'dependencies.dependency.version' for org.springframework.cloud:spring-cloud-starter-netflix-eureka-server:jar is missing.

"dependencies.dependency.version"是指在Maven或Gradle构建工具中，用于指定依赖库版本的属性。在你提到的情况中，'dependencies.dependency.version' for org.springframework.cloud:spring-cloud-starter-netflix-eureka-server:jar缺失的意思是，你的项目中缺少了对应的依赖库版本信息。

解决这个问题的方法是在你的项目配置文件（如pom.xml或build.gradle）中添加对应的依赖库版本信息。具体步骤如下：

1. 打开你的项目配置文件（pom.xml或build.gradle）。
2. 在文件中找到对应的依赖库声明，即org.springframework.cloud:spring-cloud-starter-netflix-eureka-server:jar。
3. 在该依赖库声明中添加一个版本号，例如：<version>2.2.3.RELEASE</version>。
4. 保存文件并重新构建你的项目。

这样，你的项目就会使用指定版本的依赖库了。

相关问题

springboot版本是2.7.4，那么spring-cloud-starter-netflix-eureka-client和spring-cloud-dependencies版本应该取多少？

Spring Boot 2.7.4通常与Spring Cloud 2021.1.x版本兼容。

在Spring Cloud 2021.1.x版本中，`spring-cloud-starter-netflix-eureka-client`已被弃用，应改为使用`spring-cloud-starter-netflix-eureka-client`。

您可以在Spring Cloud官方文档中找到版本兼容性表格，确定与Spring Boot 2.7.4兼容的Spring Cloud版本。根据该表格，建议使用Spring Cloud 2021.1.x版本，其中包括`spring-cloud-dependencies`的版本为2021.1.0或更高版本。

因此，您可以在项目中使用以下依赖关系：

<dependencyManagement>
    <dependencies>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-dependencies</artifactId>
            <version>2021.1.0</version>
            <type>pom</type>
            <scope>import</scope>
        </dependency>
    </dependencies>
</dependency>

<dependencies>
    <dependency>
        <groupId>org.springframework.cloud</groupId>
        <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
    </dependency>
</dependencies>

spring-cloud-starter-eureka-server

Spring Cloud Starter Eureka Server is a starter dependency that provides the Eureka Server module of the Spring Cloud Netflix project. Eureka Server is a service registry that enables microservices to discover and communicate with each other. With Eureka, each microservice registers itself with the Eureka Server and queries the Eureka Server to find other microservices it depends on.

The Spring Cloud Starter Eureka Server provides an easy way to set up an Eureka server instance in a Spring Boot application. It includes all the necessary dependencies and configuration to enable the Eureka Server and register services.

To use Spring Cloud Starter Eureka Server, you can add the following dependency to your project:

<dependency>
  <groupId>org.springframework.cloud</groupId>
  <artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
</dependency>

After adding the dependency, you can annotate your main Spring Boot application class with `@EnableEurekaServer` to enable the Eureka Server:

@SpringBootApplication
@EnableEurekaServer
public class EurekaServerApplication {

    public static void main(String[] args) {
        SpringApplication.run(EurekaServerApplication.class, args);
    }

}

Once you have the Eureka Server set up, you can register microservices with it using the `@EnableDiscoveryClient` annotation in your microservice application.

Overall, the Spring Cloud Starter Eureka Server provides an easy and efficient way to set up an Eureka Server in a Spring Boot application and enable microservice communication.