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

已解决 No Feign Client for loadBalancing defined. Did you forget to include spring-cloud-starter-loadbalancer?
出现这个问题是没有loadbalanc 但是nacos中ribbon会造成loadbalanc包失效
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
在调用方的pom加入

<dependency>
    <groupId>org.springframework.cloud</groupId>
    <artifactId>spring-cloud-loadbalancer</artifactId>
    <version>2.2.4.RELEASE</version>
</dependency>

<dependency>
  <groupId>com.alibaba.cloud</groupId>
  <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
  <exclusions>
    <exclusion>
      <groupId> springframework.cloud</groupId>
      <artifactId>spring-cloud-starter-netflix-ribbon</artifactId>
    </exclusion>
  </exclusions>
</dependency>