SpringBoot整合熔断器的使用

客户端熔断的使用
配置yaml文件 开启熔断器

#熔断器      
feign:
  hystrix:
    enabled: true

创建一个处理错误的类

@Component
public class ServerFeignServiceFallback  {

}

实现FallbackFactory接口 接口中的泛型为要对其进行错误处理的接口

@Component
public class ServerFeignServiceFallback implements FallbackFactory<ServerFeignService> {
}

然后补全create方法，

@Component
public class ServerFeignServiceFallback implements FallbackFactory<ServerFeignService> {
    @Override
    public ServerFeignService create(Throwable throwable) {
        return null;
    }
}

上面补全的create方法返回值为ServerFeignService

所以要new一个匿名内部类

@Component
public class ServerFeignServiceFallback implements FallbackFactory<ServerFeignService> {
    @Override
    public ServerFeignService create(Throwable throwable) {
        return new ServerFeignService(){

        };
    }
}

然后补全ServerFeignService方法中的方法
对接口中的方法进行错误处理

@Component
public class ServerFeignServiceFallback implements FallbackFactory<ServerFeignService> {
    @Override
    public ServerFeignService create(Throwable throwable) {
        return new ServerFeignService(){

            @Override
            public TbUser login(TbUser user) {
                System.out.println("登录出现错误");
                return null;
            }
        };
    }
}