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websql使用实例

2016-06-24 10:05 399 查看

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>websql应用</title>
<script src="http://apps.bdimg.com/libs/jquery/2.1.1/jquery.min.js" type="text/javascript"></script>
</head>
<body>
<input type="text" id="title" />
<textarea name="context" id="context" cols="20" rows="8"></textarea>
<input type="button" value="保存" onclick="save()" />
<input type="button" value="查看" onclick="chakan()" />
<ol id="chakan">
123
</ol>
</body>
<script>
var dbsize=2*1024*1024;
db=openDatabase("todo","","",dbsize);
db.transaction(function(tx){
tx.executeSql("CREATE TABLE IF NOT EXISTS notes (id integer PRIMARY KEY,title char(50),inputMemo text,last_date datetime)");
}
);
function save(){
var title=$("#title").val();
var inputMemo=$("#context").val();
db.transaction(function(tx){
tx.executeSql("INSERT INTO notes (title,inputMemo,last_date) values(?,?,datetime('now','localtime'))",[title,inputMemo]);
});
}
function chakan(){
$("ol").empty();
var note="";
db.transaction(function(tx){
tx.executeSql("SELECT id,title,inputMemo,last_date FROM notes",[],function(tx,result){
if(result.rows.length>0){
for (var i = 0; i <result.rows.length; i++) {
var item=result.rows.item(i);
//console.log(item["inputMemo"]);
note+="<li>"+"<h3>"+item["title"]+"</h3><p>"+item["inputMemo"]+"</p></li>";
}
$("#chakan").append(note);
}}
);
});
}
</script>
</html>

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