FeignClient配置日誌訪問

1.配置訪問級別DEBUG

// yml檔案中配置日誌級別
logging:
  level:
    com.example.demo.FeignTestService: DEBUG

2.定義配置檔案，無配置檔案日誌不生效

@Configuration
public class FooConfiguration {
    @Bean
    Logger.Level feignLoggerLevel() {
        return Logger.Level.FULL;
    }
}

可以看到日誌已經列印出來

3.優先順序問題

如果yml檔案和@Configuration都配置了，哪個生效的問題，答案是yml檔案中內容生效，參閱官方文件：

If we create both @Configuration bean and configuration properties, configuration properties will win. It will override @Configuration values. But if you want to change the priority to @Configuration, you can change feign.client.default-to-properties to false.

如果想讓@Configuration 中內容先生效，可以配置feign.client.default-to-properties=false