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author | Peter Bengtsson <mail@peterbe.com> | 2020-12-08 14:40:17 -0500 |
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committer | Peter Bengtsson <mail@peterbe.com> | 2020-12-08 14:40:17 -0500 |
commit | 33058f2b292b3a581333bdfb21b8f671898c5060 (patch) | |
tree | 51c3e392513ec574331b2d3f85c394445ea803c6 /files/zh-cn/web/api/xmlhttprequest/abort_event/index.html | |
parent | 8b66d724f7caf0157093fb09cfec8fbd0c6ad50a (diff) | |
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diff --git a/files/zh-cn/web/api/xmlhttprequest/abort_event/index.html b/files/zh-cn/web/api/xmlhttprequest/abort_event/index.html new file mode 100644 index 0000000000..9bdad07e9d --- /dev/null +++ b/files/zh-cn/web/api/xmlhttprequest/abort_event/index.html @@ -0,0 +1,146 @@ +--- +title: 'XMLHttpRequest: abort event' +slug: Web/API/XMLHttpRequest/abort_event +tags: + - XMLHttpRequest + - abort +translation_of: Web/API/XMLHttpRequest/abort_event +--- +<div>{{APIRef}}</div> + +<div></div> + +<div>当一个请求终止时 <code>abort</code> 事件被触发,比如程序执行 {{domxref("XMLHttpRequest.abort()")}}。</div> + +<div></div> + +<table class="properties"> + <tbody> + <tr> + <th scope="row">Bubbles</th> + <td>No</td> + </tr> + <tr> + <th scope="row">Cancelable</th> + <td>No</td> + </tr> + <tr> + <th scope="row">Interface</th> + <td>{{domxref("ProgressEvent")}}</td> + </tr> + <tr> + <th scope="row">Event handler property</th> + <td>{{domxref("XMLHttpRequestEventTarget/onabort", "onabort")}}</td> + </tr> + </tbody> +</table> + +<h2 id="Examples">Examples</h2> + +<h3 id="Live_example">Live example</h3> + +<h4 id="HTML">HTML</h4> + +<pre class="brush: html"><div class="controls"> + <input class="xhr success" type="button" name="xhr" value="Click to start XHR (success)" /> + <input class="xhr error" type="button" name="xhr" value="Click to start XHR (error)" /> + <input class="xhr abort" type="button" name="xhr" value="Click to start XHR (abort)" /> +</div> + +<textarea readonly class="event-log"></textarea></pre> + +<div class="hidden"> +<h4 id="CSS">CSS</h4> + +<pre class="brush: css">.event-log { + width: 25rem; + height: 4rem; + border: 1px solid black; + margin: .5rem; + padding: .2rem; +} + +input { + width: 11rem; + margin: .5rem; +} +</pre> +</div> + +<h4 id="JS">JS</h4> + +<pre class="brush: js">const xhrButtonSuccess = document.querySelector('.xhr.success'); +const xhrButtonError = document.querySelector('.xhr.error'); +const xhrButtonAbort = document.querySelector('.xhr.abort'); +const log = document.querySelector('.event-log'); + +function handleEvent(e) { + log.textContent = log.textContent + `${e.type}: ${e.loaded} bytes transferred\n`; +} + +function addListeners(xhr) { + xhr.addEventListener('loadstart', handleEvent); + xhr.addEventListener('load', handleEvent); + xhr.addEventListener('loadend', handleEvent); + xhr.addEventListener('progress', handleEvent); + xhr.addEventListener('error', handleEvent); + xhr.addEventListener('abort', handleEvent); +} + +function runXHR(url) { + log.textContent = ''; + + const xhr = new XMLHttpRequest(); + addListeners(xhr); + xhr.open("GET", url); + xhr.send(); + return xhr; +} + +xhrButtonSuccess.addEventListener('click', () => { + runXHR('https://mdn.mozillademos.org/files/16553/DgsZYJNXcAIPwzy.jpg'); +}); + +xhrButtonError.addEventListener('click', () => { + runXHR('https://somewhere.org/i-dont-exist'); +}); + +xhrButtonAbort.addEventListener('click', () => { + runXHR('https://mdn.mozillademos.org/files/16553/DgsZYJNXcAIPwzy.jpg').abort(); +});</pre> + +<h4 id="Result">Result</h4> + +<p>{{ EmbedLiveSample('Live_example', '100%', '150px') }}</p> + +<h2 id="Specifications">Specifications</h2> + +<table class="standard-table"> + <thead> + <tr> + <th scope="col">Specification</th> + <th scope="col">Status</th> + <th scope="col">Comment</th> + </tr> + </thead> + <tbody> + <tr> + <td>{{SpecName('XMLHttpRequest', '#event-xhr-abort')}}</td> + <td>{{Spec2('XMLHttpRequest')}}</td> + <td></td> + </tr> + </tbody> +</table> + +<h2 id="Browser_compatibility">Browser compatibility</h2> + + + +<p>{{Compat("api.XMLHttpRequest.abort_event")}}</p> + +<h2 id="See_also">See also</h2> + +<ul> + <li>Related events: {{domxref("XMLHttpRequest/loadstart_event", "loadstart")}}, {{domxref("XMLHttpRequest/load_event", "load")}}, {{domxref("XMLHttpRequest/progress_event", "progress")}}, {{domxref("XMLHttpRequest/error_event", "error")}}, {{domxref("XMLHttpRequest/loadend_event", "loadend")}}</li> + <li><a href="/en-US/docs/Web/API/XMLHttpRequest/Using_XMLHttpRequest#Monitoring_progress">Monitoring progress</a></li> +</ul> |