application/x-www-form-urlencoded

Application/x-www-form-urlencoded: is an encoding format in which form data is encoded as a name/value pair and is a standard encoding format.
When action is get, the browser uses x-www-form-urlencoded encoding to convert the form data into a string (Name1=value1&name2=value2 ... ），
Then append the string to the URL and use the. Split to load the new URL. When the action is post, the browser encapsulates the form data into the HTTP body and then sends it to the server.

application/x-www-form-urlencoded