what function to use to accept the return value

what function to use to accept the return value
There is an API that needs to use the form POS to an address and then get the returned data.

This I click Submit will link to the above API address, how to put the value of the API address returned directly on this page, thank you
------to solve the idea----------------------
You can use jquery's Ajax functions to implement the document here is http://api.jquery.com/jQuery.ajax/
------to solve the idea----------------------
$.ajax ({
Type: "POST",
URL: "Https://dnsapi.cn/Record.List",
Data: $ ("#formid"). Serialize (),
Success:function (data) {
alert (data);
}
});

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