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- <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
- <html xmlns="http://www.w3.org/1999/xhtml">
- <head>
- <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
- <title>瀑布流-Derek</title>
- <script type="text/javascript" language="javascript" src1="jquery.js"></script>
- <link type="text/CSS" rel="stylesheet" />
- <script type="text/javascript" language="javascript" src1="waterfall.js"></script>
- </head>
- <body>
- <ul id="stage">
- <li></li>
- <li></li>
- <li></li>
- <li></li>
- </ul>
- </body>
- </html>
- /*
- * Javascript文件:waterfall.js
- */
- $(function(){
- jsonajax();
- });
- //这里就要进行计算滚动条当前所在的位置了。如果滚动条离最底部还有100px的时候就要进行调用ajax加载数据
- $(window).scroll(function(){
- //此方法是在滚动条滚动时发生的函数
- // 当滚动到最底部以上100像素时,加载新内容
- var $doc_height,$s_top,$now_height;
- $doc_height = $(document).height(); //这里是document的整个高度
- $s_top = $(this).scrollTop(); //当前滚动条离最顶上多少高度
- $now_height = $(this).height(); //这里的this 也是就是window对象
- if(($doc_height - $s_top - $now_height) < 100) jsonajax();
- });
- //做一个ajax方法来请求data.php不断的获取数据
- var $num = 0;
- function jsonajax(){
- $.ajax({
- url:'data.php',
- type:'POST',
- data:"num="+$num++,
- dataType:'json',
- success:function(json){
- if(typeof json == 'object'){
- var neirou,$row,iheight,temp_h;
- for(var i=0,l=json.length;i<l;i++){
- neirou = json[i]; //当前层数据
- //找了高度最少的列做添加新内容
- iheight = -1;
- $("#stage li").each(function(){
- //得到当前li的高度
- temp_h = Number($(this).height());
- if(iheight == -1 || iheight >temp_h){
- iheight = temp_h;
- $row = $(this); //此时$row是li对象了
- }
- });
- $item = $('<div><img src="'+neirou.img+'" border="0" ><br/>'+neirou.title+'</div>').hide();
- $row.append($item);
- $item.fadeIn();
- }
- }
- }
- });
- }
- /*
- * CSS文件:waterfall.css
- */
- body{text-align:center;}
- #stage{ margin:0 auto; padding:0; width:880px; }
- #stage li{ margin:0; padding:0; list-style:none;float:left; width:220px;}
- #stage li div{ font-size:12px; padding:10px; color:#999999; text-align:left; }
- /*
- * php文件:data.php
- */
- <?php
- $link = mysql_connect("localhost","root","");
- $sql = "use waterfall";
- mysql_query($sql,$link);
- $sql = "set names utf8";
- mysql_query($sql,$link);
- $num = $_POST['num'] *10;
- if($_POST['num'] != 0) $num +1;
- $sql = "select img,title from content limit ".$num.",10";
- $result = mysql_query($sql,$link);
- $temp_arr = array();
- while($row = mysql_fetch_assoc($result)){
- $temp_arr[] = $row;
- }
- $json_arr = array();
- foreach($temp_arr as $k=>$v){
- $json_arr[] = (object)$v;
- }
- //print_r($json_arr);
- echo json_encode( $json_arr );
- //该片段来自于http://www.codesnippet.cn/detail/130620133998.html
来源: http://www.codesnippet.cn/detail/130620133998.html