报错：java.lang.AbstractMethodError: org.springframework.cloud.netflix.ribbon.RibbonLoadBalancerClient.

会出现这个问题是导入 spring-cloud-loadbalancer后nacos中 pring-cloud-starter-netflix-ribbon会与它冲突，造成loadbalanc包失效

所以在common的pom文件中剔除掉nacos中的spring-cloud-starter-netflix-ribbon

<dependency>
   <groupId>com.alibaba.cloudgroupId>
   <artifactId>spring-cloud-starter-alibaba-nacos-discoveryartifactId>
   <exclusions>
      <exclusion>
         <groupId>org.springframework.cloudgroupId>
         <artifactId>spring-cloud-starter-netflix-ribbonartifactId>
      exclusion>
   exclusions>
dependency>

报错：java.lang.AbstractMethodError: org.springframework.cloud.netflix.ribbon.RibbonLoadBalancerClient.choose(Ljava/lang/String;Lorg/springframework/cloud/client/loadbalancer/Request;)Lorg/spring

原文：https://www.cnblogs.com/tfg-devil/p/14656069.html