Sorry, I posted "Server to client" way, Here is "client to server" mode
• Create jsonObj JavaScript object
• Use “POST” HTTP method in the open method of the XMLHttpRequest object
• Pass jsonObj JavaScript object in the send method of XMLHttpRequest object
But you did not answer my question . My question is after sending the JSONArray on to the send() with AJAX .
How can the servlet extract each property or element of the Object??
strangely , What you have posted is my question actually .
If you want something you never had do something which you had never done