关于Web SQL的一段代码，错在哪里？请大家帮忙看看！谢谢谢

<!DOCTYPE HTML>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta charset="utf-8">
<title>Web Storage</title>
<script src="js/demo1.js" type="text/javascript"></script>
</head>

<body>
<h1>使用数据库实现Web留言本</h1>
<table>
       <tr><td>姓名:</td><td><input type="text" id="name"></td></tr>
       <tr><td>留言:</td><td><input type="text" id="memo"></td></tr>
       <tr>
           <td></td>
           <td><input type="button" value="保存" onClick="saveData()"></td>
       </tr>
</table>
<hr>
<table id="datatable" border="1"></table>
<p id="msg"></p>
</body>
</body>
</html>

// JavaScript Document
var datatable = null;
var db = openDatabase('MyData','','My Database',102400);
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 = "姓名";
th2.innerHTML = "留言";
th3.innerHTML = "时间";
tr.appendChild(th1);
tr.appendChild(th2);
tr.appendChild(th3);
datatable.appendChild(tr);
}
function showData(row){
var tr = document.createElement('tr');
var td1 = document.createElement('td');
td1.innerHTML = row.name;
var td2 = document.createElement('td');
td2.innerHTML = row.message;
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);
}
function showAllData(){
db.transaction(function(tx){
  tx.executeSql('CREATE TABLE IF NOT EXISTS MSgData(name TEXT, maeeage TEXT,time TEXT)',[]);
  tx.executeSql('SELECT * FROM MsgData',[],function(tx,rs){
   removeAllDate();
   for(var i = 0; i< rs.rows.length;i++){
    showData(rs.rows.item(i));
    }
    });
   });
}
function addData(name,message,time){
db.transaction(function(tx){
  tx.executeSql('INSERT INTO MsgData VALUES(?, ?, ?)',[name,message,time],function(tx,rs){
   alert("成功保存数据！");},
   function(tx,error){
    alert(error.source + "::" + error.message);
    });
   });
  }
function saveData(){
var name = document.getElementById('name').value;
var memo = document.getElementById('memo').value;
var time = new Date().getTime();
addDate(name,memo,time);
showAllData();
}

鸡肋2016

浏览 1261回答 1

1回答

其实我真的不是东北人

Web SQL 没人用了，不再支持了。学他有什么意义。学了也白学。像IE,FF，都不实现了。现在的目标是 indexDB

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