No Feign Client for loadBalancing defined

问题：Caused by: java.lang.IllegalStateException: No Feign Client for loadBalancing defined. Did you forget to include spring-cloud-starter-loadbalancer?

解决：由于SpringCloud Feign在Hoxton.M2 RELEASED版本之后不再使用Ribbon而是使用spring-cloud-loadbalancer，所以不引入spring-cloud-loadbalancer会报错 解决方法 加入spring-cloud-loadbalancer依赖 并且在nacos中排除ribbon依赖，不然loadbalancer无效

<dependency>
			<groupId>com.xunqi.gulimall</groupId>
			<artifactId>gulimall-common</artifactId>
			<version>0.0.1-SNAPSHOT</version>
			<exclusions>
				<exclusion>
					<groupId>org.springframework.cloud</groupId>
					<artifactId>spring-cloud-starter-netflix-ribbon</artifactId>
				</exclusion>
			</exclusions>
		</dependency>
 
		<dependency>
			<groupId>org.springframework.cloud</groupId>
			<artifactId>spring-cloud-loadbalancer</artifactId>
		</dependency>