以下方法适用于基于spring boot的应用
先看以下报错信息：
Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2019-04-28 17:31:14.186 ERROR 12404 --- [ main] o.s.b.d.LoggingFailureAnalysisReporter :
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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:1178)
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:/F:/jdk/jre/lib/ext/servlet-api.jar!/javax/servlet/ServletContext.class
jar:file:/C:\Users\fan\.m2\repository\javax\servlet\javax.servlet-api\3.1.0\javax.servlet-api-3.1.0.jar!/javax/servlet/ServletContext.class
t was loaded from the following location:
jar:file:/F:/jdk/jre/lib/ext/servlet-api.jar!/javax/servlet/ServletContext.class
Action:
Correct the classpath of your application so that it contains a single, compatible version of javax.servlet.ServletContext
Process finished with exit code 1
注意一下这句话：
The method's class, javax.persistence.Table, is available from the following locations:
jar:file:/F:/jdk/jre/lib/ext/servlet-api.jar!/javax/servlet/ServletContext.class
jar:file:/C:\Users\fan\.m2\repository\javax\servlet\javax.servlet-api\3.1.0\javax.servlet-api-3.1.0.jar!/javax/servlet/ServletContext.class
大致是说本地有两个javax.servlet-api.jar 库， 而项目启动时使用了错误的那个库，导致找不到对应方法。解决办法就是删掉一个。
因为我的项目是基于maven的，所以项目应该使用maven下载的jar，F盘的那个显然是不需要的（maven下载的jar包默认存放位置为c盘user目录下的.m2文件夹内），所以删除掉F:/jdk/jre/lib/ext/servlet-api.jar就搞定了。
ps:如果是环境用的是idea，可能需要先关闭idea才能删除目标jar包