我会尽量做到透彻。
我有一个使用codeigniter框架用PHP编写的应用程序。
在少数几个页面上,我有很多信息要显示,因此,将其全部拆分为多个Ajax调用是一个好主意。至少在过去两年中一直是这样,但最近我的客户抱怨速度问题。
我已经测试了页面,并对其进行了6/10次加载而没有出现问题。
该页面有6个ajax调用,如图所示,大多数运行时间不到500毫秒。
但是,在大约4/10页重新加载时,它会挂起,导致至少2个ajax调用在5秒内完成,有时甚至长达20秒。
这是一段代码:
$('#table_booking_details').dataTable({
"autoWidth": false,
"responsive" : {
"details": false,
},
"ajax": {
"url" : "/admin/booking/dt_get_rental_date_times/",
"type" : "POST",
"data" : {
"rental_index" : $('#rental_index').val()
}
},
"serverSide" : true,
"processing" : true,
});
public function dt_get_rental_date_times()
{
$rental_index = $this->input->post('rental_index');
$search = $this->input->post('search');
$search_param = $search['value'];
$sort = $this->input->post('order');
$sort_column_index = $sort['0']['column'];
$sort_direction = $sort['0']['dir'];
$length = $this->input->post('length');
$start = $this->input->post('start');
$sort_column_array = array("0" => "collection_date_time", "1" => "return_date_time", "2" => "vehicle_registration", "3" => "(return_date_time - collection_date_time)", "4" => "rental_date_time_cost");
$sort_column = $sort_column_array[$sort_column_index];
$rental_date_times_result = $this->rentals_model->dt_get_rental_date_times($length, $start, $sort_column, $sort_direction, $search_param, $rental_index);
$rental_date_times = $rental_date_times_result['rows'];
$rental_date_times_count = $rental_date_times_result['num_rows'];
$data['recordsTotal'] = $rental_date_times_count;
$data['recordsFiltered'] = $rental_date_times_count;
$results = array();
$i = 0;
foreach ($rental_date_times as $rent)
{
$days = ceil(($rent->return_date_time - $rent->collection_date_time) / 60 / 60 / 24);
$actions = '';
if($rent->swapover == 1)
{
$actions = 'Yes';
}
else
{
$actions = 'No';
}
$results[] = array(
"DT_RowId" => "rentalperiod_" . $rent->rental_date_time_index,
"DT_RowClass" => 'linkable_row',
"0" => timestamp_to_date_time($rent->collection_date_time),
"1" => timestamp_to_date_time($rent->return_date_time),
"2" => $rent->vehicle_registration,
"3" => $days,
"4" => $rent->rental_date_time_cost,
"5" => $actions
);
}
$data['data'] = $results;
echo json_encode($data);
}
首先,这很可能是人们刚刚开始注意到的新事物,似乎有点奇怪,它会随机开始发生。
任何建议,我可以做些什么来改进它,而不必通过重新加载页面将所有内容都移回老式php。
谢谢