Spring Cloud Feign记录错误日志

本文主要是介绍Spring Cloud Feign记录错误日志，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！

1.pom.xml

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

2.配置文件

#开启feign
feign.hystrix.enabled=true
#断路器，断路器跳闸后等待多长时间重试
hystrix.command.default.circuitBreaker.sleepWindowInMilliseconds=1000
#断路器，请求发出后多长时间超时
hystrix.command.default.execution.isolation.thread.timeoutInMilliseconds=5000

3.启动类加上注解@EnableFeignClients

@EnableDiscoveryClient
@SpringBootApplication
@EnableFeignClients
public class EurekaHystrixApplication {public static void main(String[] args) {new SpringApplicationBuilder(EurekaHystrixApplication.class).web(true).run(args);}
}

4.Service类

说明fallback与fallbackFactory区别，fallback只是出错运行你指定的方法，拿不到错误信息，fallbackFactory可以拿到错误信息

@FeignClient(name="eureka-hystrix",fallbackFactory=HelloFallbackFactory.class)
public interface HelloService {@RequestMapping(value="/test",method=RequestMethod.GET)  String hiService(@RequestParam("name") String name); @RequestMapping(value="/test1",method=RequestMethod.GET)  String hiService1(@RequestParam("name") String name); 
}

5.接口

public interface HelloFallback extends HelloService{}

6.HelloFallbackFactory，注意添加注解@Component

@Component
public class HelloFallbackFactory implements FallbackFactory<HelloService>{@Overridepublic HelloService create(Throwable e) {System.out.println("错误信息："+e.getMessage());return new HelloFallback() {@Overridepublic String hiService(String name) {return "error";}@Overridepublic String hiService1(String name) {return "error1";}};}}

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