For incorporating dhtmlx spreadsheet , Do we require PHP?

For incorporating dhtmlx spreadsheet in a JSP page , Do we require PHP?

The ready to use backend code exists for php only.
So if you want to use spreadsheet with Java you will need to create your own backend code.

Can you point to any basic examples?

Just need a sample where a basic spreadsheet can be displayed in a JSP page.

There no java samples.

You can check the protocol details. Java server side need to provide JSON in the described format … tocol.html