OpenFeign超时控制

OpenFeign超时控制

• 超时设置，故意设置超时演示出错情况
• 什么是超时控制
• YML文件里开启OpenFeign客户端超时控制

为了方便只演示7001/8001，不使用集群，但是是同理的

超时设置，故意设置超时演示出错情况

1、服务提供方8001故意写暂停程序

@GetMapping(value = "/payment/feign/timeout")
public String paymentFeignTimeout(){
    try { TimeUnit.SECONDS.sleep(3); }catch (Exception e) {e.printStackTrace();}
    return serverPort;
}
 

2、服务消费方80添加超时方法PaymentFeignService

@Component
@FeignClient(value = "CLOUD-PAYMENT-SERVICE")
public interface PaymentFeignService {
    /**
     * 相当于在消费者Controller和生产者Controller中加了一层Service
     *
     * Controller(consumer)--->Service(Feign)-->Controller(Provider)
     * @param id
     * @return
     */
    @GetMapping(value = "/payment/get/{id}")
    public CommonResult getPaymentById(@PathVariable("id") Long id);

    @GetMapping(value = "/payment/feign/timeout")
    public String paymentFeignTimeout();
 

}

3、服务消费方80添加超时方法OrderFeignController

@GetMapping(value = "/consumer/payment/feign/timeout")
public String paymentFeignTimeout(){
   return paymentFeignService.paymentFeignTimeout();
}
 

4、http://localhost/consumer/payment/feign/timeout

错误页面

什么是超时控制

OpenFeign默认等待一秒钟，超过后报错

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OpenFeign默认支持Ribbon

YML文件里开启OpenFeign客户端超时控制

ribbon:
  ReadTimeout:  5000
  ConnectTimeout: 5000