The superclass "javax.servlet.http.HttpServlet" was not found on the Java Build Path maven web报错

创建完成Maven项目以后：
JSP页面顶端出现“红色”的报错信息:The superclass “javax.servlet.http.HttpServlet” was not found on the Java Build Path。原来Javaweb工程类中没有添加Tomcat运行时相关类导致。

下面是具体的解决方法:
1、右击web工程->属性或Build Path->Java Build Path->Libraries-> Add Libray->Server Runtime ->Tomcat Server 2、切换到Java Build Path界面中的Orader and Export,选择Tomcat。