eureka2

搭建eureka注册中心

eureka服务配置文件

server:
  port: 10086  #服务端口
spring:
  application:
    name: register-eureka #服务名
eureka:
  client:
    service-url:
      defaultZone: http://localhost:10086/eureka/ #注册中心地址

eureka启动类配置

@SpringBootApplication
@EnableEurekaServer //标记eureka注册中心
public class RegisterEurekaApplication {
    public static void main(String[] args) {
        SpringApplication.run(RegisterEurekaApplication.class, args);
    }

}

服务提供者 serve-eureka

serve-eureka配置

server.port=8080
spring.application.name=serve-eureka 
eureka.client.service-url.defaultZone= http://localhost:10086/eureka/  ##连接注册中心

serve-eureka启动类

@SpringBootApplication
@EnableDiscoveryClient //标记时eureka服务
public class ServeEurekaApplication {
    public static void main(String[] args) {
        SpringApplication.run(ServeEurekaApplication.class, args);
    }

}

服务消费者consume-eureka

consume-eureka配置

server.port=80
spring.application.name=consume-eureka
eureka.client.service-url.defaultZone= http://localhost:10086/eureka/

consume-eureka启动类

@SpringBootApplication
@EnableCircuitBreaker//开启Hystyix熔断
public class ConsumeEurekaApplication {

    public static void main(String[] args) {
        SpringApplication.run(ConsumeEurekaApplication.class, args);
    }
    @Bean
    @LoadBalanced //开启ribbon负载均衡
    public RestTemplate restTemplate(){
        return new RestTemplate();
    }
}

consume-eureka 服务入口

@RestController
@DefaultProperties(defaultFallback = "fallback") //全局熔断
public class LoginController {
    @Autowired
    private RestTemplate restTemplate;
    
    @GetMapping("login")
    @HystrixCommand
    public String login(@RequestParam String message){
        System.out.println("restTemplate请求服务时直接使用服务名进行请求 可以实现负载均衡");
        return restTemplate.getForObject("http://serve-eureka/index/"+message,String.class);
    }

    //全局熔断方法
    public String fallback(){
        return "请求超时";
    }
}