一看就会的超详细教程：SpringBoot整合MybatisPlus！>>>

这里根据官网新推出的springcloud Hoxton.SR11版本去集成gateway的一个坑

首先先写版本号：

根据官网推荐，springcloud这个版本支持的springboot是2.3.0。

在集成gateway网关时会报错如下：

***************************
APPLICATION FAILED TO START
***************************

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.buildConnectionProvider(GatewayAutoConfiguration.java:798)

The following method did not exist:

    reactor.netty.resources.ConnectionProvider$Builder.evictInBackground(Ljava/time/Duration;)Lreactor/netty/resources/ConnectionProvider$ConnectionPoolSpec;

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

    jar:file:/D:/repo/io/projectreactor/netty/reactor-netty/0.9.7.RELEASE/reactor-netty-0.9.7.RELEASE.jar!/reactor/netty/resources/ConnectionProvider$Builder.class

It was loaded from the following location:

    file:/D:/repo/io/projectreactor/netty/reactor-netty/0.9.7.RELEASE/reactor-netty-0.9.7.RELEASE.jar


Action:

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

从报错信息中可以看到，我们报错因为以来冲突。所以将reactor-netty的包版本降低，故pom中添加如下依赖。

        <dependency>
            <groupId>io.projectreactor.netty</groupId>
            <artifactId>reactor-netty</artifactId>
            <version>0.9.4.RELEASE</version>
        </dependency>