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• 范例
• 浏览器兼容性
• 另请参阅
• 相关话题

abort event is fired when an IndexedDB transaction is aborted.

冒泡	Yes
可取消	No
接口	事件
事件处理程序特性	onabort

This can happen for any of the following reasons:

• bad requests, (for example, trying to add the same key twice, or put the same index key when the key has a uniqueness constraint),
• an explicit abort() call
• an uncaught exception in the request's success/error handler,
• an I/O error (an actual failure to write to disk, for example disk detached, or other OS/hardware failure)
• quota exceeded.

范例

This example opens a database (creating the database if it does not exist), then opens a transaction, adds a listener to the abort event, then aborts the transaction to trigger the event.

// Open the database
const DBOpenRequest = window.indexedDB.open('toDoList', 4);
DBOpenRequest.onupgradeneeded = event => {
  const db = event.target.result;
  db.onerror = () => {
    console.log('Error creating database');
  };
  // 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 });
};
DBOpenRequest.onsuccess = event => {
  const db = DBOpenRequest.result;
  // open a read/write db transaction, ready for adding the data
  const transaction = db.transaction(['toDoList'], 'readwrite');
  // add a listener for `abort`
  transaction.addEventListener('abort', () => {
    console.log('Transaction was aborted');
  });
  // abort the transaction
  transaction.abort();
};
					

The same example, but assigning the event handler to the onabort 特性：

// Open the database
const DBOpenRequest = window.indexedDB.open('toDoList', 4);
DBOpenRequest.onupgradeneeded = event => {
  const db = event.target.result;
  db.onerror = () => {
    console.log('Error creating database');
  };
  // 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 });
};
DBOpenRequest.onsuccess = event => {
  const db = DBOpenRequest.result;
  // open a read/write db transaction, ready for adding the data
  const transaction = db.transaction(['toDoList'], 'readwrite');
  // add a listener for `abort`
  transaction.onabort = (event) => {
    console.log('Transaction was aborted');
  };
  // abort the transaction
  transaction.abort();
};
					

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
abort event	Chrome 24 24 23 Prefixed Prefixed Implemented with the vendor prefix: webkit	Edge 12	Firefox 16 16 不支持 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 Yes	Firefox Android 22	Opera Android 14	Safari iOS 8	Samsung Internet Android Yes

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

• 使用 IndexedDB
• onabort event handler property

元数据

• 最后修改： Mar 18, 2019

相关话题

1. IndexedDB API
2. IDBTransaction
3. 特性

   1. db
   2. error
   3. mode
   4. objectStoreNames
   5. onabort
   6. oncomplete
   7. onerror
4. 方法

   1. abort()
   2. commit()
   3. objectStore()
5. 事件

   1. abort
   2. complete
6. 继承：

   1. EventTarget
7. IndexedDB 相关页面

   1. IDBCursor
   2. IDBCursorSync
   3. IDBCursorWithValue
   4. IDBDatabase
   5. IDBDatabaseException
   6. IDBDatabaseSync
   7. IDBEnvironment
   8. IDBEnvironmentSync
   9. IDBFactory
   10. IDBFactorySync
   11. IDBIndex
   12. IDBIndexSync
   13. IDBKeyRange
   14. IDBObjectStore
   15. IDBObjectStoreSync
   16. IDBOpenDBRequest
   17. IDBRequest
   18. IDBTransactionSync
   19. IDBVersionChangeEvent
   20. IDBVersionChangeRequest