onerror event handler of the IDBDatabase interface handles the error event, fired when a request returns an error and bubbles up to the connection object.

注意 : Consider using IDBOpenDBRequest.onsuccess instead (see IDBRequest.onsuccess , where it is inherited from).

注意: 此特征可用于 Web 工作者 .

句法

IDBDatabase.onerror = function(event) { ... }
						

范例

This example shows an IDBOpenDBRequest.onupgradeneeded block that creates a new object store; it also includes onerror and onabort functions to handle non-success cases.

DBOpenRequest.onupgradeneeded = function(event) {
  var db = this.result;
  db.onerror = function(event) {
    note.innerHTML += '<li>Error opening database.</li>';
  };
  db.onabort = function(event) {
    note.innerHTML += '<li>Database opening aborted!</li>';
  };
  // Create an objectStore for this database
  var objectStore = db.createObjectStore("toDoList", { keyPath: "taskTitle" });
  // define what data items the objectStore will contain
  objectStore.createIndex("hours", "hours", { unique: false });
  objectStore.createIndex("minutes", "minutes", { unique: false });
  objectStore.createIndex("day", "day", { unique: false });
  objectStore.createIndex("month", "month", { unique: false });
  objectStore.createIndex("year", "year", { unique: false });
  objectStore.createIndex("notified", "notified", { unique: false });
  note.innerHTML += '<li>Object store created.</li>';
};
						

规范

规范 状态 注释
索引数据库 API 2.0
The definition of 'onerror' in that specification.
推荐
索引数据库 API 草案
The definition of 'onerror' in that specification.
推荐

浏览器兼容性

The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request. 更新 GitHub 上的兼容性数据
桌面 移动
Chrome Edge Firefox Internet Explorer Opera Safari Android webview Chrome for Android Firefox for Android Opera for Android Safari on iOS Samsung Internet
onerror Chrome 24
24
23 — 24 Prefixed
Prefixed Implemented with the vendor prefix: webkit
Edge 12 Firefox 16
16
10 — 16 Prefixed
Prefixed Implemented with the vendor prefix: moz
IE 部分支持 10 Opera 15 Safari 7 WebView Android Yes Chrome Android 25 Firefox Android 22 Opera Android 14 Safari iOS 8 Samsung Internet Android 1.5

图例

完整支持

完整支持

部分支持

部分支持

要求使用供应商前缀或不同名称。

要求使用供应商前缀或不同名称。

另请参阅

元数据

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