• 配置

spring:
  application:
    name: gateway-server
  cloud:
    gateway:
      discovery:
        locator:
          enabled: true 
          lower-case-service-id: true 
      default-filters:
        - name: Hystrix # 必須定義為Hystrix 只能是超時熔斷
          args:
            name: fallbackmd
            fallbackUri: forward:/fallback

• 定義熔斷后fallback()

@RestController
public class FallbackController {

    @RequestMapping("/fallback")
    public String fallback() {
        System.out.println("hystrix fallback");
        return "hystrix fallback";
    }
}

這種熔斷只能針對服務(wù)網(wǎng)關(guān)調(diào)用后端服務(wù)接口超時才會生效，后端服務(wù)拋異常無效