ajax完美实现两个网页 分页功能的实例代码
分页的首页
复制代码 代码如下:
武侠小说分页
<script><BR>var page='';<BR> function init(page){<BR> document.getElementById("tables").innerHTML='';<BR> var xhr;<BR> if(window.XMLHttpRequest){<BR> xhr = new XMLHttpRequest();<BR>}else if(window.ActiveXObject){<BR> xhr =new ActiveXObject("Microsoft.XMLHTTP")<BR>}<BR>var url="fenye.php";<BR> xhr.open("POST",url,true);<BR> xhr.onreadystatechange=callback;<BR> xhr.setRequestHeader("Content-Type","application/x-www-form-urlencoded");<BR> if(page){<BR> xhr.send("page="+page);<BR> }<BR> else {xhr.send("page=1");}<BR> var content;<BR> function callback(){<BR> if(xhr.readyState==4){<BR> if(xhr.status==200){<BR> var json =eval('('+xhr.responseText+')');<BR> //alert(xhr.responseText);<BR> var fenye=json.str;<BR> // alert(fenye);<BR> document.getElementById('div').innerHTML=fenye;<BR> content="<th>ID<th>名称<th>作者<th>出版社<th>ISBN号<th>类型<th>价格";<BR> for(var i=0;i<json.info.length;i++){<BR> content+="<tr><td>"+json.info[i].id+"<td>"+json.info[i].name+"<td>"+json.info[i].author+"<td>"+json.info[i].publisher+"<td>"+json.info[i].isbn+"<td>"+json.info[i].type+"<td>"+json.info[i].price+"";<BR> document.getElementById("tables").innerHTML=content;<BR> }<BR> // alert(fenye);<BR> }<BR> }<BR> }<BR> }<br><br></script>
jquery实现$.ajax的分页
ID | 名称 | 作者 | 出版社 | ISBN号 | 类型 | 价格 |
---|
|
|
分页的php精华代码
复制代码 代码如下:
//命令模型层处理数据
$link=mysql_connect('localhost','root','') or die("失败");
mysql_select_db('books',$link) or die("连接数据库出错了!");
//每页显示记录数
$pagesize = 2;
//求出总的记录数
$sql = "select count(*) as total_rows from books";
$result = mysql_query($sql);
$total_rows = mysql_fetch_array($result);
//求总共的页码数
$pages = ceil($total_rows[0]/$pagesize);
//当前第几页
$page = $_POST['page'];
$strtext = "当前第".$page."页"."总共".$pages."页"."共".$total_rows[0]."记录";
//var_dump($str);
//接下来,我要根据当前点击的页码求出对应的数据
$offset = $pagesize*($page-1);
$sql = "select * from books limit $offset,$pagesize";
mysql_query("set names utf8");
$res=mysql_query($sql);
$rows=array();
while($row=mysql_fetch_assoc($res)){
$rows[]=$row;
}
$pageInfo = $rows;
//echo json_encode($pageInfo);
//var_dump($pageInfo);
//将获得数据链接,后返回
$first=1;
$prev=$page-1;
$next=$page+1;
$last=$pages;
//命令视图层显示数据
$first_a = "";
if($page>1){
$prev_a = "";
}
if($page $next_a = "";
}
$last_a = "";
@$str = $strtext.$first_a.$prev_a.$next_a.$last_a;
//var_dump($str);
$info = array('str'=>$str,'info'=>$pageInfo);
echo json_encode($info);

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