How to dynamically retrive DataTable value in Servlet?

Hello,
I am developing web Application using Jsp and Servlet. my DataTable is showing properly and using makeEditable() so that cell of DataTable becomes as TextBox but i want to update whole data of DataTable on button click event with Postgresql i want to dynamically retrive whole DataTable data into servlet to make update query with postgresql database.

can any one help me..

thanks alot.