Correct the classpath of your application so that it contains a single, compatible version of javax.

Correct the classpath of your application so that it contains a single, compatible version of javax.servlet.ServletContext

 

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APPLICATION FAILED TO START
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Description:

An attempt was made to call a method that does not exist. The attempt was made from the following location:

    org.apache.catalina.authenticator.AuthenticatorBase.startInternal(AuthenticatorBase.java:1321)

The following method did not exist:

    javax.servlet.ServletContext.getVirtualServerName()Ljava/lang/String;

The method's class, javax.servlet.ServletContext, is available from the following locations:

    jar:file:/C:/Users/Administrator/Desktop/PD/RedisTest/lib/javax.servlet.jar!/javax/servlet/ServletContext.class
    jar:file:/C:/Users/Administrator/.m2/repository/org/apache/tomcat/embed/tomcat-embed-core/9.0.31/tomcat-embed-core-9.0.31.jar!/javax/servlet/ServletContext.class

It was loaded from the following location:

    file:/C:/Users/Administrator/Desktop/PD/RedisTest/lib/javax.servlet.jar

Action:

Correct the classpath of your application so that it contains a single, compatible version of javax.servlet.ServletContext

 

类似的报错是因为jar包重复，删除重复jar包。

 

Spring Boot项目中删除

It was loaded from the following location: 后面的jar包。