一、page方法
/****************************************************** * Created User: * Created Time: 2015/12/5. * 说 明:分页对象 ******************************************************/ function Page(config) { if (!config) { config = {}; } this.page = config.page || 1; this.pageSize = config.pageSize || 10; this.numOfPages = config.numOfPages || 5; //this.startPage=this.getStartPage(); //this.endPage=this.getEndPage(); if (this.page <= 1) { this.start = 0; } else { this.start = (this.page - 1) * this.pageSize; } this.end = this.pageSize * this.page; //if (!config.data) { // this.data = []; //} this.totalCount = config.totalCount || 0; /** * 获取总页码数 * @returns {number} */ this.getTotalPage = function () { return Math.ceil(this.totalCount / this.pageSize); } /** * 获取当前开始页面 * @returns {number} */ this.getStartPage = function () { if (this.getTotalPage() < 2) { return 1; } else { var pageStart = (this.page % this.numOfPages === 0) ? (parseInt(this.page / this.numOfPages, 10) - 1) * this.numOfPages + 1 : parseInt(this.page / this.numOfPages, 10) * this.numOfPages + 1;//calculates the start page. return pageStart; } } /** * 获取当前结束页面 * @returns {number} */ this.getEndPage = function () { if (this.getTotalPage() < 2) { return 1; } else { var pageStart = (this.page % this.numOfPages === 0) ? (parseInt(this.page / this.numOfPages, 10) - 1) * this.numOfPages + 1 : parseInt(this.page / this.numOfPages, 10) * this.numOfPages + 1;//calculates the start page. var endP = (pageStart + this.numOfPages - 1) > this.getTotalPage() ? this.getTotalPage() : (pageStart + this.numOfPages - 1); console.log(pageStart + "...." + endP); return endP; } } return this; } module.exports = Page;
二、使用方法
首先需要获得记录总条数datas.totalCount
var page = new Page({ page: curpage,//当前页 pageSize: 10,//每页记录数 totalCount: datas.totalCount,//总共记录条数 numOfPages: 5,//显示页码数 startPage: 0,//开始页码 endPage: 0//结束页码 }); page.startPage = page.getStartPage(); page.endPage = page.getEndPage();
三、前端样式(使用的express框架)
<div class="col-sm-12 col-md-12 "> <% if(page.getTotalPage() > 1){ %> <div style="text-align: right;float:right;margin: 20px 0;padding: 8px 5px 4px 5px;text-decoration: none;"> 共<%= page.getTotalPage() %>页(<%= page.totalCount %>条) </div> <ul class="pagination pull-right"> <% if((parseInt(page.page) - 1) < 1){ %> <li class="disabled"><a href="#">«</a></li> <% }else{ %> <li><a href="/category/<%= condition.type %>?ipage=<%= i %>">«</a></li> <% } %> <% for(var i = page.startPage;i <= page.endPage ;i++){ %> <% if(page.page == i){ %> <li class="active"><a href="/category/<%= condition.type %>?ipage=<%= i %>"><%= i %><span class="sr-only">(current)</span></a></li> <% }else{ %> <li><a href="/category/<%= condition.type %>?ipage=<%= i %>"><%= i %><span class="sr-only">(current)</span></a></li> <% } %> <% } %> <% if( (parseInt(page.page) + 1) > page.getTotalPage()){ %> <li class="disabled"><a href="#">»</a></li> <% }else{ %> <li><a href="/category/<%= condition.type %>?ipage=<%= (parseInt(page.page) + 1) %>">»</a></li> <% } %> </ul> <% } %> </div>
最终样式:
时间: 2024-10-11 13:11:42