在项目中引入springcloud中的gateway时报以下错误
Description:
Parameter 0 of method modifyRequestBodyGatewayFilterFactory in org.springframework.cloud.gateway.config.GatewayAutoConfiguration
required a bean of type 'org.springframework.http.codec.ServerCodecConfigurer' that could not be found.Action:
Consider defining a bean of type 'org.springframework.http.codec.ServerCodecConfigurer' in your configuration.
这个是由于依赖冲突，spring-cloud-starter-gateway与spring-boot-starter-web和spring-boot-starter-webflux依赖冲突
解决方式：
在引入gateway时过滤掉上面两个依赖
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-gateway</artifactId>
<exclusions>
<exclusion>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</exclusion>
<exclusion>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-webflux</artifactId>
</exclusion>
</exclusions>
</dependency>
springboot整合gateway启动失败
问题：
springboot整合gateway启动失败
***************************
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.gatewayHttpClient(GatewayAutoConfiguration.java:622)
The following method did not exist:
reactor.netty.resources.ConnectionProvider.elastic(Ljava/lang/String;Ljava/time/Duration;Ljava/time/Duration;)Lreactor/netty/resources/ConnectionProvider;
The method's class, reactor.netty.resources.ConnectionProvider, is available from the following locations:
jar:file:/C:/Users/Administrator/.m2/repository/io/projectreactor/netty/reactor-netty/0.9.1.RELEASE/reactor-netty-0.9.1.RELEASE.jar!/reactor/netty/resources/ConnectionProvider.class
It was loaded from the following location:
file:/C:/Users/Administrator/.m2/repository/io/projectreactor/netty/reactor-netty/0.9.1.RELEASE/reactor-netty-0.9.1.RELEASE.jar
Action:
Correct the classpath of your application so that it contains a single, compatible version of reactor.netty.resources.ConnectionProvider
Disconnected from the target VM, address: '127.0.0.1:55875', transport: 'socket'
Process finished with exit code 1
这块主要是版本兼容的问题，
最初用的版本是：
<dependency>
<groupId>io.projectreactor.netty</groupId>
<artifactId>reactor-netty</artifactId>
<version>0.9.4.RELEASE</version>
</dependency>
网上有的是需要把这个版本降低，我这是降低了也不行
最后升高了版本改成了：
<dependency>
<groupId>io.projectreactor.netty</groupId>
<artifactId>reactor-netty</artifactId>
<version>0.9.14.RELEASE</version>
</dependency>
本项目里springboot版本为：2.3.1，根据自己项目需要吧，看一下自己项目中各个版本之间的问题
以上为个人经验，希望能给大家一个参考，也希望大家多多支持。
