JSP Page error While inserting data

Question

im noob to Programming Please look into the following code.while running the code it gave me some nullpointer exception

Answer 1

you never call establishConnection in your Dao class. As result of this con is null.

add the method establishConnection in the constructor of personDao:

public personDao(){
    establishConnection();
}

and try it again.

Furthermore read the Java code conventions. A class name should start with uppercase: PersonDao would by correct and it follows the Camelcase code conventions.