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server:
port: 8081
spring:
application:
name: spring-hy-sale
feign:
hystrix:
enabled: true
hystrix:
command:
HelloClient#toHello():
execution:
isolation:
thread:
timeoutInMilliseconds: 500
circuitBreaker:
requestVolumeThreshold: 3
eureka:
client:
serviceUrl:
defaultZone: http://localhost:8761/eureka/
@FeignClient(name = "spring-hy-member", fallback = HelloClientFallback.class)
public interface HelloClient {
@RequestMapping(method = RequestMethod.GET, value = "/hello")
public String hello();
@RequestMapping(method = RequestMethod.GET, value = "/toHello")
public String toHello();
}
@Component
public class HelloClientFallback implements HelloClient {
public String hello() {
return "fallback hello";
}
public String toHello() {
return "fallback timeout hello";
}
}
@RestController
public class FeignController {
@Autowired
private HelloClient helloClient;
@RequestMapping(method = RequestMethod.GET, value = "/hello")
public String hello() {
return helloClient.hello();
}
@RequestMapping(method = RequestMethod.GET, value = "/toHello")
public String toHello() throws InterruptedException {
Thread.sleep(500);
String result = helloClient.toHello();
HystrixCircuitBreaker breaker = HystrixCircuitBreaker.Factory
.getInstance(HystrixCommandKey.Factory
.asKey("HelloClient#toHello()"));
System.out.println("断路器状态：" + breaker.isOpen());
return result;
}
}