无法解析来自服务器的JSON数据。这是由JSON格式错误引起的

Question

DataTables警告（表ID ='city'）：DataTables警告：无法解析来自服务器的JSON数据。这是由JSON格式错误引起的。

我的json数据如下所示，我正在尝试将json数据设置为数据表

 {"sEcho":1,"iTotalRecords":2,"iTotalDisplayRecords":2,"aaData":[{"id":"1","vid":"A0001","date":"2019-02-07 15:58:53","latitude":"17.00","longitude":"82.20","speed":"25","batery":"98","totalkm":"8","intrkm":"8","control":"0"},{"id":"2","vid":"A0001","date":"2019-02-07 15:58:53","latitude":"17.10","longitude":"82.30","speed":"26","batery":"97","totalkm":"15","intrkm":"15","control":"0"}]}

我写这样的脚本代码来实现

 <script>
  function getId(val) {
    $.ajax({
     type: "post",
    url: "getdata.php",
    data: 'id=' + val,
    dataType: "text",                  
    success: function(response){                    
        $('#city').dataTable({
             "bProcessing": true,
             "sAjaxSource": "getdata.php",
             "aoColumns": [
                    { mData: 'id' } ,
                    { mData: 'vid' },
                    { mData: 'date' },
                    { mData: 'latitude' },
                    { mData: 'longitude' },
                    { mData: 'speed' },
                    { mData: 'batery' },
                    { mData: 'totalkm' },
                    { mData: 'intrkm' },
                    { mData: 'control' }

            ]
       }); 
       }

 });

   }
</script>

在执行此操作时，数据表显示正在处理...。但未正确加载数据表。我不知道这是怎么回事。如果需要更改任何代码，请帮助我