在此页

• 句法
• 范例
• 规范
• 浏览器兼容性
• 另请参阅
• 相关话题

XMLHttpRequest.abort() method aborts the request if it has already been sent. When a request is aborted, its readyState is changed to XMLHttpRequest.UNSENT (0) and the request's status code is set to 0.

句法

XMLHttpRequest.abort()
					

参数

None.

返回值

undefined

范例

This example begins loading content from the MDN home page, then due to some condition, aborts the transfer by calling abort() .

var xhr = new XMLHttpRequest(),
    method = "GET",
    url = "https://developer.mozilla.org/";
xhr.open(method, url, true);
xhr.send();
if (OH_NOES_WE_NEED_TO_CANCEL_RIGHT_NOW_OR_ELSE) {
  xhr.abort();
}
					

规范

规范	状态	注释
XMLHttpRequest	实时标准	WHATWG (Web 超文本应用程序技术工作组) 实时标准

浏览器兼容性

The compatibility table in 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	Chrome 18	Edge 12	Firefox Yes	IE 5	Opera Yes	Safari 1.2	WebView Android Yes	Chrome Android Yes	Firefox Android Yes	Opera Android Yes	Safari iOS Yes	Samsung Internet Android Yes

图例

完整支持

完整支持

另请参阅

• 使用 XMLHttpRequest

元数据

• 最后修改： 2019 年 3 月 23 日

相关话题

1. XMLHttpRequest
2. 构造函数

   1. XMLHttpRequest()
3. 特性

   1. channel
   2. mozAnon
   3. mozBackgroundRequest
   4. mozResponseArrayBuffer
   5. mozSystem
   6. multipart
   7. onreadystatechange
   8. readyState
   9. response
   10. responseText
   11. responseType
   12. responseURL
   13. responseXML
   14. status
   15. statusText
   16. timeout
   17. upload
   18. withCredentials
4. 方法

   1. abort()
   2. getAllResponseHeaders()
   3. getResponseHeader()
   4. open()
   5. openRequest()
   6. overrideMimeType()
   7. send()
   8. sendAsBinary()
   9. setRequestHeader()
5. 事件

   1. onreadystatechange
   2. abort
   3. error
   4. load
   5. loadend
   6. loadstart
   7. progress
   8. timeout
6. 继承：

   1. XMLHttpRequestEventTarget
   2. EventTarget
7. XMLHttpRequest 相关页面

   1. FormData
   2. XMLHttpRequestEventTarget
   3. XMLHttpRequestUpload