onscroll事件

window.onscroll事件

<script>
    window.onscroll = function () {
        var scrollTop = $(this).scrollTop();
        //console.log("scrollTop = " + scrollTop);
        var scrollHeight = $(document).height();
        //console.log("scrollHeight = "+ scrollHeight);
         var windowHeight = $(this).height();
        //console.log("windowHeight = "+ windowHeight);
        //加载更多的视频

        if (scrollTop + windowHeight == (scrollHeight)) {
            console.log(scrollTop,windowHeight,scrollHeight);
             //console.log(scrollHeight);
            var nextpage = Number($("#ul_showlist").attr("data-pagenum")) + 1;//下一页
            var pagecount = Number($("#ul_showlist").attr("data-pagecount"));//总页数，开始载入的时候修改
            if (nextpage <= pagecount) {
                getNextPage(nextpage);
            }
            else {

            }
        }
    }

    function getNextPage(nextpage) {
        //根据nextpage访问服务端返回数据data或者是否最后一页

        var data;
        setData(data);
        //成功后修改下一页
        $("#ul_showlist").attr("data-pagenum", nextpage);
    }


    function setData(data) {
        //data是数据源
        var str = "";
        for (var i=0; i < 2; i++) {
            str += "<li>";
            str +="<a href='showdetail.html'>";//详细页
            str += "<div class=\"left\">";
            str += "<img src=\"${contextPath}/images/showlist2.jpg\"/>";
            str += "</div>";
            str += "<div class=\"right\">";
            str += "<h4>孤芳自赏"+i+"</h4>";
            str += "<p>宝玉说过：“女人是水做的贾宝玉有句名言:女人是水做的,见了便觉清爽,男人是泥做的,见了便觉浑浊。 年轻时..</p>";
            str += "<div class=\"support\">";
            str += "<span class=\"icon love\"></span><span>99</span>";
            str += "<span class=\"icon comment\"></span><span>10</span>";
            str += "</div>";
            str += "</div>";
            str +="</a>";
            str += "<em></em>";
            str += "</li>";
        }
        $("#ul_showlist").append(str);
    }
</script>

window.onscroll事件监听不滑动的问题：
获取windowheigh时获取高度错误，修改为 var windowHeight = window.innerHeight;问题解决了