Nacos(2)~消费者

创建消费者项目01-spa-nacos-consumer

01-spa-nacos-consumer为00-spa-parent的项目子项目需要

<parent>
    <groupId>com.cy</groupId>
    <artifactId>00-spa-parent</artifactId>
    <version>1.0-SNAPSHOT</version>
</parent>

<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>
</dependencies>

修改配置文件application.yml

server:
  port: 8090 # 指定端口
spring:
  application:
    name: nacos-consumer # 给服务起个名字

说明：消费者虽然没有注册nacos，但是添加了nacos依赖，会自动自注册

创建启动类

@SpringBootApplication
public class NacosConsumerApplication {

    public static void main(String[] args) {
        SpringApplication.run(NacosConsumerApplication.class,args);
    }
    @Autowired
    private RestTemplate restTemplate;

    /**初始化RestTemplate对象(Spring提供)*/
    @Bean
    public RestTemplate restTemplate(){
        return new RestTemplate();
    }

    @Autowired
    private LoadBalancerClient loadBalancerClient;

    @Value("${spring.application.name}")
    private String applicationName;



    @RestController
    public class ConsumerController{

        @GetMapping("/consumer/doRestEcho/")
        public String doRestEcho(){
            // url写的不灵活
//            String url="http://localhost:8081/provider/echo/"+applicationName;
            // 根据服务名查找服务
            ServiceInstance serviceinstance = loadBalancerClient.choose("nacos-provider");
            String host=serviceinstance.getHost();
            Integer port=serviceinstance.getPort();
//            String url="http://"+host+":"+port+"/provider/echo/"+applicationName;
            String url = String.format("http://%s:%s/provider/echo/%s",
                    serviceinstance.getHost(),
                    serviceinstance.getPort(),
                    applicationName);
            return restTemplate.getForObject(url,String.class);
//            return applicationName+"-> :consumer echo";
//            return url;
        }
    }

}

标签：applicationName,String,url,nacos,Nacos,serviceinstance,public,消费者
来源： https://blog.csdn.net/weixin_48621005/article/details/115532374