如何使用jsp更新Netbeans IDE 8.1中的MySql数据库？

I am trying to make a registration page with around 10 details. But in no way am I able to update the database with those details. I have followed every procedure i found on every site including stackoverflow but still whenever i submit my form nothing happens. Like when i press the submit button it goes to another page and the address bar shows everything correctly but yet i don't know why there is no change in the database. I am new to JSP and Netbeans, so i am not really aware of all the things. I used this as my guide I am trying to make a registration page with ar