spring cloud 学习笔记0x12

[hugeterry]

断路器聚合监控Hystrix Turbine

• 基于笔记0x11的工程，创建一个名为service-lucy的服务，代码和eurekaclient一样，端口改为8663
• 创建service-turbine，加入Hystrix Turbine起步依赖

  <dependency>
      <groupId>org.springframework.cloud</groupId>
      <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
  </dependency>
  <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-web</artifactId>
  </dependency>
  <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-actuator</artifactId>
  </dependency>
  <dependency>
      <groupId>org.springframework.cloud</groupId>
      <artifactId>spring-cloud-starter-netflix-hystrix</artifactId>
  </dependency>
  <dependency>
      <groupId>org.springframework.cloud</groupId>
      <artifactId>spring-cloud-starter-netflix-hystrix-dashboard</artifactId>
  </dependency>
  <dependency>
      <groupId>org.springframework.cloud</groupId>
      <artifactId>spring-cloud-starter-netflix-turbine</artifactId>
  </dependency>
  <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-test</artifactId>
      <scope>test</scope>
  </dependency>

• 在application加入注解@EnableTurbine

  @SpringBootApplication
  @EnableEurekaClient
  @EnableDiscoveryClient
  @RestController
  @EnableHystrix
  @EnableHystrixDashboard
  @EnableCircuitBreaker
  @EnableTurbine
  public class ServiceTurbineApplication {
  
      public static void main(String[] args) {
          SpringApplication.run(ServiceTurbineApplication.class,   args);
      }
  }

• 配置相关信息，turbine聚合eurekaclient与service-lucky的信息

  server.port=8667
  
  spring.application.name=service-lucky
  eureka.client.serviceUrl.defaultZone=http://localhost:8767/eureka/
  management.endpoint.shutdown.enabled=true
  
  turbine.app-config=service-hi,service-lucy
  turbine.aggregator.cluster-config=default
  turbine.cluster-name-expression=new String("default")
  turbine.combine-host-port=true

• 依次启动以下工程
  • eurekaclient 8662
  • service-lucky 8663
  • eurekaserver 8767
  • service-turbine 8667
• 访问http://localhost:8667/turbine.stream ，可以看到请求数据信息
• 访问http://localhost:8662/hi?name=hugeterry ，http://localhost:8663/hi?name=hugeterry 看到返回信息
• 访问http://localhost:8663/hystrix ，配上http://localhost:8667/turbine.stream ，确认可看到2个服务的聚合数据