Javascript 数据表中未加载数据

我使用以下代码使用ajax加载datatable。数据未加载到数据库中

$('#new_table').DataTable({
    "processing": true,
    "serverSide": true,
    "ajax":{
    "url": "<?php echo base_url();?>index.php/Members/membergetajax",
    "dataType": "json",
    "type": "POST",
    "dataSrc": "",
    },
    "lengthMenu": [5, 10, 20, 50, 100],
    "pageLength": 5,
    "columnDefs": [{
        "className": "dt-center", "targets": 0
    },{
        "className": "dt-center", "targets": 1
    },{
        "className": "dt-center", "targets": 2
    }],
    "columns": [
        { "data": "id"},
        { "data": "first_name" },
        { "data": "member_id" }
    ]   
});

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请帮助我查找问题，提前感谢

尝试添加name属性

"columns": [
    { "data": "id", "name":"id"},
    { "data": "first_name", "name": "first_name" },
    { "data": "member_id" , "name": "member_id" }
]   

如果您发送的是大写参数，也可以这样尝试：{“data”：“id”，“name”：“id”}，

根据参数大小，您有两种可能性：

• 将dataSrc设置为data-->“dataSrc”：“data”
• ajax调用应该只返回数据值：

  [{
     "id": "1",
     "first_name": "Arun",
      "member_id": "Mem01"
  }, {
     "id": "2",
     "first_name": "Dinesh",
     "member_id": "  Mem02 "
  }, {
      "id": "3",
      "first_name": "Ramesh  ",
      "member_id": "Mem03 "
  }, {
      "id": "4",
      "first_name": "Mahesh ",
      "member_id": "Mem04 "
  }, {
      "id": "5",
      "first_name": "Rajesh ",
      "member_id": "Mem05"
  }]
  

[{
   "id": "1",
   "first_name": "Arun",
    "member_id": "Mem01"
}, {
   "id": "2",
   "first_name": "Dinesh",
   "member_id": "  Mem02 "
}, {
    "id": "3",
    "first_name": "Ramesh  ",
    "member_id": "Mem03 "
}, {
    "id": "4",
    "first_name": "Mahesh ",
    "member_id": "Mem04 "
}, {
    "id": "5",
    "first_name": "Rajesh ",
    "member_id": "Mem05"
}]