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

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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.

本文轉載自查看原文 2020-05-31 23:37 851 ribbon

在啟動一台消費者微服務時出現了異常

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

意思是找不到這個bean RibbonLoadBalancerClient

應該是沒注入到容器中，檢查controller，發現了編譯前異常

這個bean沒注入，但為什么呢？

解決方式：將RibbonLoadBalancerClient修改為 LoadBalancerClient

原因：

我們的需求是用給RestTemplate加一個ribbon的客戶端，讓它在發起請求時擁有負載均衡能力

查看@LoadBalanced源碼，有一行注釋，意思是：這個注解用來給RestTemplate配置使用一個LoadBalancerClient

所以，我們在controller中注入的時候應該注入這個客戶端

那到底RibbonLoadBalancerClient和LoadBalancerClient有什么區別呢？

原來前者是后者的實現類

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