项目中Datatables是采用Ajax作为数据源的，当ajax返回数据后，我查看ajax返回的数据发现，ajax返回的数据顺序与datatables表格中显示的数据顺序不一致，请问如何才能这两者显示一致呢？

下面是ajax返回的数据

{

"data": [{

"item": 1,

"sn": "1",

"bus": "1",

"id": "1",

"alise": "Device_Alias",

"opcode": "3",

"addr_start": "1",

"addr_len": "1",

"addr_mapping_head": "0",

"MBstatus": 0

}, {

"item": 1,

"sn": "3",

"bus": "1",

"id": "1",

"alise": "Device_Alias",

"opcode": "3",

"addr_start": "1",

"addr_len": "1",

"addr_mapping_head": "2",

"MBstatus": 0

}, {

"item": 1,

"sn": "2",

"bus": "1",

"id": "1",

"alise": "Device_Alias2",

"opcode": "3",

"addr_start": "1",

"addr_len": "1",

"addr_mapping_head": "3",

"MBstatus": 0

}]

}

下面是表格中的数据

根据ajax的返回Device_Alias2应该在最下面才对，而在表格中却在中间位置。

代码中关于Datatables的配置如下：

var columns_en = [

{title: "SN", data: "sn", name: "sn", orderable: false, searchable: false, visible: false},

{title: "Item", data: "item", name: "item", orderable: true, width: "8%"},

{title: "Serial Port", data: "bus", name: "port", orderable: true, width: "12%"},

{title: "Slave ID", data: "id", name: "id", orderable: true, width: "10%"},

{title: "Alias", data: "alise", name: "alias", orderable: true, width: "12%"},

{title: "Function", data: "opcode", name: "function", orderable: true, width: "8%"},

{title: "Data Address", data: "addr_start", name: "address", orderable: true, width: "15%"},

{title: "Data Length", data: "addr_len", name: "length", orderable: true, width: "15%"},

{title: "Mapping Address Head", data: "addr_mapping_head", name: "mapping", orderable: true, width: "20%"},

];

table = $(TableId).DataTable({

dom: 'lBfrtip',

buttons: [

{

extend: 'collection',

text: i18ns['export'][lang],

buttons: [

'copy',

'excel',

'csv',

'pdf',

'print'

]

}

],

autoWith: false, //自适应宽度

searching: true, //过滤功能

destroy: true, //允许重新实例化Datatables

processing: true, //显示加载信息

info: true, //页脚信息

paging: true, //翻页功能

pagingType: "full_numbers", //显示数字的翻页样式

lengthChange: true, //允许改变每页显示的数据条数

pageLength: 50, //默认每页数据条数

lengthMenu: [[10, 20, 50, 100, -1], [10, 20, 50, 100, "All"]],//自定义每页显示的行数

language: {

processing: "Data Updating...",

lengthMenu: i18ns['lengthmenu'][lang],

zeroRecords: i18ns['norecord'][lang],

emptyTable: i18ns['norecord'][lang],

info: "Showing _START_ to _END_ of _TOTAL_ entries",

infoFiltered: "Have _MAX_ Records in database",

search: i18ns['search'][lang],

paginate: {

first: i18ns['firstpage'][lang],

previous: i18ns['prev'][lang],

next: i18ns['next'][lang],

last: i18ns['lastpage'][lang]

}

}, //多语言配置

columns: columns_en,

ajax: {

url: DataUrl,

dataSrc: "data",

},

initComplete: function () {

},

rowCallback: function (nRow, data, iDisplayIndex) {

data['item'] = iDisplayIndex+1;

$("td", nRow).eq(0).html(data["item"]);

return nRow;

}

});

请问下应该如何修改，才能让顺序一致？