springcloud2020.0.0 版本+gateway+nacos，服务报错503 Service Unavailable

深碍√TFBOYSˉ_ 2022-10-11 14:58 185阅读 0赞

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

原因：

由于springcloud2020弃用了Ribbon，因此Alibaba在2021版本nacos中删除了Ribbon的jar包，因此无法通过lb路由到指定微服务，出现了503情况。

所以只需要引入springcloud loadbalancer包即可

参考：[https://blog.csdn.net/qq\_41953714/article/details/116239716][https_blog.csdn.net_qq_41953714_article_details_116239716]

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[https_blog.csdn.net_qq_41953714_article_details_116239716]: https://blog.csdn.net/qq_41953714/article/details/116239716