<dependency>
      <groupId>org.springframework.cloud</groupId>
      <artifactId>spring-cloud-starter-netflix-hystrix</artifactId>
    </dependency>

  @GetMapping("/timeout")
  public String timeout() {
    try {
      Thread.sleep(2000);
    } catch (InterruptedException e) {
      e.printStackTrace();
    }
    System.out.println("休眠了2秒");
    return "timeout test";
  }

server:
 port: 2000
spring:
 application:
  name: idc-gateway2
 redis:
  host: localhost
  port: 6379
  timeout: 6000ms # 連接超時時長（毫秒）
  jedis:
   pool:
    max-active: 1000 # 連接池最大連接數(shù)（使用負值表示沒有限制）
    max-wait: -1ms   # 連接池最大阻塞等待時間（使用負值表示沒有限制）
    max-idle: 10   # 連接池中的最大空閑連接
    min-idle: 5    # 連接池中的最小空閑連接
 cloud:
  consul:
   host: localhost
   port: 8500
  gateway:
   discovery:
    locator:
     enabled: true # gateway可以通過開啟以下配置來打開根據(jù)服務的serviceId來匹配路由,默認是大寫
   routes:
    - id: provider1
     uri: lb://idc-provider1
     predicates:
      - Path=/p1/**
     filters:
      - StripPrefix=1
      - name: Hystrix
       args:
        name: default
        fallbackUri: forward:/defaultfallback # 只有該id下的服務會降級
    - id: provider2
     uri: lb://idc-provider2
     predicates:
      - Path=/p2/**
     filters:
      - StripPrefix=1

# hystrix 信號量隔離，1.5秒后自動超時
hystrix:
 command:
  default:
   execution:
    isolation:
     strategy: SEMAPHORE
     thread:
      timeoutInMilliseconds: 1500

@RestController
public class FallbackController {

@RequestMapping("/defaultfallback")
public Map<String,Object> defaultfallback(){
System.out.println("降級操作...");
Map<String,Object> map = new HashMap<>();
map.put("code",200);
map.put("msg","服務超時降級");
map.put("data",null);
return map;
}
}

curl http://localhost:2000/p1/timeout

{"msg":"服務超時降級","code":200,"data":null}