jsp eclipse import file error

Do not panic build path delete the original jar package, and then add the JRE System Library through the Add, the EAR Libraies
Web App the Libraries namely the Apache Tomcat Server Runtime (corresponding to your tomcat version)

at this time should not have ❌ the error.
But if you are a Java web project, then there must be a database connection, please find the corresponding database connection.
To see if your database user name and password.
I still will not do again pour.
Finally, check your database-driven version. The corresponding version of mysql driver jar package lib stains under
running again. It will be good