用ajax實現(xiàn)對數(shù)據(jù)庫的查詢以及對查詢數(shù)據(jù)進行分頁，供大家參考，具體內(nèi)容如下
主頁面代碼
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>無標題文檔</title>
<script src="jquery-1.11.2.min.js"></script>
<style type="text/css">
.dangqian{ background-color:#69F}
</style>
</head>
<body>
<div>
<input type="text" id="key" />
<input type="button" value="查詢" id="chaxun" />
</div>
<table width="100%" border="1" cellpadding="0" cellspacing="0">
<tr>
<td>代號</td>
<td>名稱</td>
<td>父級代號</td>
</tr>
<tbody id="nr">
</tbody>
</table>
<div id="xinxi">
</div>
</body>
js代碼
<script type="text/javascript">
var page = 1; //當前頁 定義一個變量 當前頁
Load(); //加載數(shù)據(jù)
LoadXinXi(); //加載分頁信息
//查詢
$("#chaxun").click(function(){
page = 1;
Load(); //加載數(shù)據(jù)
LoadXinXi(); //加載分頁信息
})
function Load()
{
var key = $("#key").val(); //查詢條件
$.ajax({
url:"chuli.php",
data:{page:page,key:key},
type:"POST",
dataType:"JSON",
success: function(data){
var str = "";
for(var k in data)
{
str +="<tr><td>"+data[k].AreaCode+"</td><td>"+data[k].AreaName+"</td><td>"+data[k].ParentAreaCode+"</td></tr>";
}
$("#nr").html(str);//把數(shù)據(jù)返回表格
}
});
}
functionLoadXinXi()
{
var str = "";
var minys = 1;
var maxys = 1;
var key = $("#key").val();
//查總頁數(shù)
$.ajax({
async:false,
url:"zys.php",
data:{key:key},
type:"POST",
dataType:"TEXT",
success: function(d){
maxys = d;
}
});
str += "<span>總共："+maxys+"頁</span> ";
str += "<span id='prev'>上一頁</span>";
for(var i=page-2;i<page+3;i++)
{
if(i>=minys && i<=maxys)
{
if(i==page)
{
str += "<span class='dangqian' bs='"+i+"'>"+i+"</span> ";
}
else
{
str += "<span class='list' bs='"+i+"'>"+i+"</span> ";
}
}
}
str += "<span id='next'>下一頁</span>";
$("#xinxi").html(str);
//給上一頁添加點擊事件
$("#prev").click(function(){
page = page-1;
if(page<1)
{
page=1;
}
Load(); //加載數(shù)據(jù)
LoadXinXi(); //加載分頁信息
})
//給下一頁加點擊事件
$("#next").click(function(){
page = page+1;
if(page>maxys)
{
page=maxys;
}
Load(); //加載數(shù)據(jù)
LoadXinXi(); //加載分頁信息
})
//給中間的列表加事件
$(".list").click(function(){
page = parseInt($(this).attr("bs"));
Load(); //加載數(shù)據(jù)
LoadXinXi(); //加載分頁信息
})
}
</script>
處理頁面1
<?php
include("DBDA.class.php");
$db = new DBDA();
$key = $_POST["key"];
$num = 20;
$sql = "select count(*) from chinastates where areaname like '%{$key}%'";
$zts = $db->StrQuery($sql);
echo ceil($zts/$num);
處理頁面2
<?php
include("DBDA.class.php");
$db = new DBDA();
$page = $_POST["page"];
$key = $_POST["key"];
$num = 20;
$tiao = ($page-1)*$num;
$sql = "select * from chinastates where areaname like '%{$key}%' limit {$tiao},{$num}";
echo $db->JSONQuery($sql);
以上就是本文的全部內(nèi)容，希望對大家的學習有所幫助
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