The following method did not exist, reactor.netty.resources.ConnectionProvider$Builder...

看控制台给出的提示是因为某个方法不存在导致的。

解决方法：我的boot的版本是2.3.2.RELEASE，将gateway依赖中的reactor-netty版本升高即可

        
        <dependency>
            <groupId>org.springframework.cloudgroupId>
            <artifactId>spring-cloud-starter-gatewayartifactId>
            <exclusions>
                <exclusion>
                    <groupId>io.projectreactor.nettygroupId>
                    <artifactId>reactor-nettyartifactId>
                exclusion>
            exclusions>
        dependency>
        <dependency>
            <groupId>io.projectreactor.nettygroupId>
            <artifactId>reactor-nettyartifactId>
            <version>0.9.14.RELEASEversion>
        dependency>