微服务nacos服务注册与发现

一，以上一篇为基础 微服务从nacos配置中心得到配置信息

　　给service1, service2添加依赖

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

　　给service1, service2添加配置项

nacos: discovery: server-addr: 127.0.0.1:8848 namespace: c22e5019-0bee-43b1-b80b-fc0b9d847501

二，实现service1, service2

　　分别编写基础的controller，向外提供restapi

　　启动service1，service2，就会自动的向nacos注册这两个服务，服务名为spring.application.name

三，测试，编写调用service1, service2的demo模块，

　　1，new -> module -> Maven -> 填写xx -> finish

　　2，添加依赖

<dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-openfeign</artifactId>
        </dependency>
    </dependencies>

　　3，添加配置bootstrap.yml

spring: cloud: nacos: discovery: server-addr: 127.0.0.1:8848 namespace: c22e5019-0bee-43b1-b80b-fc0b9d847501

　　4，编写启动程序，编写controller，编写接口调用service1, service2　

　　启动类：

@SpringBootApplication @EnableFeignClients @EnableDiscoveryClient public class DemoApplication { public static void main(String[] args) { SpringApplication.run(DemoApplication.class, args); } }

　　接口调用：

@FeignClient(value = "service1") public interface UserClient { @GetMapping("/user/name") public String getName(); @GetMapping("/user/address") public String getAddress(); }

@FeignClient(value = "service2") public interface OrderClient { @GetMapping("/order/id") public String getId(); @GetMapping("/order/price") public double getPrice(); }

　　controller：

@RestController @RequestMapping("/demo") public class DemoController { @Autowired private UserClient userClient; @Autowired private OrderClient orderClient; @GetMapping("/test") public String test(){ return "test, name:"
                + userClient.getName() + ", address:" + userClient.getAddress() + "order_id:" + orderClient.getId() + "order_price:" + orderClient.getPrice(); } }

输出：test, name:天涯, address:中国order_id:10000111##order_price:100.5

调用完成！