Field client in com.rachel.web.ConsumerController required a bean of type 'org.springframework.cloud.netflix.ribbon.RibbonLoadBalancerClient' that could not be found. - 码上快乐

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Field client in com.rachel.web.ConsumerController required a bean of type 'org.springframework.cloud.netflix.ribbon.RibbonLoadBalancerClient' that could not be found.

本文转载自查看原文 2020-05-31 23:37 851 ribbon

在启动一台消费者微服务时出现了异常

Field client in com.rachel.web.ConsumerController required a bean of type 'org.springframework.cloud.netflix.ribbon.RibbonLoadBalancerClient' that could not be found.

意思是找不到这个bean RibbonLoadBalancerClient

应该是没注入到容器中，检查controller，发现了编译前异常

这个bean没注入，但为什么呢？

解决方式：将RibbonLoadBalancerClient修改为 LoadBalancerClient

原因：

我们的需求是用给RestTemplate加一个ribbon的客户端，让它在发起请求时拥有负载均衡能力

查看@LoadBalanced源码，有一行注释，意思是：这个注解用来给RestTemplate配置使用一个LoadBalancerClient

所以，我们在controller中注入的时候应该注入这个客户端

那到底RibbonLoadBalancerClient和LoadBalancerClient有什么区别呢？

原来前者是后者的实现类

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