for org.springframework.boot:spring-boot-starter-data-redis:jar is missing. @ line 48, column 21
[ERROR] 'dependencies.dependency.version' for org.springframework.boot:spring-boot-starter-aop:jar is missing. @ line 52, column 21

是因为少写了一个父类的引用,参考链接：https://blog.csdn.net/qq_32198005/article/details/77671803

添加一个<parent>标签

<parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.3.7.RELEASE</version>
</parent>

子模块结构（pom.xml）

<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <parent>
        <groupId>com.wangguofa.cloud</groupId>
        <artifactId>cloud</artifactId>
        <version>0.0.1</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>
    <groupId>com.wangguofa.cloud</groupId>
    <artifactId>cloud-common</artifactId>
    <version>0.0.1</version>
    <name>cloud-common</name>
    <description>Demo project for Spring Boot</description>

    <properties>
        <java.version>1.8</java.version>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <spring-boot.version>2.3.7.RELEASE</spring-boot.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>cn.hutool</groupId>
            <artifactId>hutool-all</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus-boot-starter</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
            <exclusions>
                <exclusion>
                    <groupId>org.junit.vintage</groupId>
                    <artifactId>junit-vintage-engine</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
    </dependencies>
</project>

点击Maven的生命周期test出现如下错误

'dependencies.dependency.version' for cn.hutool:hutool-all:jar is missing. @ line 24, column 21
'dependencies.dependency.version' for org.springframework.boot:spring-boot-starter:jar is missing. @ line 38, column 21

子项目的版本，如果没有添加是根据父项目的，观察到dependencyManagement并没有写这两个的版本，需要在父项目中添加版本

<dependency>
	<groupId>org.springframework.boot</groupId>
	<artifactId>spring-boot-starter</artifactId>
	<version>${spring-boot.version}</version>
</dependency>
<dependency>
	<groupId>cn.hutool</groupId>
	<artifactId>hutool-all</artifactId>
	<version>${hutool-all.version}</version>
</dependency>