datatable表格框架服务器端分页查询设置

js代码以下： $('#mytable').dataTable( { "bServerSide": true, //开启服务器模式，使用服务器端处理配置datatable。注意：sAjaxSource参数也必须被给予为了给datatable源代码来获取所需的数据对于每一个画。 这个翻译有点别扭。开启此模式后，你对datatables的每一个操做 每页显示多少条记录、下一页、上一页、排序（表头）、搜索，这些都会传给服务器相应的值。
            "sAjaxSource": "ajax.php", //给服务器发请求的url
            "aoColumns": [ //这个属性下的设置会应用到全部列，按顺序，没有是空
                {"sDefaultContent": ''},//checkbox column 至关于占位符，等待填充。也能够指定值如 {"mData": 'ip'}
                {"sDefaultContent": ''},//ip column
                {"sDefaultContent": ''},//nip column
                {"sDefaultContent": ''},//role column
                {"sDefaultContent": ''},//gamenserver column
                {"sDefaultContent": ''},//serverid column
                {"sDefaultContent": ''},//status column
                {"sDefaultContent": ''},//remark column
                {"sDefaultContent": ''},//ctime column
                {"sDefaultContent": '', "sClass": "action"},//sClass 表示给本列加class
            ],
            "aoColumnDefs": [//和aoColums相似，但他能够给指定列赋予属性
                {"bSortable": false, "aTargets": [0,7,9]},  //这句话意思是第7,9列（从0开始算）不排序
 ],
            "aaSorting": [[1, "asc"]], //默认排序

            "fnRowCallback": function(nRow, aData, iDisplayIndex) {// 给各列填充内容
                $('td:eq(0)', nRow).html('<label><input type="checkbox" id="hids[]" value="'+aData.id+'-'+aData.status+'" name="hids[]"></label>'); $('td:eq(2)', nRow).html(aData.nip); var role = aData.role.split(' '); var href = ""; for(var i=0;i<role.length;i++){ href += '<a href="host.php?ser='+role[i]+'">'+role[i]+'</a> '; } $('td:eq(3)', nRow).html(href); $('td:eq(4)', nRow).html(aData.gameserver); $('td:eq(5)', nRow).html(aData.serverid); $('td:eq(7)', nRow).html(aData.remark); $('td:eq(8)', nRow).html(aData.ctime); if (aData.status == 1) { if(aData.hostscreenid){ $('td:eq(1)', nRow).html('<a href="http://11.111.111.11:8081/screen/'+aData.hostscreenid+'"><span style="color:red;">'+aData.ip+'</span></a>'); }else{ $('td:eq(1)', nRow).html("<span style='color:red;'>"+aData.ip+"</span>"); } $('td:eq(6)', nRow).html("<span style='color:red;'>线下</span>"); } else if (aData.status == 0) { if(aData.hostscreenid){ $('td:eq(1)', nRow).html('<a href="http://11.111.111.11:8081/screen/'+aData.hostscreenid+'">'+aData.ip+'</a>'); }else{ $('td:eq(1)', nRow).html(aData.ip); } $('td:eq(6)', nRow).html("<span>线上</span>"); } $('td:eq(9)', nRow).html('<a href="host.php?op=del&id='+aData.id+'"> <button class="btn btn-danger btn-sm">删除</button> </a> <button class="btn btn-success btn-sm" data-toggle="modal"data-target="#myModal'+aData.id+'">编辑 </button> '); return nRow; }, } );

 1 服务器端php代码  2 $sEcho = $_GET['sEcho'];  3 $start = $_GET['iDisplayStart'];//从多少开始
 4 $length = $_GET['iDisplayLength'];//数据长度
 5 $sort_th = $_GET['iSortCol_0'];//被排序的列
 6 $sort_type = $_GET['sSortDir_0'];//排序规则
 7 
 8 if(!empty($_GET['sSearch'])){  9     $search = $_GET['sSearch']; 10 } 11 
12 $where = ""; 13 $order = ""; 14 if ($search) { 15     $where = " where concat( xx,xx,xx,xx) like '%$search%' ";//查询
16 } 17 
18 if ($sort_th == 1) { 19     $order = " order by xx " . $sort_type . " "; 20 } elseif ($sort_th == 2) { 21     $order = " order by xx " . $sort_type . " "; 22 } elseif ($sort_th == 4) { 23     $order = " order by xx " . $sort_type . " "; 24 } elseif ($sort_th == 4) { 25     $order = " order by xx " . $sort_type . " "; 26 } elseif ($sort_th == 5) { 27     $order = " order by xx " . $sort_type . " "; 28 } elseif ($sort_th == 6) { 29     $order = " order by xx " . $sort_type . " "; 30 } elseif ($sort_th == 8) { 31     $order = " order by xx " . $sort_type . " "; 32 } 33 $condition = $where . $order; 34 
35 $hosts = getLimitRow("xx,xx,xx,xx", 'table', $condition, $start, $length); 36 $count = getRecordCount('table'); 37 if(count($hosts) > 0){ 38     $host_screenid = getScreenid(); 39     foreach ($hosts as $index => $values) { 40         foreach ($values as $field => $value) { 41             if ($values['status'] == 0) { 42                 $status_str = toutf8('线上'); 43             } else { 44                 $status_str = toutf8('线下'); 45  } 46             $aaData[$index][$field] = toutf8($value); 47             $aaData[$index]['statusstr'] = $status_str; 48             $aaData[$index]['hostscreenid'] = $host_screenid[$aaData[$index]['ip']]; 49  } 50  } 51 
52     if ($search) { 53         $dcount = getRecordCount('table', "where concat( xxx,xx,xx)    like '%$search%' "); 54     } else { 55         $dcount = $count; 56  } 57     $json_data = array('sEcho' => $sEcho, 'iTotalRecords' => $count, 'iTotalDisplayRecords' => $dcount, 'aaData' => $aaData); 58     echo json_encode($json_data); 59     exit; 60 }else{ 61     $aaData = array(); 62     $json_data = array('sEcho' => $sEcho, 'iTotalRecords' => $count, 'iTotalDisplayRecords' => 0, 'aaData' => $aaData); 63     echo json_encode($json_data); 64 }