将pom.xml中关于spring-boot-start-web模块的jar依赖去掉。web
错误分析:spring
根据上面描述(Description)中信息了解到GatewayAutoConfiguration这个配置中找不到ServerCodecConfig这个Bean。spring-boot
spring cloud gateway server项目是一个spring boot项目,在启动的时候会去加载它的配置,其中有一个叫作GatewayClassPathWarningAutoConfiguration的配置类中有这么一行代码:this
@Configuration @ConditionalOnClass(name = "org.springframework.web.servlet.DispatcherServlet") protected static class SpringMvcFoundOnClasspathConfiguration { public SpringMvcFoundOnClasspathConfiguration() { log.warn(BORDER+"Spring MVC found on classpath, which is incompatible with Spring Cloud Gateway at this time. "+ "Please remove spring-boot-starter-web dependency."+BORDER); } }
在类路径上找到的Spring MVC,此时它与Spring Cloud网关不兼容。请删除spring-boot-start-web依赖项。spa
由于spring cloud gateway是基于webflux的,若是非要web支持的话须要导入spring-boot-starter-webflux而不是spring-boot-start-web。server