我想使用IndexedDB获取本地存储的一些数据。下面,我有我与我试图让一个简单的例子onupgradeneeded事件触发为什么在连接到indexedDB时我的onupgradeneeded回调从未被调用?
<html>
<head>
<script>
var indexedDB = window.indexedDB || window.webkitIndexedDB
||window.mozIndexedDB||window.msIndexedDB;
var request = indexedDB.open("mydb",2),
customerData=[
{ssn:"444-44-4444",name:"Bill",age:35,email:"[email protected]"},
{ssn:"555-55-5555",name:"Donna",age:32,email:"[email protected]"}
];
request.onerror = function(event){
alert("ERROR") ;
};
request.onupgradeneeded = function(event) {
alert("UPGRADE NEEDED") ;
var objectStore = db.createObjectStore("customers",{keyPath:"ssn"});
objectStore.createIndex("name","name",{unique:false});
objectStore.createIndex("email","email",{unique:true});
for(var i in customerData){
objectStore.add(customerData[i]);
}
} ;
request.onsuccess = function(e) {
alert("SUCCESS") ;
} ;
</script>
</head>
</html>
我试图改变的版本号,但无论我尝试onupgradeneeded不调用/解雇。任何建议为什么?
欢呼 卢卡
检查,我从6.x升级到10和它现在工作正常! 我测试过这个东西之前在铬17,这是行不通的(也Safari /歌剧不工作) 谢谢! – 2012-02-14 20:06:16