doPost Vs doGet methods
doGet() method is used to get information, while doPost() method is used for posting information. doGet() requests can't send large
amount of information and is limited to 240-255 characters. However, doPost()requests passes all of its data, of unlimited length.
A doGet() request is appended to the request URL in a query string and this allows the exchange is visible to the client, whereas
a doPost() request passes directly over the socket connection as part of its HTTP request body and the exchange are invisible to the client.