如何刷新数据表？

Question

我们正在尝试刷新数据表。

我们已经尝试过这种方式，但它显示错误，因为mData未定义。

setTimeout(function () {
oTable.fnClearTable();
oTable.fnDraw();
oTable.fnAddData();
}, 3000);
var oTable = $('#example').DataTable({
"bProcessing": true,
"bJQueryUI": true,
"sPaginationType": "full_numbers",
"sAjaxSource": "../controllers/JQGridBOTMonitoringDashboard.php",
"aoColumns": [{
        "mData": "bot"
    }, {
        "mData": "ip_address"
    }, {
        "mData": "status",
        "fnRender": function (obj) {
            var status = obj.aData.status;
            if (status == 'online') {
                obj.oSettings.aoColumns[obj.iDataColumn].sClass = "greenBackground"
            } else {
                obj.oSettings.aoColumns[obj.iDataColumn].sClass = "redBackground"
            }
            return status;
        }
    }, {
        "mData": "os"
    }, {
        "mData": "os_version"
    }, {
        "mData": "last_execution_time"
    },

    {
        "sTitle": "ACTIONS",
        "sClass": "center",
        "sDefaultContent": '<a class="bot_show"><img src="images/button_view.png"/></a>',
        "bSortable": false,
        "bSearchable": false,
        "fnRender": function (obj) {
            var id = obj.aData.id;
            obj.oSettings.aoColumns[obj.iDataColumn].sClass = id;
        }
    }
]
});