js分页

<!DOCTYPE html>
<html>
<head>
    <title>js分页</title>
    <style type="text/css">
    /*表格样式*/
    .tbData {
        border-collapse:collapse;
        border-spacing:0px;
        border:solid 3px #ddd;
        font-size:14px;
        font-family:Consolas;
        color:#333;
        background-color:white;
        margin:10px 0px;
    }
    .tbData th, td {
        border:solid 1px #ddd;
        padding:5px 8px;
    }
    .tbData th {
        border-bottom:solid 2px #ddd;
        background-color:#eef;
        font-weight:normal;
        color:blue;
    }
    #divData .tbData tr:hover {
        background-color:#fef;
    }

    /*分页样式*/
    #divPage {
        text-align:left;
        margin:10px 0px;
        height:30px;
        font-size:12px;
    }    
    #divPage a, #divPage span {
        text-decoration:none;
        color:Blue;
        background-color:White;
        padding:3px 5px;
        font-family:Consolas;
        text-align:center;
        border:solid 1px #ddd;
        display:inline-block;
    }    
    #divPage span {
        color:gray;
    }        
    #divPage a:hover {
        color:Red;
    }
    #divPage .aCur {
        background-color:green;
        color:White;
        font-weight:bold;
    }
    </style>
    <script type="text/javascript">
    //js表格 生成表格代码
    //arrTh 表头信息
    //arrTr 数据
    var getTable = function(arrTh, arrTr){
        var s = '<table class="tbData">';
        s += '<tr>';
        for(var i=0; i<arrTh.length; i++) {
            s += '<th>' + arrTh[i] + '</th>';
        }
        s += '</tr>';
        for(var i=0; i<arrTr.length; i++) {
            s += '<tr>';
            for(var j=0; j<arrTr[i].length; j++) {
                s += '<td>' + arrTr[i][j] + '</td>';
            }
            s += '</tr>';
        }
        s += '</table>';
        return s;
    }
    
    //js分页
    //el:分页容器 count:总记录数 pageStep:每页显示多少个 pageNum:第几页 fnGo:分页跳转函数
    var jsPage = function(el, count, pageStep, pageNum, fnGo) {
        this.getLink = function(fnGo, index, pageNum, text) {
            var s = '<a href="#p' + index + '" onclick="' + fnGo + '(' + index + ');" ';
            if(index == pageNum) {
                s += 'class="aCur" ';
            }
            text = text || index;
            s += '>' + text + '</a> ';            
            return s;
        }
        
        //总页数
        var pageNumAll = Math.ceil(count / pageStep);
        if (pageNumAll == 1) {
            divPage.innerHTML = '';
            return;
        }
        var itemNum = 5; //当前页左右两边显示个数
        pageNum = Math.max(pageNum, 1);
        pageNum = Math.min(pageNum, pageNumAll);
        var s = '';
        if (pageNum > 1) {
            s += this.getLink(fnGo, pageNum-1, pageNum, '上一页');
        } else {
            s += '<span>上一页</span> ';
        }
        var begin = 1;
        if (pageNum - itemNum > 1) {
            s += this.getLink(fnGo, 1, pageNum) + '... ';
            begin = pageNum - itemNum;
        }
        var end = Math.min(pageNumAll, begin + itemNum*2);
        if(end == pageNumAll - 1){
            end = pageNumAll;
        }
        for (var i = begin; i <= end; i++) {
            s += this.getLink(fnGo, i, pageNum);
        }
        if (end < pageNumAll) {
            s += '... ' + this.getLink(fnGo, pageNumAll, pageNum);
        }
        if (pageNum < pageNumAll) {
            s += this.getLink(fnGo, pageNum+1, pageNum, '下一页');
        } else {
            s += '<span>下一页</span> ';
        }
        var divPage = document.getElementById(el);
        divPage.innerHTML = s;
    }

    //js随机内容
    var jsRand = {};
    //随机数字
    jsRand.int = function(min,max){
        return this.show('i', min, max);
    }
    //随机字符
    jsRand.str = jsRand.string = function(min,max){
        return this.show('', min, max);
    }
    //随机日期
    jsRand.date = function(){
        return this.show('d');
    }
    //随机金额
    jsRand.money = function(min,max){
        return this.show('m', min, max);
    }
    //随机汉字
    jsRand.ch = function(min,max){
        return this.show('ch', min, max);
    }
    jsRand.show = function(type,min,max) {
        var str;
        if(type == 'i') {
            str = this.rand(min, max);
        } else if(type == 'm') {
            str = '' + this.rand(min, max) + '.00';
        } else if(type == 'd') {
            str = this.rand(1990,2020) + '-';
            str += this.rand(1,12,2) + '-';
            str += this.rand(1,31,2) + ' ';
            str += this.rand(0,23,2) + ':';
            str += this.rand(1,59,2);
        } else {
            min = min||0;
            max = max||10;
            str = '';
            var len = this.rand(min, max);
            for(var i=0; i<len; i++) {
                var iChar = this.rand(48, 122);
                if(type == 'ch') {
                    iChar = this.rand(19968, 40869);
                }
                var chr = String.fromCharCode(iChar);
                chr = chr.replace(/&/g,"&amp;")
                        .replace(/</g,"&lt;")
                        .replace(/>/g,"&gt;")
                        .replace(/ /g,"&nbsp;")
                        .replace(/'/g,"&apos;")
                        .replace(/"/g,"&quot;");
                str += chr;
            }
        }
        
        return str;
    }

    jsRand.rand = function(min, max, len) {
        min = min||0;
        max = max||1000;
        var val = min + Math.round(Math.random() * (max-min));
        if(len) {
            while((''+val).length < len) {
                val = '0' + val;
            }
        }
        return val;
    }
    </script>
</head>
<body>
<div id="divData" style="font-family:Consolas;">

</div>
<div id="divPage"></div>
<script type="text/javascript">
    function goPage(pageIndex) {
        var arrTh = ['ID','名称','金额','备注','添加时间'];
        var arrTr = [];
        for(var i=0; i<20; i++)
        {
            arrTr.push([
                jsRand.int(1, 1000), 
                jsRand.str(), 
                jsRand.money(), 
                jsRand.show('ch', 0, 20), 
                jsRand.date()
            ]);
        }
        document.getElementById('divData').innerHTML = getTable(arrTh, arrTr);
        jsPage('divPage', 800, 10, pageIndex, 'goPage');
    }
    goPage(1);
</script>
</body>
</html>
原文地址:https://www.cnblogs.com/weiios/p/4254701.html