问在jquery中输入(keypress/keyup)时，有自动补全的插件来查询URL吗？

EN

$('#your_input').autocomplete({
  source: function(request, response) {
    $.ajax({
    ...
      success: function( data ) {
        response( $.map( data.field, function( item ) {
          return {
    ...

<script src="@Url.Content("~/Scripts/jquery-1.7.2.js")" type="text/javascript"></script>
<script type="text/javascript">

      $("#input_id").autocomplete({
                source: function (request, response) {
                    $.ajax({
                        url: 'URL',
                        dataType: "json",
                        data: {
                            filter: request.term // word being typed, can add additional params as needed
                        },
                        success: function (data) {
                            response($.map(eval(data), function (item) {
                                return {
                                    label: item.em_name,
                                    custom_val: item.custom_val,
                                    custom_val2: item.custom_val2
                                }
                            }));
                        }
                    })
                },
                maxLength: 2,   //length before search text gets submitted
                select: function (event, ui) {
                    $("#custom_val_textbox").attr('value', ui.item.custom_val);
                    $("#custom_val_textbox2").attr('value', ui.item.custom_val2);
                }
            });

</script>