springcloudalibaba -nacos config 配置中心以及服务发现和注册

springcloud-config-nacos-client3377

pom

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

 application.yml

spring:
  profiles:
#    active: info
#    active: test
    active: dev # 表示开发环境

 bootstrap.yml

# nacos配置
server:
  port: 3377

spring:
  application:
    name: nacos-config-client
  cloud:
    nacos:
      discovery:
        server-addr: localhost:8848 #Nacos服务注册中心地址
      config:
        server-addr: localhost:8848 #Nacos作为配置中心地址
        file-extension: yaml #指定yaml格式的配置
        group: DEV_GROUP  # 配置分组
        namespace: c938430c-8261-4c06-a8cf-4217d76936b7   # 命名空间
  # ${spring.application.name}-${spring.profile.active}.${spring.cloud.nacos.config.file-extension}
  #   nacos-config-client     -  dev(application.yml文件中的配置)                  .  yaml

controller

@RestController
@RefreshScope //在控制器类加入@RefreshScope注解使当前类下的配置支持Nacos的动态刷新功能。
public class ConfigClientController
{
    @Value("${config.info}")
    private String configInfo;

    @GetMapping("/config/info")
    public String getConfigInfo() {
        return configInfo;
    }
}

主启动类

@EnableDiscoveryClient
@SpringBootApplication
public class NacosConfigClientMain3377
{
    public static void main(String[] args) {
            SpringApplication.run(NacosConfigClientMain3377.class, args);
    }
}

springcloudalibaba-consumer-nacos-order83

pom核心依赖同上

yml配置文件

server:
  port: 83

spring:
  application:
    name: nacos-order-consumer
  cloud:
    nacos:
      discovery:
        server-addr: localhost:8848   #nacos服务的地址


#消费者将要去访问的微服务名称(注册成功进nacos的微服务提供者)  大概就是生产者端的spring.application.name
service-url:
  nacos-user-service: http://nacos-payment-provider

 注入一个restTemplate防止报错

@Configuration
public class RestConfig {

    @Bean
    @LoadBalanced
    public RestTemplate getRestTemplate() {
        return new RestTemplate();
    }
}

controller测试类

@RestController
public class OrderNacosController
{
    @Resource
    private RestTemplate restTemplate;

    @Value("${service-url.nacos-user-service}")
    private String serverURL;

    @GetMapping("/consumer/payment/nacos/{id}")
    public String paymentInfo(@PathVariable("id") Long id)
    {
        return restTemplate.getForObject(serverURL+"/payment/nacos/"+id,String.class);
    }

}

主启动类只需要添加服务发现注解@EnableDiscoveryClient 即可

springcloudalibaba-config-provider-nacos9001

依赖

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

yaml

server:
  port: 9001

spring:
  application:
    name: nacos-payment-provider
  cloud:
    nacos:
      discovery:
        server-addr: localhost:8848 #配置Nacos地址

# 暴露端点
management:
  endpoints:
    web:
      exposure:
        include: '*'

controller测试类

@RestController
public class PaymentController
{
    @Value("${server.port}")
    private String serverPort;

    @GetMapping(value = "/payment/nacos/{id}")
    public String getPayment(@PathVariable("id") Integer id)
    {
        return "nacos registry, serverPort: "+ serverPort+"\t id"+id;
    }
}

启动类

@EnableDiscoveryClient
@SpringBootApplication
public class PaymentMain9001
{
    public static void main(String[] args) {
            SpringApplication.run(PaymentMain9001.class, args);
    }
}