獲取頭部資訊

$.ajax({
    success: function(data, status, xhr) { 
        console.log(xhr.getResponseHeader("Content-Type"));
    }
});

設定頭部資訊

一、setting引數 headers

$.ajax({

});

二、beforeSend方法

$("#test").click(function() {
                $.ajax({
                    type: "GET",
                    url: "default.aspx",
                    beforeSend: function(request) {
                        request.setRequestHeader("Test", "Chenxizhang");
                    },
                    success: function
 
(result) {
                        alert(result);
                    }
                });
            });