jquery列表自动加载更多

<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>{$Think.lang.E160}</title>
<link href="__CSS__/css.css" rel="stylesheet">
<meta name="viewport" content="width=device-width,height=device-height,inital-scale=1.0,maximum-scale=1.0,user-scalable=no;">
<meta name="apple-mobile-web-app-capable" content="yes">
<meta name="apple-mobile-web-app-status-bar-style" content="black">
<meta name="format-detection" content="telephone=no">
<script src="__JS__/jquery-1.11.1.min.js"></script>
<script>
var cur_page = 1;
var max_page = 0;
var page_size = 15;
     
function get_content(){
    var str = '';
    $.post("__URL__/getSysList", {'size':page_size, 'page':cur_page, 'max_page':max_page}, function(s){
		$('#getMore').hide();
		
		s = $.parseJSON(s);
		
		//首页进入时的首次加载
		if(max_page==0) max_page = parseInt(s.maxPage);
        
        for(i in s.list){
            str +=  '<div class="xttz">'+
					'	<div class="tzyi"><span>'+ s.list[i].sysm_date.date.split(' ')[0] +'</span><b>'+ s.list[i].sysm_title + '</b></div>'+
					'	<div class="tznr">'+ s.list[i].sysm_content +'</div>'+
					'</div>';
        }

		cur_page++;
        $("#list_box").append(str);
    });
}
 

$(function(){
	
	//页面回退时优先加载缓存,并自动滚动到原阅读位置
    var con = localStorage.getItem("active_list_con");
    if(con){
        cur_page = localStorage.getItem("active_list_page");
		max_page = localStorage.getItem("active_list_maxpage");
        $("#list_box").append(con);
        $("html,body").scrollTop(localStorage.getItem("active_list_scroll"));
    }else{
		//页面进入时自动第一次加载内容
    	get_content();
	}
 
    $(window).scroll(function() {
        if (($(window).scrollTop() || window.scrollY) + $(window).height() == $(document).height() && cur_page != max_page) {
            $('#getMore').show();
            get_content();
             
            //加入缓存
            localStorage.setItem("active_list_con", $("#list_box").html());		//已加载的浏览内容
			localStorage.setItem("active_list_maxpage", max_page);		//当前页面总页数
            localStorage.setItem("active_list_page", cur_page);			//当前页数
            localStorage.setItem("active_list_scroll", $(window).scrollTop());		//当前浏览位置
        }
    });

});
</script>

<link href="__CSS__/common.css" rel="stylesheet" type="text/css">
</head>

<body>
<div class="top"><span><a href="/index.php/Index/Thenews/thenews"><img src="__IMG__/topjt.png" width="70%"></a></span>{$Think.lang.E160}</div>

<div id="list_box"></div>

<div id="getMore" style="position:fixed; left:10%; bottom:0; opacity:0.7; 80%; height:40px; line-height:40px; border-radius:6px 6px 0 0; background:#fff; color:#000; text-align:center;">更多内容正在加载...</div>

</body>
</html>
    //ajax-分页获取最新通知
    public function getSysList(){
        //设置where条件
        $where = "sysm_status=0";
    
        $lang = strtolower(cookie('think_language'))=='en-us' ? 2 : 1;
        $where .= " and sysm_lang={$lang}";
    
        //分页查询
        $page = I('post.page', 1, 'intval');
        $pageSize = I('post.size', 15, 'intval');
        $maxPage = I('post.max_page', 0, 'intval');
        $n = $page * $pageSize;
    
        //总页数,第一次获取的时候查询
        if($maxPage==0){
            $count = M()->query("select count(0) as count from SystemMessages where {$where}");
            $max_page = ceil($count[0]['count'] / $pageSize);
        }
    
        $SQL = "SELECT a.sysmid, a.sysm_title, a.sysm_content, a.sysm_date FROM SystemMessages a, (SELECT TOP {$pageSize} sysmid FROM ( SELECT TOP {$n} sysmid FROM SystemMessages WHERE {$where} ORDER BY sysmid DESC ) t ORDER BY t.sysmid ASC ) b WHERE a.sysmid = b.sysmid ORDER BY a.sysmid DESC";
        $list = M()->query($SQL);
        
        $result = ['maxPage'=>$max_page, 'list'=>$list];
        die(json($result));
    }
原文地址:https://www.cnblogs.com/doseoer/p/4445994.html