带有弹簧云的多模块弹簧项目的父级

Question

我已经寻找答案很长时间了，但运气不好，所以我决定发布它。最近，我尝试用父pom制作一些简单的应用程序来轻松管理我的依赖关系版本。所以我给我的父母添加了dependency，pom添加了第一个简单的dependencies，我想出了：

<?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>it.orestes</groupId>
<artifactId>Landlord</artifactId>
<version>0.0.1-SNAPSHOT</version>
<modules>
<module>discovery</module>
<module>property</module>
<module>gateway</module>
</modules>
<packaging>pom</packaging>
<properties>
<springboot.version>2.5.2</springboot.version>
<maven.compiler.source>11</maven.compiler.source>
<maven.compiler.target>11</maven.compiler.target>
<java.version>11</java.version>
<spring-cloud.version>2020.0.3</spring-cloud.version>
</properties>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-dependencies</artifactId>
<version>${springboot.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>${spring-cloud.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<build>
<pluginManagement>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</pluginManagement>
</build>
</project>

然后我做了第一个孩子项目：

<?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>
<parent>
<groupId>it.orestes</groupId>
<artifactId>Landlord</artifactId>
<version>0.0.1-SNAPSHOT</version>
<relativePath/>
</parent>
<groupId>it.orestes.landlord</groupId>
<artifactId>eureka</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>discovery</name>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>

我确实尝试过构建，但最终我使用了

'dependencies.dependency.version' for org.springframework.cloud:spring-cloud-starter-netflix-eureka-server:jar is missing. @ line 18, column 21

现在我不明白为什么spring-boot依赖项被正确地拾取，而spring-cloud却没有如果我把依赖性管理添加到子项目中，效果很好，但这不是我的目标，它开始困扰我，为什么它不是从父项目pom-dependencymanagement继承的？有没有办法像我计划的那样用父pom实现它，或者我可以把带有版本的属性传递给子pom？

Answer 1

将spring云版本从父级移动到子级(网关(模块中。毕竟，并不是所有的子模块都将成为网关，所以也不是所有的模块都必须继承spring-cloud-version属性。

<?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>
<parent>
<groupId>it.orestes</groupId>
<artifactId>Landlord</artifactId>
<version>0.0.1-SNAPSHOT</version>
<relativePath/>
</parent>
<groupId>it.orestes.landlord</groupId>
<artifactId>eureka</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>discovery</name>
<properties>
<spring-cloud.version>2020.0.3</spring-cloud.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>