springCloud是由spring社区开发的一套开源的微服务框架,基于springboot的功能。因此,对springboot不太熟的同学,建议先去看看springboot相关的知识。
- 这一章,先了解一下springcloud的服务注册框架eureka.
我们先创建一个springcloud的基础项目,spring-cloud-demo,pom配置文件如下:
<!--1.添加对springboot的支持-->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.2.2.RELEASE</version>
<relativePath/>
</parent>
<!--2.添加springcloud的版本-->
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>1.7</maven.compiler.source>
<maven.compiler.target>1.7</maven.compiler.target>
<spring-cloud.version>Hoxton.SR1</spring-cloud.version>
</properties>
<!--3.添加对spring-cloud的依赖管理-->
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>${spring-cloud.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
- 在基础项目上,我们创建eureka的服务module (eureka-server)
1.添加jar
<!--添加eureka的支持-->
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
</dependency>
2.开启eureka服务
@SpringBootApplication
@EnableEurekaServer //开启eureka服务
public class EurekaServerApplication {
public static void main(String[] args) {
SpringApplication.run(EurekaServerApplication.class,args);
}
}
3.添加配置文件application.yml
server:
port: 8763
eureka:
instance:
hostname: localhost
client:
register-with-eureka: false
fetch-registry: false
service-url:
defaultZone: http://${eureka.instance.hostname}:${server.port}/eureka/
- 创建provider服务项目,作为eureka的客户端
1.添加jar
<!--eureka client-->
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
</dependency>
<!--spring web-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
2.开启eureka客户端
@SpringBootApplication
@EnableEurekaClient //开启eureka客户端功能
public class MicroPApplication {
public static void main(String[] args) {
new SpringApplicationBuilder(MicroPApplication.class).run(args);
}
}
3.配置bootstrap.yml
spring:
application:
name: micro-provider
server:
port: 9001
eureka:
client:
service-url:
defaultZone: http://admin:admin@localhost:8763/eureka/
启动服务,打开localhost:8763地址,我们就可以看到,服务已经注册到eureka上了。
![](https://img.haomeiwen.com/i10185696/f0d35621dbb6d88b.png)
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