SpringBoot启动报错 NoSuchMethodError: org.apache.coyote.AbstractProtocol.setAcceptCount(I)V

ApplicationContextException: Unable to start web server; nested exception is java.lang.NoSuchMethodError: org.apache.coyote.AbstractProtocol.setAcceptCount(I)V

Description:

An attempt was made to call the method org.apache.coyote.AbstractProtocol.setAcceptCount(I)V but it does not exist. Its class, org.apache.coyote.AbstractProtocol, is available from the following locations:

    jar:file:/D:/MavenRepo/org/apache/tomcat/embed/tomcat-embed-core/8.5.11/tomcat-embed-core-8.5.11.jar!/org/apache/coyote/AbstractProtocol.class

 

It was loaded from the following location:

file:/D:/MavenRepo/org/apache/tomcat/embed/tomcat-embed-core/8.5.11/tomcat-embed-core-8.5.11.jar

 

我启动报错的原因是tomcat相关的jar包spring-boot-starter-tomcat版本冲突了。

已依赖：

<groupId>org.springframework.boot</groupId>

<artifactId>spring-boot-starter-web</artifactId>

1、这个自带spring-boot-starter-tomcat的jar包，不需要额外引入，否则版本不一致会冲突。

2、还有其它人出现的问题可能是将工程部署到tomcat了，取消部署就行了。