代码
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<!DOCTYPE html>
<html>
<head lang="en">
<meta charset="UTF-8">
<title>离线记事本</title>
<meta name="viewport" content="width=device-width,initial-scale=1">
<link rel="stylesheet" href="http://code.jquery.com/mobile/1.4.5/jquery.mobile-1.4.5.min.css" />
<script src="http://code.jquery.com/jquery-1.11.1.min.js"></script>
<script src="http://code.jquery.com/mobile/1.4.5/jquery.mobile-1.4.5.min.js"></script><!-- 引用jQuery插件 -->
</head>
<script>
var datatable = null;
var db = openDatabase("note", "", "notebook", 1024 * 100);
//初始化函数方法
function init() {
datatable = document.getElementById("datatable");
showAllData();
}
function removeAllData() {
for(var i = datatable.childNodes.length - 1; i >= 0; i--) {
datatable.removeChild(datatable.childNodes[i]);
}
var tr = document.createElement("tr");
var th1 = document.createElement("th");
var th2 = document.createElement("th");
var th3 = document.createElement("th");
th1.innerHTML = "标题";
th2.innerHTML = "内容";
th3.innerHTML = "时间";
tr.appendChild(th1);
tr.appendChild(th2);
tr.appendChild(th3);
datatable.appendChild(tr);
}
//显示数据库中的数据
function showData(row) {
var tr = document.createElement("tr");
var td1 = document.createElement("td");
td1.innerHTML = row.title;
var td2 = document.createElement("td");
td2.innerHTML = row.content;
var td3 = document.createElement("td");
var t = new Date();
t.setTime(row.time);
td3.innerHTML = t.toLocaleDateString() + " " + t.toLocaleTimeString();
tr.appendChild(td1);
tr.appendChild(td2);
tr.appendChild(td3);
datatable.appendChild(tr);
}
//显示所有的数据
function showAllData() {
db.transaction(function(tx) {
tx.executeSql("CREATE TABLE IF NOT EXISTS item(title TEXT,content TEXT,time INTEGER)", []);
tx.executeSql("SELECT * FROM item", [], function(tx, rs) {
removeAllData();
for(var i = 0; i < rs.rows.length; i++) {
showData(rs.rows.item(i))
}
})
})
}
//添加一条记事本数据
function addData(title, content, time) {
db.transaction(function(tx) {
tx.executeSql("INSERT INTO item VALUES (?,?,?)", [title, content, time], function(tx, rs) {
alert("保存成功！");
},
function(tx, error) {
alert(error.source + "::" + error.message);
}
)
})
}
//点击保存按钮
function saveData() {
var title = document.getElementById("name").value;
var content = document.getElementById("memo").value;
var time = new Date().getTime();
addData(title, content, time);
showAllData();
}
</script>
<body onload="init()">
<div data-role="page" id="pageone">
<div data-role="header" data-position="fixed">
<h1>离线记事本</h1>
</div>
<div data-role="main" class="ui-content">
<p align="center">记事</p>
<table data-role="table" class="ui-responsive">
<thead>
<tr>
<th>标题：</th>
<th>内容：</th>
</tr>
</thead>
<tbody>
<tr>
<td><input type="text" id="name"></td>
<td><input type="text" id="memo"></td>
</tr>
</tbody>
</table>
<button type="submit" onclick="saveData()">保存</button>
<table data-role="table" data-mode="" class="ui-responsive" id="datatable">
</table>
</div>
</div>
</body>
</html>
运行结果