我是使用inxededdb的新手,我试图从商店中获取数据.存储包含数据,但由于某种原因,代码在尝试设置var tx后停止.如果我遗失任何内容,请告诉我.以下是我试图获取该书的功能：
原文链接：https://www.f2er.com/php/138320.htmlfunction getBook(){
var tx = db.transaction("book","readonly");
var store = tx.objectStore("book");
var index = store.index("by_getid");
var request = index.get("<?PHP echo $_GET['book'] ?>");
request.onsuccess = function() {
var matching = request.result;
if (matching !== undefined) {
document.getElementById("text-container").innerHTML = matching.text;
} else {
alert('no match');
report(null);
}
};
}
解决版本：
function getBook(){
var db;
var request = indexedDB.open("library",1);
request.onsuccess = function (evt) {
db = request.result;
var transaction = db.transaction(["book"]);
var objectStore = transaction.objectStore("book");
var requesttrans = objectStore.get(<?PHP echo $_GET['book'] ?>);
requesttrans.onerror = function(event) {
};
requesttrans.onsuccess = function(event) {
alert(requesttrans.result.text);
};
};
}
