Jquery DataTable在单击按钮尝试加载数据时在警报框中显示错误

我使用的是最新的1.10.15版本。单击id为

btn\u search

的按钮时，表格将充满数据

HTML:

我在警报框中发现此错误：

   DataTables warning: table id=example - Requested unknown 
parameter 'id_trace' for row 0, column 0. For more information 
about this error, please see http://datatables.net/tn/4

在firebug中，我可以看到如下ajax响应：

    [{"id_trace":"462036","mac":"e8:03:9a:0c:d0:06","dest_ip":"206.54.163.50",
    "dest_port":"443","src_ip" :"10.10.10.37","src_port":"54707"},{"id_trace":"462037",
"mac":"e8:03:9a:0c:d0:06","dest_ip":"104.193
    .36.37","dest_port":"80","src_ip":"10.10.10.37","src_port":"53544 {"id_trace":"462038",
"mac":"6c:b0:ce:85:50:01","dest_ip":"52.42.48.105",
    "dest_port":"80","src_ip":"10.10.10.38","src_port":"46944"},{"id_trace" .......

---

那么，单击按钮时如何实现数据加载？

您的JSON中有一些严重错误。更正它们，您的代码就会工作。清理后，

Table.rows.add（result）.draw（）立即工作。您看到了哪些错误？json响应未在OP.
中完全显示添加在后面。1）json是通过PHP代码“echo json_encode（$query_result）；”生成的。那我在这里该怎么办？2） 如果我在ajax调用中添加
dataType:json
，则不会显示错误警报，但表中也没有加载数据。我真的不知道您缺少什么，但是如果您传递一个包含您描述的项目的有效json，那么您的客户端代码实际上可以工作->如果您也可以包含ajax调用，那将非常有用。
$sql='SELECT `id_trace`,`mac`, `dest_ip`, `dest_port`, `src_ip`, `src_port` FROM `trace`';

        $sql='SELECT * FROM `trace`';


        $query = $this->db->query($sql);

        $query_result=$query->result();// this codeigniter code
        merely holds an associative array

        echo json_encode($query_result);

   DataTables warning: table id=example - Requested unknown 
parameter 'id_trace' for row 0, column 0. For more information 
about this error, please see http://datatables.net/tn/4

    [{"id_trace":"462036","mac":"e8:03:9a:0c:d0:06","dest_ip":"206.54.163.50",
    "dest_port":"443","src_ip" :"10.10.10.37","src_port":"54707"},{"id_trace":"462037",
"mac":"e8:03:9a:0c:d0:06","dest_ip":"104.193
    .36.37","dest_port":"80","src_ip":"10.10.10.37","src_port":"53544 {"id_trace":"462038",
"mac":"6c:b0:ce:85:50:01","dest_ip":"52.42.48.105",
    "dest_port":"80","src_ip":"10.10.10.38","src_port":"46944"},{"id_trace" .......