首先须要在Discovery Service章节中的创立Discovery Server服务
创立weather-service服务

//导入包，理论是通过Spring Initializr导入的，Eureka Discovery,Spring Webspring-boot-starter-webspring-cloud-starter-netflix-eureka-client//配置启动类注解@SpringBootApplication@RestController@EnableDiscoveryClientpublic class WeatherServiceApplication {   private String[] weather = new String[] {"sunny", "cloudy","rainy","windy"};   public static void main(String[] args) {       SpringApplication.run(WeatherServiceApplication.class, args);   }   @GetMapping("/weather")   public String getWeather(){       int rand = ThreadLocalRandom.current().nextInt(0,4);       return weather[rand];   }}//配置文件server.port=9000spring.application.name=weather-serviceeureka.client.service-url.defaultZone=http://localhost:8761/eureka

创立weather-app服务

//导入包，理论是通过Spring Initializr导入的，Eureka Discovery,Spring Web，Hystrix，Actuatorspring-boot-starter-webspring-cloud-starter-netflix-eureka-client//配置启动类注解@SpringBootApplication@EnableDiscoveryClient@EnableCircuitBreaker@RestControllerpublic class WeatherAppApplication {   @Autowired   public WeatherService weatherService;   public static void main(String[] args) {       SpringApplication.run(WeatherAppApplication.class, args);   }   @Bean   @LoadBalanced   public RestTemplate restTemplate(){       return new RestTemplate();   }   @GetMapping("/current/weather")   public String getWeather(){       return "The current weather is " +weatherService.getWeather();   }}//配置业务类，HystrixCommand配置了fallbackMethod办法为unknown@Servicepublic class WeatherService {   @Autowired   private RestTemplate restTemplate;   @HystrixCommand(fallbackMethod = "unknown")   public String getWeather() {       return restTemplate.getForEntity("http://weather-service/weather",String.class).getBody();   }   public String unknown(){       return "unknown";   }}//配置文件server.port=8000spring.application.name=weather-appeureka.client.service-url.defaultZone=http://localhost:8761/eureka//通过拜访http://localhost:8000/current/weather//当weather服务down掉时，输入The current weather is unknown//当weather服务ok时，输入The current weather is windy

配置hystirx-dashboard服务

//导入包，理论是通过Spring Initializr导入的，Hystrix Dashboardspring-cloud-starter-netflix-hystrix-dashboard//配置启动类注解@SpringBootApplication@EnableHystrixDashboardpublic class HystrixDashboardApplication {   public static void main(String[] args) {       SpringApplication.run(HystrixDashboardApplication.class, args);   }}//须要在weather-app服务的配置文件减少如下配置才能够监控到weather-app的服务management.endpoints.web.exposure.include=hystrix.stream//关上http://localhost:8080/hystrix///配置monitor地址http://localhost:8000/actuator/hystrix.stream//新增后即可monitor服务的状况，如下图

配置turbine服务

//导入包，理论是通过Spring Initializr导入的，Turbinespring-cloud-starter-netflix-turbine//配置启动类注解@SpringBootApplication@EnableHystrixDashboardpublic class HystrixDashboardApplication {   public static void main(String[] args) {       SpringApplication.run(HystrixDashboardApplication.class, args);   }}//配置文件server.port=3000spring.application.name=turbine-aggregatoreureka.client.service-url.defaultZone=http://localhost:8761/eurekaturbine.app-config=weather-app,datetime-appturbine.cluster-name-expression='default'//启动服务后，须要在dashboard我的项目中新建monitor的时候减少http://localhost:3000/turbine.stream//即可监控多个服务