问FullCalendar:尝试使用json文件显示事件时接收错误

EN

eventSources: [

    // your event source
    {
        url: '/vehicle_json.php',
        type: 'POST',
        data: {
           // custom_param1: 'something',
            //custom_param2: 'somethingelse'
        },
        error: function() {
            alert('there was an error while fetching events!');
        },
        color: 'yellow',   // a non-ajax option
        textColor: 'black' // a non-ajax option
    }

    // any other sources...

],

events: 'vehicle_json.php',

$.ajax({
    url: "save_booking_details.php",
    type: "POST",
    data: {booking_id: bookingid, date_single: datesingle, date_from: datefrom, date_to: dateto},
    success: function(data){
        //alert(data);
        //location.reload();

        //$('#calendar').fullCalendar('removeEventSource', curSource[0]);
    //$('#calendar').fullCalendar('removeEventSource', curSource[0]);
    $('#calendar').fullCalendar('refetchEvents');
    //Calendar.init();
            //setTimeout(function(){ Calendar.init(); }, 10000);

    }, error: function() {
        alert("something went wrong!");
    }
});