1 springcloud-gateway通过服务名访问时报错503，这时候需要gateway服务引入一下：
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-loadbalancer</artifactId>
</dependency>

2 springcloud-gateway 启动报错：org.springframework.cloud.commons.ConfigDataMissingEnvironmentPostProcessor$ImportException: No spring.config.import set，需要引入一下：
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-bootstrap</artifactId>
</dependency>
坑了我3个多小时，记录一下