Nacos注册中心使用

　　创建两个工程，一个是nacos-provider, 另一个是naocos-consumer；

　　添加nacos-provider的依赖

<parent>
	<groupId>org.springframework.boot</groupId>
	<artifactId>spring-boot-starter-parent</artifactId>
	<version>2.1.13.RELEASE</version>
	<relativePath/> <!-- lookup parent from repository -->
</parent>

<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.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>2.1.2.RELEASE</version>
	</dependency>

	<dependency>
		<groupId>com.alibaba.cloud</groupId>
		<artifactId>spring-cloud-starter-alibaba-nacos-config</artifactId>
		<version>2.1.2.RELEASE</version>
	</dependency>
</dependencies>

<!--SpringCloud的依赖-->
<dependencyManagement>
	<dependencies>
		<dependency>
			<groupId>org.springframework.cloud</groupId>
			<artifactId>spring-cloud-dependencies</artifactId>
			<version>Greenwich.SR5</version>
			<type>pom</type>
			<scope>import</scope>
		</dependency>
	</dependencies>
</dependencyManagement>

　　

　　添加nacos-consumer依赖

<parent>
	<groupId>org.springframework.boot</groupId>
	<artifactId>spring-boot-starter-parent</artifactId>
	<version>2.1.3.RELEASE</version>
	<relativePath/> <!-- lookup parent from repository -->
</parent>

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

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

	<dependency>
		<groupId>com.alibaba.cloud</groupId>
		<artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
		<version>2.1.2.RELEASE</version>
	</dependency>

</dependencies>

<!--SpringCloud的依赖-->
<dependencyManagement>
	<dependencies>
		<dependency>
			<groupId>org.springframework.cloud</groupId>
			<artifactId>spring-cloud-dependencies</artifactId>
			<version>Greenwich.SR5</version>
			<type>pom</type>
			<scope>import</scope>
		</dependency>
	</dependencies>
</dependencyManagement>

　　

• provider基本代码

@RestController
public class ProviderController {

    @GetMapping("invoke")
    public String invoke() {
        return LocalTime.now() + " invoke;
    }
}

　　

　　application.yml

server:
  port: 8070
spring:
  application:
    name: nacos-provider
  cloud:
    # nacos服务地址
    nacos:
      server-addr: 127.0.0.1:8848

　　

　　在启动类上添加@EnableDiscoveryClient注解

• consumer基本代码

@RestController
public class ConsummerController {

    @Autowired
    private ProviderFeign providerFeign;

    @GetMapping("/test")
    public String test() {
        return providerFeign.invoke();
    }
}

　　

@FeignClient("nacos-provider")
public interface ProviderFeign {

    @GetMapping("invoke")
    String invoke();
}

　　

　　application.yml

server:
  port: 8071
spring:
  application:
    name: nacos-consumer
  cloud:
    # nacos服务地址
    nacos:
      server-addr: 127.0.0.1:8848

　　在启动类添加@EnableFeignClients，@EnableDiscoveryClient注解

　　　　

　　调用结果：

　　　　

　　文档：https://github.com/alibaba/spring-cloud-alibaba/wiki/Nacos-discovery

　　关于依赖的版本，官方不推荐使用孵化器的版本[https://github.com/alibaba/spring-cloud-alibaba/wiki/%E7%89%88%E6%9C%AC%E8%AF%B4%E6%98%8E#%E5%AD%B5%E5%8C%96%E5%99%A8%E7%89%88%E6%9C%AC%E4%BE%9D%E8%B5%96%E5%85%B3%E7%B3%BB%E4%B8%8D%E6%8E%A8%E8%8D%90%E4%BD%BF%E7%94%A8]

　　推荐使用依赖的版本[https://github.com/alibaba/spring-cloud-alibaba/wiki/%E7%89%88%E6%9C%AC%E8%AF%B4%E6%98%8E#%E6%AF%95%E4%B8%9A%E7%89%88%E6%9C%AC%E4%BE%9D%E8%B5%96%E5%85%B3%E7%B3%BB%E6%8E%A8%E8%8D%90%E4%BD%BF%E7%94%A8]