org.apache.jasper.JasperException: Unable to compile class for JSP: An error occurred at line: 22 in the generated java file The method getJspApplicationContext(ServletContext) is undefined for the type JspFactory
加入Myeclipse自带的java EE 6 library即可解决：
原文：http://www.cnblogs.com/hyq0002013/p/5623706.html