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前一篇文章nacos-简介和初体验（一）我们已经在服务器部署了nacos应用了。

在另外一篇文章中nacos-作为配置中心与springcloud整合（二）已经作为配置中心整合到springcloud

接下来让我们尝试把nacos作为注册中心和springcloud中整合，代替我们springcloud eureka。

一、新建nacos-provider工程

1. springboot工程pom文件

<?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>org.springframework.boot</groupId><artifactId>spring-boot-starter-parent</artifactId><version>2.3.4.RELEASE</version><relativePath/> <!-- lookup parent from repository --></parent><groupId>com.eujian</groupId><artifactId>nacos-provider</artifactId><version>0.0.1-SNAPSHOT</version><name>nacos-provider</name><description>Demo project for Spring Boot</description><properties><java.version>1.8</java.version></properties><dependencies><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency><dependency><groupId>org.projectlombok</groupId><artifactId>lombok</artifactId><optional>true</optional></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-test</artifactId><scope>test</scope></dependency><dependency><groupId>com.alibaba.cloud</groupId><artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId><version>2.2.5.RELEASE</version></dependency></dependencies><build><plugins><plugin><groupId>org.springframework.boot</groupId><artifactId>spring-boot-maven-plugin</artifactId><configuration><excludes><exclude><groupId>org.projectlombok</groupId><artifactId>lombok</artifactId></exclude></excludes></configuration></plugin></plugins></build>
</project>

2. 打上@EnableDiscoveryClient注解
   

   

3. 新建ProviderController类提交接口

@RequestMapping
@RestController
public class ProviderController {@GetMapping("/action")public String action(@RequestParam("action") String action){return "这个是provider的："+action;}
}

4. 新建bootstrap.properties文件

server.port=8082
spring.cloud.nacos.discovery.server-addr=nacoshost:8848
spring.application.name=provider-demo

5. 启动后调用接口http://localhost:8082/action?action=aw测试
   
   

二、新建nacos-cumsumer工程

1. pom文件

<?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>org.springframework.boot</groupId><artifactId>spring-boot-starter-parent</artifactId><version>2.3.4.RELEASE</version><relativePath/> <!-- lookup parent from repository --></parent><groupId>com.eujian</groupId><artifactId>nacos-cumsumer</artifactId><version>0.0.1-SNAPSHOT</version><name>nacos-cumsumer</name><description>Demo project for Spring Boot</description><properties><java.version>1.8</java.version><spring-cloud.version>Hoxton.SR8</spring-cloud.version></properties><dependencies><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency><dependency><groupId>org.projectlombok</groupId><artifactId>lombok</artifactId><optional>true</optional></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-test</artifactId><scope>test</scope></dependency><dependency><groupId>com.alibaba.cloud</groupId><artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId><version>2.2.5.RELEASE</version></dependency><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-starter-openfeign</artifactId></dependency></dependencies><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><build><plugins><plugin><groupId>org.springframework.boot</groupId><artifactId>spring-boot-maven-plugin</artifactId><configuration><excludes><exclude><groupId>org.projectlombok</groupId><artifactId>lombok</artifactId></exclude></excludes></configuration></plugin></plugins></build>
</project>

2. 启动类增加注解@EnableFeignClients @EnableDiscoveryClient
   

   

3. 新建测试类CumsumerController

@RequestMapping
@RestController
public class CumsumerController {@Autowiredprivate ProviderFeign providerFeign;@GetMapping("action")public String action(@RequestParam("action") String action){String result = providerFeign.action(action);return "我是经过cumsumer的"+result;}
}

4. 新建feign类ProviderFeign

import org.springframework.cloud.openfeign.FeignClient;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestParam;
@FeignClient(name = "provider-demo")
public interface ProviderFeign {@GetMapping("action")String action(@RequestParam("action") String action);
}

5. 新建bootstrap.properties文件

server.port=8083
spring.cloud.nacos.discovery.server-addr=nacoshost:8848
spring.application.name=cumsumer-demo

三、测试

查看nacos管理后台

执行命令http://localhost:8083/action?action=aw

码云地址：https://gitee.com/guoeryyj/nacos-demo.git

系列文章：
nacos - 简介和初体验（一）
nacos - 作为配置中心与springcloud整合（二)
nacos - 作为注册中心与springcloud整合（三）
nacos - eureka如何平滑迁移到nacos（四）