分页的首页
<meta http-equiv="Content-Type" content="text/html; charset=utf8" /> <h1 align="center">武侠小说分页</h> <br/> <script src="jquery-1.4.2.min.js"></script> <script> var page=''; function init(page){ document.getElementById("tables").innerHTML=''; var xhr; if(window.XMLHttpRequest){ xhr = new XMLHttpRequest(); }else if(window.ActiveXObject){ xhr =new ActiveXObject("Microsoft.XMLHTTP") } var url="fenye.php"; xhr.open("POST",url,true); xhr.onreadystatechange=callback; xhr.setRequestHeader("Content-Type","application/x-www-form-urlencoded"); if(page){ xhr.send("page="+page); } else {xhr.send("page=1");} var content; function callback(){ if(xhr.readyState==4){ if(xhr.status==200){ var json =eval('('+xhr.responseText+')'); //alert(xhr.responseText); var fenye=json.str; // alert(fenye); document.getElementById('div').innerHTML=fenye; content="<th>ID</th><th>名称</th><th>作者</th><th>出版社</th><th>ISBN号</th><th>类型</th><th>价格</th>"; for(var i=0;i<json.info.length;i++){ content+="<tr><td>"+json.info[i].id+"</td><td>"+json.info[i].name+"</td><td>"+json.info[i].author+"</td><td>"+json.info[i].publisher+"</td><td>"+json.info[i].isbn+"</td><td>"+json.info[i].type+"</td><td>"+json.info[i].price+"</tr>"; document.getElementById("tables").innerHTML=content; } // alert(fenye); } } } } </script>
<body onLoad="init()"> <h3 align="center">jquery实现$.ajax的分页</h3> <table id="tables" style=" width:500px; height:100px; text-align:center" align="center" border="5" bordercolor="#FF6600"> <th>ID</th><th>名称</th><th>作者</th><th>出版社</th><th>ISBN号</th><th>类型</th><th>价格</th> </table> <table align="center" style="margin-top:15px"> <tr><td> <td style="colspan:3;height:20"> <div id="div" style="position:absolute; left: 447px; top: 218px; width: 411px; height: 22px;"></div> </td> </tr> </table> <br /> </body>
分页的php精华代码
<?php //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 $first_a = "<a onclick='init(".$first.")' href='#'><img src='3.jpg' width='50px;' height='20px;'/></a>"; if($page>1){ $prev_a = "<a onclick='init(".$prev.")' href='#'><img src='1.jpg' width='50px;' height='20px;'/></a>"; } if($page<$pages){ $next_a = "<a onclick='init(".$next.")' href='#'><img src='2.jpg' width='50px;' height='20px;'/></a>"; } $last_a = "<a onclick='init(".$last.")' href='#'><img src='4.jpg' width='50px;' height='20px;'/></a>"; @$str = $strtext.$first_a.$prev_a.$next_a.$last_a; //var_dump($str); $info = array('str'=>$str,'info'=>$pageInfo); echo json_encode($info); (编辑:李大同)
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