Java Web报错：The superclass javax.servlet.http.HttpServlet was not found on the Java Build Path

一般在jsp页面会显示The superclass javax.servlet.http.HttpServlet was not found on the Java Build Path的错误。

解决方案：

（1）在文件夹右键，点击构建路径

（2）在构建Java路径中，点击右面的添加库

（3）点击Server Runtime

（4）点击Tomcat，然后点击Finish