我正在尝试将数据存储到IndexedDB中,但是遇到问题。尝试添加格式正确的JSON数据时,出现错误:
DataError: Data provided to an operation does not meet requirements.
以下是我的IndexedDB代码:
function dbInit(key, value) {
// Open (or create) the database
var open = indexedDB.open("MyDatabase", 6);
// Create the schema
open.onupgradeneeded = function() {
var db = open.result;
var store = db.createObjectStore("MyObjectStore", {keyPath: "id", autoIncrement: true});
var index = store.createIndex("types", "types");
};
open.onsuccess = function() {
// Start a new transaction
var db = open.result;
var tx = db.transaction("MyObjectStore", "readwrite");
var store = tx.objectStore("MyObjectStore");
var index = store.index("types");
// Add some data
store.put(value);
// Close the db when the transaction is done
tx.oncomplete = function() {
db.close();
};
}
}
在浏览了一些类似的问题之后,我注意到如果未指定keyPath,则会出现此问题,但是在下面,我将keyPath指定为“id”和autoIncrement:true,因此应将其用作keyPath。
以下是我要添加的JSON数据-传递到“值”参数下的函数中。 (修改后的数据虽然很敏感,但是采用这种格式。)
[{
"code": 1,
"content": "XXX.html",
"scheme": 4,
"type": "XXX"
}, {
"code": 2,
"content": "XXX.html",
"scheme": 6,
"type": "XXX"
}, {
"code": 3,
"content": "XXX.html",
"scheme": 1,
"type": "XXX"
}, {
"code": 4,
"content": "XXX.html",
"scheme": 4,
"type": "XXX"
}]
最佳答案
您是以字符串形式传递值还是将其解析为数组?
如果是字符串,则问题在于无法将生成的键(c / o autoIncrement: true
)分配给值(c / o keyPath: "id"
),因为您无法向字符串添加属性。
更简单的复制:
indexedDB.open('k').onupgradeneeded = e => {
const db = e.target.result;
const s = db.createObjectStore('s', {keyPath: 'id', autoIncrement: true});
s.put('string');
};
关于javascript - IndexedDB-提供给操作的数据不符合要求,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/46486963/