No Feign Client for loadBalancing defined. Did you forget to include spring-cloud-starter-loadbalanc

ゝ一世哀愁。 2024-03-27 11:08 226阅读 0赞

快速解决“No Feign Client for loadBalancing defined”的报错，让项目能够正常启动。但是还需要解决nacos和springcloud ribbon jar包不兼容的问题。引入下来依赖即可：

#### 一、问题描述 ####

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

翻译：“没有loadBalancing定义的feign客户端。你忘了包括加入spring-cloud-starter-loadbalancer了吗?”

#### 二、解决IllegalStateException ####

1、报错的原因指出了我们要加入spring-cloud-starter-loadbalancer。在项目的pom.xml文件加入依赖：

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

注意如果不清楚版本的对应关系，不用写版本号，使loadbalancer直接沿用springcloud的版本即可。不然会报错java.lang.ClassNotFoundException: org.springframework.cloud.client.loadbalancer.reactive.OnNoRibbonDefaultCondition

#### 三、解决AbstractMethodError ####

做到这里，项目就可以启动了。但是还会有nacos和springcloud ribbon jar包不兼容的问题，会报错java.lang.AbstractMethodError: org.springframework.cloud.netflix.ribbon.RibbonLoadBalancerClient.choose(Ljava/lang/String;Lorg/springframework/cloud/client/loadbalancer/Request;)Lorg/springframework/cloud/client/ServiceInstance;

未完待续

No Feign Client for loadBalancing defined. Did you forget to include spring-cloud-starter-loadbalanc

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