在此页

• 范例
• 浏览器兼容性
• 另请参阅
• 相关话题

success event is fired when an IDBRequest succeeds.

冒泡	No
可取消	No
接口	事件
事件处理程序特性	onsuccess

范例

This example tries to open a database and listens for the success event using addEventListener() :

// Open the database
const openRequest = window.indexedDB.open('toDoList', 4);
openRequest.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 });
};
openRequest.addEventListener('success', (event) => {
  console.log('Database opened successfully!');
});
					

The same example, but using the onsuccess 事件处理程序特性：

// Open the database
const openRequest = window.indexedDB.open('toDoList', 4);
openRequest.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 });
};
openRequest.onsuccess = (event) => {
  console.log('Database opened successfully!');
};
					

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
success 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
• onsuccess event handler property

元数据

• 最后修改： Mar 18, 2019

相关话题

1. IndexedDB API
2. IDBRequest
3. 特性

   1. error
   2. onerror
   3. onsuccess
   4. readyState
   5. result
   6. source
   7. transaction
4. 事件

   1. error
5. 继承：

   1. EventTarget
6. 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. IDBTransaction
   18. IDBTransactionSync
   19. IDBVersionChangeEvent
   20. IDBVersionChangeRequest