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diff --git a/files/zh-cn/web/api/xmlhttprequest/error_event/index.html b/files/zh-cn/web/api/xmlhttprequest/error_event/index.html new file mode 100644 index 0000000000..e92ec4bb65 --- /dev/null +++ b/files/zh-cn/web/api/xmlhttprequest/error_event/index.html @@ -0,0 +1,139 @@ +--- +title: 'XMLHttpRequest: error 事件' +slug: Web/API/XMLHttpRequest/error_event +translation_of: Web/API/XMLHttpRequest/error_event +--- +<div>{{APIRef}}</div> + +<p><span>当请求遇到错误时，将触发</span><code>error</code> 事件。</p> + +<table class="properties"> + <tbody> + <tr> + <th scope="row">可冒泡</th> + <td>No</td> + </tr> + <tr> + <th scope="row">可取消</th> + <td>No</td> + </tr> + <tr> + <th scope="row">接口</th> + <td>{{domxref("ProgressEvent")}}</td> + </tr> + <tr> + <th scope="row">事件处理程序属性</th> + <td>{{domxref("XMLHttpRequestEventTarget/onerror", "onerror")}}</td> + </tr> + </tbody> +</table> + +<h2 id="示例">示例</h2> + +<h3 id="在线示例">在线示例</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="结果">结果</h4> + +<p>{{ EmbedLiveSample('在线示例', '100%', '150px') }}</p> + +<h2 id="规范">规范</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-error')}}</td> + <td>{{Spec2('XMLHttpRequest')}}</td> + <td> </td> + </tr> + </tbody> +</table> + +<h2 id="浏览器兼容性">浏览器兼容性</h2> + + + +<p>{{Compat("api.XMLHttpRequest.error_event")}}</p> + +<h2 id="其他">其他</h2> + +<ul> + <li>相关事件: {{domxref("XMLHttpRequest/loadstart_event", "loadstart")}}, {{domxref("XMLHttpRequest/load_event", "load")}}, {{domxref("XMLHttpRequest/progress_event", "progress")}}, {{domxref("XMLHttpRequest/loadend_event", "loadend")}}, {{domxref("XMLHttpRequest/abort_event", "abort")}}</li> + <li><a href="/en-US/docs/Web/API/XMLHttpRequest/Using_XMLHttpRequest#Monitoring_progress">监视进度</a></li> +</ul> |