Caused by: java.lang.ClassNotFoundException: HttpServletRequest解决方法

原文地址：https://www.cnblogs.com/gwq369/p/5458076.html

项目启动报错，没有导入HttpServletRequest的jar包，右击项目名-》build path—》configure build path—》add libraries  —》Server Runtime—》 Apache Tomcatv7.0