每页分页不同的网址

时间:2011-05-11 18:17:30

标签: javascript jquery html ajax

我有这个.js文件用于html中的分页任何人都可以帮助我我需要更改以显示每个页面的不同网址&用户可以保存该网址和可以将它用于将来使用该特定页面。

(。js文件从下面开始)

function Pager(tableName, itemsPerPage) {
this.tableName = tableName;
this.itemsPerPage = itemsPerPage;
this.currentPage = 1;
this.pages = 0;
this.inited = false;

this.showRecords = function(from, to) {        
    var rows = document.getElementById(tableName).rows;
    // i starts from 1 to skip table header row
    for (var i = 1; i < rows.length; i++) {
        if (i < from || i > to)  
            rows[i].style.display = 'none';
        else
            rows[i].style.display = '';
    }
}

this.showPage = function(pageNumber) {
    if (! this.inited) {
        alert("not inited");
        return;
    }

    var oldPageAnchor = document.getElementById('pg'+this.currentPage);
    oldPageAnchor.className = 'pg-normal';

    this.currentPage = pageNumber;
    var newPageAnchor = document.getElementById('pg'+this.currentPage);
    newPageAnchor.className = 'pg-selected';

    var from = (pageNumber - 1) * itemsPerPage + 1;
    var to = from + itemsPerPage - 1;
    this.showRecords(from, to);
}   

this.prev = function() {
    if (this.currentPage > 1)
        this.showPage(this.currentPage - 1);
}

this.next = function() {
    if (this.currentPage < this.pages) {
        this.showPage(this.currentPage + 1);
    }
}                        

this.init = function() {
    var rows = document.getElementById(tableName).rows;
    var records = (rows.length - 1); 
    this.pages = Math.ceil(records / itemsPerPage);
    this.inited = true;
}

this.showPageNav = function(pagerName, positionId) {
    if (! this.inited) {
        alert("not inited");
        return;
    }
    var element = document.getElementById(positionId);

    var pagerHtml = '<span onclick="' + pagerName + '.prev();" class="pg-normal"> &#171 Prev </span> | ';
    for (var page = 1; page <= this.pages; page++) 
        pagerHtml += '<span id="pg' + page + '" class="pg-normal" onclick="' + pagerName + '.showPage(' + page + ');">' + page + '</span> | ';
    pagerHtml += '<span onclick="'+pagerName+'.next();" class="pg-normal"> Next &#187;</span>';            

    element.innerHTML = pagerHtml;
}

}

1 个答案:

答案 0 :(得分:3)

this.showPage()中的

使用类似“pg = 1”的内容更新url哈希:

location.hash = "#pg=" + pageNumber;

该方法会在您的网页历史记录中添加一个项目。如果您不想在页面历史记录中添加项目,请使用以下命令:

location.replace("#pg=" + pageNumber);

然后,在加载页面后,在您致电pager.init()后,您需要致电pager.showPage()。您可以使用此代码来决定是从url ::

加载第一页还是页面
var page = /\bpg=(\d+)\b/.test(location.hash) ? parseInt(RegExp.$1) : 1;
pager.showPage(page);