Spring Cloud Hoxton.SR1 gateway 与reactor-netty 0.9.3.RELEASE不兼容

问题现象

 在启动 Spring Cloud Hoxton.SR1 gateway 服务的时候无法启动，错误现象如下：

***************************
APPLICATION FAILED TO START
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Description:

An attempt was made to call a method that does not exist. The attempt was made from the following location:

    org.springframework.cloud.gateway.config.GatewayAutoConfiguration$NettyConfiguration.gatewayHttpClient(GatewayAutoConfiguration.java:597)

The following method did not exist:

    reactor.netty.resources.ConnectionProvider.elastic(Ljava/lang/String;Ljava/time/Duration;)Lreactor/netty/resources/ConnectionProvider;

The method's class, reactor.netty.resources.ConnectionProvider, is available from the following locations:

    jar:file:/Volumes/soft/projects/5irm/gateway/target/gateway-0.0.1.jar!/BOOT-INF/lib/reactor-netty-0.9.3.RELEASE.jar!/reactor/netty/resources/ConnectionProvider.class

It was loaded from the following location:

    jar:file:/Volumes/soft/projects/5irm/gateway/target/gateway-0.0.1.jar!/BOOT-INF/lib/reactor-netty-0.9.3.RELEASE.jar!/

Action:

Correct the classpath of your application so that it contains a single, compatible version of reactor.netty.resources.ConnectionProvider

        在网上找了好久没有解决，最终在 CSDN 上找到一篇文章 《翻车！Spring Boot 2.2.3 不兼容 Spring Cloud Hoxton.SR1》才得以解决。

问题原因

         参考《翻车！Spring Boot 2.2.3 不兼容 Spring Cloud Hoxton.SR1》。

解决方法

    在pom文件中加入 reactor-netty 0.9.4.RELEASE的依赖，如下：


    io.projectreactor.netty
    reactor-netty
    0.9.4.RELEASE