<!DOCTYPE HTML> <html> <head> <meta charset="utf-8"/> <title>HTML5本地存储之本地数据库篇</title> <script type="text/javascript"> //打开数据库 var db = openDatabase('contactdb','','local database demo',204800); //保存数据 function save(){ var user_name = document.getElementById("user_name").value; var mobilephone = document.getElementById("mobilephone").value; var company = document.getElementById("company").value; //创建时间 var time = new Date().getTime(); db.transaction(function(tx){ tx.executeSql('insert into contact values(?,?,?,?)',[user_name,mobilephone,company,time],onSuccess,onError); }); } //sql语句执行成功后执行的回调函数 function onSuccess(tx,rs){ alert("操作成功"); loadAll(); } //sql语句执行失败后执行的回调函数 function onError(tx,error){ alert("操作失败，失败信息："+ error.message); } //将所有存储在sqlLite数据库中的联系人全部取出来 function loadAll(){ var list = document.getElementById("list"); db.transaction(function(tx){ //如果数据表不存在，则创建数据表 tx.executeSql('create table if not exists contact(name text,phone text,company text,createtime INTEGER)',[]); //查询所有联系人记录 tx.executeSql('select * from contact',[],function(tx,rs){ if(rs.rows.length>0){ var result = "<table>"; result += "<tr><th>序号</th><th>姓名</th><th>手机</th><th>公司</th><th>添加时间</th><th>操作</th></tr>"; for(var i=0;i<rs.rows.length;i++){ var row = rs.rows.item(i); //转换时间，并格式化输出 var time = new Date(); time.setTime(row.createtime); var timeStr = time.format("yyyy-MM-dd hh:mm:ss"); //拼装一个表格的行节点 result += "<tr><td>"+(i+1)+"</td><td>"+row.name+"</td><td>"+row.phone+"</td><td>"+row.company+"</td><td>"+timeStr+"</td><td><input type='button' value='删除' onclick='del("+row.phone+")'/></td></tr>"; } list.innerHTML = result; }else{ list.innerHTML = "目前数据为空，赶紧开始加入联系人吧"; } }); }); } //删除联系人信息 function del(phone){ db.transaction(function(tx){ //注意这里需要显示的将传入的参数phone转变为字符串类型 tx.executeSql('delete from contact where phone=?',[String(phone)],onSuccess,onError); }); } //格式化时间的format函数 Date.prototype.format = function(format) { var o = { "M+" : this.getMonth()+1, //month "d+" : this.getDate(), //day "h+" : this.getHours(), //hour "m+" : this.getMinutes(), //minute "s+" : this.getSeconds(), //second "q+" : Math.floor((this.getMonth()+3)/3), //quarter "S" : this.getMilliseconds() //millisecond } if(/(y+)/.test(format)) format=format.replace(RegExp.$1, (this.getFullYear()+"").substr(4 - RegExp.$1.length)); for(var k in o)if(new RegExp("("+ k +")").test(format)) format = format.replace(RegExp.$1, RegExp.$1.length==1 ? o[k] : ("00"+ o[k]).substr((""+ o[k]).length)); return format; } </script> <style> .addDiv{ border: 2px dashed #ccc; width:400px; text-align:center; } th { font: bold 11px "Trebuchet MS", Verdana, Arial, Helvetica, sans-serif; color: #4f6b72; border-right: 1px solid #C1DAD7; border-bottom: 1px solid #C1DAD7; border-top: 1px solid #C1DAD7; letter-spacing: 2px; text-transform: uppercase; text-align: left; padding: 6px 6px 6px 12px; } td { border-right: 1px solid #C9DAD7; border-bottom: 1px solid #C9DAD7; background: #fff; padding: 6px 6px 6px 12px; color: #4f6b72; } </style> </head> <body onload="loadAll()"> <div class="addDiv"> <label for="user_name">姓名：</label> <input type="text" id="user_name" name="user_name" class="text"/> <br/> <label for="mobilephone">手机：</label> <input type="text" id="mobilephone" name="mobilephone"/> <br/> <label for="mobilephone">公司：</label> <input type="text" id="company" name="company"/> <br/> <input type="button" onclick="save()" value="新增记录"/> </div> <br/> <div id="list"> </div> </body> </html>