项目引入spring cloud gateway的jar报，启动的时候报：
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[2024-07-05 10:10:16.162][main][ERROR][org.springframework.boot.web.embedded.tomcat.TomcatStarter][61]:Error starting Tomcat context. Exception: org.springframework.beans.factory.BeanCreationException. Message: Error creating bean with name 'servletEndpointRegistrar' defined in class path resource [org/springframework/boot/actuate/autoconfigure/endpoint/web/ServletEndpointManagementContextConfiguration$WebMvcServletEndpointManagementContextConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.boot.actuate.endpoint.web.ServletEndpointRegistrar]: Factory method 'servletEndpointRegistrar' threw exception; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'gatewayControllerEndpoint' defined in class path resource [org/springframework/cloud/gateway/config/GatewayAutoConfiguration$GatewayActuatorConfiguration.class]: Unsatisfied dependency expressed through method 'gatewayControllerEndpoint' parameter 2; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'modifyRequestBodyGatewayFilterFactory' defined in class path resource [org/springframework/cloud/gateway/config/GatewayAutoConfiguration.class]: Unsatisfied dependency expressed through method 'modifyRequestBodyGatewayFilterFactory' parameter 0; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'org.springframework.http.codec.ServerCodecConfigurer' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {}
[2024-07-05 10:10:16.188][main][INFO][org.apache.juli.logging.DirectJDKLog][173]:Stopping service [Tomcat]
[2024-07-05 10:10:16.193][main][WARN][org.apache.juli.logging.DirectJDKLog][173]:The web application [ROOT] appears to have started a thread named [spring.cloud.inetutils] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:
sun.misc.Unsafe.park(Native Method)
java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
java.lang.Thread.run(Thread.java:748)
[2024-07-05 10:10:16.196][main][WARN][org.springframework.context.support.AbstractApplicationContext][557]:Exception encountered during context initialization - cancelling refresh attempt: org.springframework.context.ApplicationContextException: Unable to start web server; nested exception is org.springframework.boot.web.server.WebServerException: Unable to start embedded Tomcat
[2024-07-05 10:10:16.213][main][INFO][org.springframework.boot.autoconfigure.logging.ConditionEvaluationReportLoggingListener][136]:
Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
[2024-07-05 10:10:16.434][main][ERROR][org.springframework.boot.diagnostics.LoggingFailureAnalysisReporter][40]:
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APPLICATION FAILED TO START
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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.解决方案：
网关异常报Consider defining a bean of type 'org.springframework.http.codec.ServerCodecConfigurer' in your configuration，
是因为项目引入了spring-boot-starter-web,因为会与spring cloud gateway的webflux冲突。所以项目不要引入spring-boot-starter-web。
本案例是删除spring-boot-starter-web的引入