Spring Cloud:如何在没有 Ribbon 的情况下使用 Feign [英] Spring Cloud: How to use Feign without Ribbon

问题描述

我想在没有客户端负载均衡器 Ribbon 的情况下使用 Feign，因为我不想运行 Eureka，它需要分布式和高可用性.相反，具有由 Route53 管理的内部 DNS 名称的内部 ELB 就可以了.

I would like to use Feign without client-side loadbalancer Ribbon because I don't want to run Eureka, which would need to be distributed and highly available. Instead internal ELBs with internal DNS names managed by Route53 will do just fine.

向 @FeignClient 提供普通 URL 总是导致 找不到负载均衡器 ..，所以我尝试阻止 Feign 使用 Ribbon:

Providing plain URLs to @FeignClient always results in no loadbalancer found for .., so I tried preventing Feign from using Ribbon:

Spring Cloud Netflix 带有 FeignRibbonClient，如果 ribbon-loadbalancer 中的 ILoadBalancer 存在，则使用它.但是，如果排除此依赖项FeignConfiguration 被破坏:

Spring Cloud Netflix comes with FeignRibbonClient, which is used if ILoadBalancer from ribbon-loadbalancer is present. However, if this dependency is excluded FeignConfiguration is broken:

Bean creation exception on FactoryBean type check: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'apiVersionClient': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: feign.codec.Decoder org.springframework.cloud.netflix.feign.FeignConfiguration.decoder; nested exception is java.lang.ArrayStoreException: sun.reflect.annotation.TypeNotPresentExceptionProxy

欢迎提出想法:-)

推荐答案

如果你想使用纯 URL 使用:

If you want to use a plain URL use:

@FeignClient(value = "http://example.com", loadbalance = false)

您将使用 Brixton 发布系列:

With the Brixton release train you would use:

@FeignClient(url = "http://example.com", name = "example")

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