Maven tomcat7.0的Filter启动失败can not be cast to javax.servlet.Filter问题的解决方法

严重: Exception starting filter Myfilter
java.lang.ClassCastException: cn.huoxinwl.studyDemo.filter.Myfilter cannot be cast to javax.servlet.Filter
	at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:260)
	at org.apache.catalina.core.ApplicationFilterConfig.(ApplicationFilterConfig.java:107)
	at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4775)
	at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5452)
	at org.apache.catalina.util.Lifecyclebase.start(Lifecyclebase.java:150)
	at org.apache.catalina.core.Containerbase$StartChild.call(Containerbase.java:1559)
	at org.apache.catalina.core.Containerbase$StartChild.call(Containerbase.java:1549)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)

Nov 02, 2021 10:58:49 PM org.apache.catalina.core.StandardContext startInternal
严重: Error filterStart

我的是idea用maven的tomcat7.0
解决方法如下

    javax.servlet
    javax.servlet-api
    4.0.1
    provided



    javax.servlet
    jsp-api
    2.0
    provided

在这两个依赖中加标签！！！！！