SpringCloud Finchley.SR2中 zuul 的使用与 SpringBoot 2.1.0版本不兼容问题

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问题

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Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2018-11-12 11:08:43.919 ERROR 32936 --- [           main] o.s.b.d.LoggingFailureAnalysisReporter   : 

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APPLICATION FAILED TO START
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Description:

The bean 'counterFactory', defined in class path resource [org/springframework/cloud/netflix/zuul/ZuulServerAutoConfiguration$ZuulCounterFactoryConfiguration.class], could not be registered. A bean with that name has already been defined in class path resource [org/springframework/cloud/netflix/zuul/ZuulServerAutoConfiguration$ZuulMetricsConfiguration.class] and overriding is disabled.

Action:

Consider renaming one of the beans or enabling overriding by setting spring.main.allow-bean-definition-overriding=true

Disconnected from the target VM, address: '127.0.0.1:60894', transport: 'socket'

原因

SpringBoot 和 SpringCloud 的版本不兼容造成。

这里因为 SpringBoot 使用了最新 2.1.0，而 SpringCloud 用的是 Finchley.SR2，而它支持的是 2.0.x 及以下版本（官方说明最高到 2.0.6 ）。

解决

降 SpringBoot 版本到 2.0.x 或者使用 SpringCloud Greenwich.M1。