在webProject中创建index.jsp文件<%@ page language=”java” contentType=”text/html; charset=UTF-8” pageEncoding=”UTF-8” %>报错： The superclass “javax.servlet.http.HttpServlet” was not found on the Java Build Pat

今天碰到一个问题，在eclipse里启动tomcat的时候出现以下的错误： Server Tomcat v7.0 at localhost was unable to start within 45 seconds. If the server requires more time, try increasing the timeout in the server editor. 解决办法：