Question

我想使用datatable插件来处理大量数据。现在我想在数据表中实现＆＃34;服务器端处理＆＃34; server side scripting

我没有使用ajax，因此我无法理解如何通过此场景中的ajax文件获取表格中的记录。这是我的HTML和javascript：

<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>Untitled Document</title>
<link rel="stylesheet" type="text/css" href="css/jquery.dataTables.css">
<link rel="stylesheet" type="text/css" href="https://cdn.datatables.net/1.10.16/css/jquery.dataTables.min.css">
<link rel="stylesheet" type="text/css" href="https://cdn.datatables.net/scroller/1.4.3/css/scroller.dataTables.min.css">


<script type="text/javascript" language="javascript" src="js/jquery.js"></script>
<script type="text/javascript" language="javascript" src="js/jquery.dataTables.js"></script>
<script type="text/javascript" language="javascript" >

   $(document).ready(function() {
    $('#example').DataTable( {
        "processing": true,
        "serverSide": true,
        "ajax": "server_processing.php"
    } );
} );

</script>

</head>

<body>

<body>
        <div id="wrapper">
            <table id="example">
                <thead>
                    <tr>
                        <th>Id</th>
                        <th>Name</th>
                        <th>Position</th>
                        <th>Description</th>
                    </tr>
                </thead>

            </table>
        </div>

</body>
</html>

在这里我制作了server_side脚本文件，无法理解该怎么做：

<?php 
$link = mysqli_connect("localhost", "root", "", "phwdata");

$query = "select * from persons";
$query2 = mysqli_query($link,$query);
while($fetch= mysqli_fetch_assoc($query2)){;
$id = $fetch['id'];
$name = $fetch['name'];
$position = $fetch['position'];
$description = $fetch['description'];

}
?>

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Answer 1

将服务器端代码更改为此并尝试：检查服务器端的示例转到Here并单击服务器端脚本并查看。

这将提供样本数据。

<?php 
$link = mysqli_connect("localhost", "root", "", "phwdata");
$query = "select * from persons";
$query2 = mysqli_query($link,$query);
$num_rows=mysqli_num_rows($query2);
$columns=array("draw"=>1,"recordsTotal"=>$num_rows,"recordsFiltered"=>$num_rows);

while($fetch= mysqli_fetch_assoc($query2)){;
$columns["data"][]=array($fetch['id'],$fetch['name'],$fetch['position'],$fetch['description']);
}

echo json_encode($columns);

为了您的分页工作，请将服务器端代码更改为：

$table = 'persons';

// Table's primary key
$primaryKey = 'id';
$columns = array(
        array( 'db' => 'id', 'dt' => 0 ),
        array( 'db' => 'name',  'dt' => 1 ),
        array( 'db' => 'position',   'dt' => 2 ),
        array( 'db' => 'description',     'dt' => 3 ),
);

// SQL server connection information
$sql_details = array(
        'user' => 'root',
        'pass' => '',
        'db'   => 'phwdata',
        'host' => 'localhost'
);
require( 'ssp.class.php' );// https://github.com/DataTables/DataTables/blob/master/examples/server_side/scripts/ssp.class.php

echo json_encode(
        SSP::simple( $_GET, $sql_details, $table, $primaryKey, $columns )
);

数据服务器端脚本以处理大量数据

1 个答案: