爱站网长尾词挖掘优化的概念
文章目录
- 配置
- maven
- 启动类添加
- yml
- 使用
- 添加Feign服务
- Controller
- 其他设置
- 超时设置
- YML开启OpenFeign客户端超时控制（Ribbon Timeout）
- OpenFeign日志打印功能
- 日志级别
- YML开启日志
配置
maven
<dependencies><!--openfeign--><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-starter-openfeign</artifactId></dependency>
</dependencies>
启动类添加
激活Feign
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.openfeign.EnableFeignClients;@SpringBootApplication
@EnableFeignClients //激活OpenFeign
public class OrderFeignMain80
{public static void main(String[] args) {SpringApplication.run(OrderFeignMain80.class, args);}
}
yml
这里用的是eureka，nacos参考nacos相关配置
server:port: 80
eureka:client:register-with-eureka: falseservice-url:defaultZone: http://eureka7001.com:7001/eureka/,http://eureka7002.com:7002/eureka/
使用
添加Feign服务
@Component
@FeignClient(value = "CLOUD-PAYMENT-SERVICE")
public interface PaymentFeignService
{@GetMapping(value = "/payment/get/{id}")public CommonResult<Payment> getPaymentById(@PathVariable("id") Long id);@GetMapping(value = "/payment/feign/timeout")public String paymentFeignTimeout();
}
Controller
调用PaymentFeignService，之后通过Feign调用相关服务
@RestController
@Slf4j
public class OrderFeignController
{@Resourceprivate PaymentFeignService paymentFeignService;@GetMapping(value = "/consumer/payment/get/{id}")public CommonResult<Payment> getPaymentById(@PathVariable("id") Long id){return paymentFeignService.getPaymentById(id);}@GetMapping(value = "/consumer/payment/feign/timeout")public String paymentFeignTimeout(){// OpenFeign客户端一般默认等待1秒钟return paymentFeignService.paymentFeignTimeout();}
}
其他设置
超时设置
OpenFeign默认等待1秒钟，超过后报错
OpenFeign默认支持Ribbon
YML开启OpenFeign客户端超时控制（Ribbon Timeout）
server:port: 80eureka:client:register-with-eureka: falseservice-url:defaultZone: http://eureka7001.com:7001/eureka/,http://eureka7002.com:7002/eureka/
#设置feign客户端超时时间(OpenFeign默认支持ribbon)
ribbon:
#指的是建立连接所用的时间，适用于网络状况正常的情况下,两端连接所用的时间ReadTimeout: 5000
#指的是建立连接后从服务器读取到可用资源所用的时间ConnectTimeout: 5000
OpenFeign日志打印功能
对Feign接口的调用情况进行监控和输出
日志级别
- NONE：默认的，不显示任何日志；
- BASIC：仅记录请求方法、URL、响应状态码及执行时间；
- HEADERS：除了 BASIC 中定义的信息之外，还有请求和响应的头信息；
- FULL：除了 HEADERS 中定义的信息之外，还有请求和响应的正文及元数据。
import feign.Logger;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;@Configuration
public class FeignConfig
{@BeanLogger.Level feignLoggerLevel(){// 此处修改日志级别return Logger.Level.FULL;}
}
YML开启日志
logging:level:# feign日志以什么级别监控哪个接口com.atguigu.springcloud.service.PaymentFeignService: debug