Laravel ajax请求（$.post、$.get）请求header增加csrf_token

  /* $.post $.get 请求header增加csrf token */
  $.each(["get", "post"], function (i, method) {
    $[method] = function (url, data, callback, type) {
      if ($.isFunction(data)) {
        type = type || callback;
        callback = data;
        data = undefined;
      }
      return $.ajax({
        url: url,
        type: method,
        dataType: 'json',
        headers: {'X-CSRF-TOKEN': '{{ csrf_token() }}'},
        contentType: 'application/json',
        data: JSON.stringify(data),
        success: callback,
        beforeSend: function (xhr) {
          xhr.setRequestHeader("X-CSRF-TOKEN", '{{ csrf_token() }}');
        }
      });
    };
  });