出现org.apache.jasper.JasperException: Unable to compile class for JSP:
An error occurred at line: 28 in the generated java file
The method getJspApplicationContext(ServletContext) is undefined for the type JspFactory
按如下步骤解决即可:
1.删除tomcat的work目录里全部内容
2.删除tomcat里的项目lib目录的jsp-api-xx.jar,servlet-api-xx.jar这2个jar包
重启tomcat,jsp页面即可显示正常了