javascript代码实例教程-jQuery前端分页功能开发教程_js

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javascript代码实例教程-jQuery前端分页功能开发教程

发布时间：2018-12-29 发布网站：脚本宝典

脚本宝典收集整理的这篇文章主要介绍了javascript代码实例教程-jQuery前端分页功能开发教程，脚本宝典觉得挺不错的，现在分享给大家，也给大家做个参考。

小宝典致力于为广大程序猿（媛）提供高品质的代码服务，请大家多多光顾小站，小宝典在此谢过。

jQuery前端分页功能开发教程。大家在作分页时，多数是在后台返回一个导航条的htML字符串，其实在前端用js也很好实现。

调用pager方法，输入参数，会返回一个导航条的html字符串。方法的内部比较简单。

代码如下:

/**
* pageSize,  每页显示数
* pageindex, 当前页数
* pageCount 总页数
* url 连接地址
* pager(10, 1, 5, 'Index')使用方法示例
*/
function pager(pageSize, pageIndex, pageCount, url) {
    VAR intPage = 7; //数字显示
    var intBeginPage = 0;//开始的页数
    var intEndPage = 0;//结束的页数
    var intCrossPage = parseInt(intPage / 2); //显示的数字
    var strPage = "<p class='fr'><span class='pageinfo'>第 <font color='#FF0000'>" + pageIndex + "/" + pageCount + "</font> 页每页 <font color='#FF0000'>" + pageSize + "</font> 条</span>";
    if (pageIndex > 1) {
        strPage = strPage + "<a class='pageNav' href='" + url + "?pageIndex=1&pageSize=" + pageSize + "'><span>首页</span></a> ";
        strPage = strPage + "<a class='pageNav' href='" + url + "?pageIndex=" + (pageIndex - 1) + "&pageSize=" + pageSize + "'><span>上一页</span></a> ";
    }
    if (pageCount > intPage) {//总页数大于在页面显示的页数
        if (pageIndex > pageCount - intCrossPage) {//当前页数>总页数-3
            intBeginPage = pageCount - intPage + 1;
            intEndPage = pageCount;
        }
        else {
            if (pageIndex <= intPage - intCrossPage) {
                intBeginPage = 1;
                intEndPage = intPage;
            }
            else {
                intBeginPage = pageIndex - intCrossPage;
                intEndPage = pageIndex + intCrossPage;
            }
        }
    } else {
        intBeginPage = 1;
        intEndPage = pageCount;
    }
    if (pageCount > 0) {
        for (var i = intBeginPage; i <= intEndPage; i++) {
            {
                if (i == pageIndex) {//当前页
                    strPage = strPage + " <a class='current' href='javascript：void(0);'>" + i + "</a> ";
                }
                else {
                    strPage = strPage + " <a class='pageNav' href='" + url + "?pageIndex=" + i + "&pageSize=" + pageSize + "' tITle='第" + i + "页'>" + i + "</a> ";
                }
            }
        }
    }
    if (pageIndex < pageCount) {
        strPage = strPage + "<a class='pageNav' href='" + url + "?pageIndex=" + (pageIndex + 1) + "&pageSize=" + pageSize + "'><span>下一页</span></a> ";
        strPage = strPage + "<a class='pageNav' href='" + url + "?pageIndex=" + pageCount + "&pageSize=" + pageSize + "'><span>尾页</span></a> ";
    }
    return strPage+"</p>";
}

试用这个方法试试

<!DOCTYPE html>
<html XMlns="https://www.w3.org/1999/xhtml">
<head>
    <;meta http-equiv="Content-type" content="text/html; charset=utf-8" />
    <title></title>
    <script src="Script/ajax-pager.js"></script>
    <script src="Script/jquery-1.8.0.js"></script>
    <script type="text/javascript">
        $(function () {
            loadData(1, 10);
            //分页条点击事件
            $(document.body).on('click', '.pageNav', function () {
                var pageSize = Number(getQueryString('pageSize', $(this).attr('href')));
                var pageIndex = Number(getQueryString('pageIndex', $(this).attr('href')));
     &nnbsp;          loadData(pageIndex, pageSize);
                return false;//不跳转页面
            });
        });
        //加载数据
        function loadData(pageIndex, pageSize) {
            $.getJSON('Content/CustomersData.txt', { pageIndex: pageIndex, pageSize: pageSize }, function (data) {
                var beginIndex = (pageIndex - 1) * pageSize;
                var endIndex = pageIndex * pageSize - 1;
                var tbodyHtml = '';
                for (var i = beginIndex; i < endIndex; i++) {
                    if (!data.Rows[i]) {
                        break;
                    }
                    var tbody = '<tr><td>{0}</td><td>{1}</td><td>{2}</td><td>{3}</td><td>{4}</td><td>{5}</td>';
                    tbody += '<td>{6}</td><td>{7}</td><td>{8}</td><td>{9}</td><td>{10}</td></tr>';
                    tbody = tbody.format(data.Rows[i].CustomerID, data.Rows[i].COMpanyName, data.Rows[i].ContactName,
                        data.Rows[i].ContactTitle, data.Rows[i].Address, data.Rows[i].City,
                        data.Rows[i].Region ? data.Rows[i].Region : '', data.Rows[i].PostalCode, data.Rows[i].Country,
                        data.Rows[i].Phone, data.Rows[i].Fax ? data.Rows[i].Fax : '');
                    tbodyHtml += tbody;
                }
                $('#tb').find('tbody').First().html(tbodyHtml);
                var pageCount = parseInt((data.total / pageSize)) + (data.Total % pageSize ? 1 : 0);
                $('#dvPager').html(pager(pageSize, pageIndex, pageCount, 'CustomersData.txt'));
            }
            );
        }
        //字符串格式化
        String.PRototype.format = function (args) {
            var result = this;
            var reg;
            if (arguments.length > 0) {
                if (arguments.length == 1 && typeof (args) == "object") {
                    for (var key in args) {
                        if (args[key] !== undefined) {
                            reg = new RegExp("({" + key + "})", "g");
                            result = result.replace(reg, args[key]);
                        }
                    }
                } else {
                    for (var i = 0; i < arguments.length; i++) {
                        if (arguments[i] !== undefined) {
                            reg = new RegExp("({)" + i + "(})", "g");
                            result = result.replace(reg, arguments[i]);
                        }
                    }
                }
            }
            return result;
        };
        //获取url参数
        function getQueryString(name, url) {
            var reg = new RegExp("(^|&)" + name + "=([^&]*)(&|$)", "i");
            url = url && url.indexOf('?') >= 0 ? url.substring(url.indexOf('?'), url.length) : window.location.seArch;
            var r = url.substr(1).match(reg);
            if (r != null) return unescape(r[2]); return null;
        }
    </script>
</head>
<body>
    <table id="tb" border="1" cellpadding="0" cellspacing="0">
        <thead>
            <tr>
                <th width="90px;">CustomerID</th>
                <th width="240px;">CompanyName</th>
                <th width="130px;">ContactName</th>
                <th width="140px;">ContactTitle</th>
                <th width="205px;">Address</th>
                <th width="90px;">City</th>
                <th width="50px;">Region</th>
                <th width="80px;">PostalCode</th>
                <th width="80px;">Country</th>
                <th width="95px;">Phone</th>
                <th width="95px;">Fax</th>
            </tr>
        </thead>
        <tbody></tbody>
    </table>
    <p id="dvPager"></p>
</body>
</html>
[/code]