如何获取包含其他网站的<iframe>的内容？ - How do I get the contents of an <iframe> containing a different site? - 开发者知识库

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如何获取包含其他网站的的内容？</a></h3><h4><span class="text-success">[英]</span>How do I get the contents of an <iframe> containing a different site?</h4> </center> <input type="hidden" name="voteNum" value="100"/> <div class="postinfo"> 本文翻译自 <i class="icon-user"></i> <span>cometta</span> <i class="icon-globe"></i> <a href="https://www.itdaan.com/go/aHR0cHM6Ly9zdGFja292ZXJmbG93LmNvbS9xdWVzdGlvbnMvMTAzNjE0NC9ob3ctZG8taS1nZXQtdGhlLWNvbnRlbnRzLW9mLWFuLWlmcmFtZS1jb250YWluaW5nLWEtZGlmZmVyZW50LXNpdGU=" target="_blank">查看原文</a> <i class="icon-time"></i> <span>2009-06-24</span> <i class="icon-eye-open"></i> <span>547 </span> <i class="icon-tag"></i>  <span><a href="https://www.itdaan.com/tag/html.html" target="_blank">html</a>/</span> <span><a href="https://www.itdaan.com/tag/iframe.html" target="_blank">iframe</a>/</span> <span><a href="https://www.itdaan.com/tag/javascript.html" target="_blank">javascript</a>/</span> <span><a href="https://www.itdaan.com/tag/jquery.html" target="_blank">jquery</a></span>      <span id="votes"></span>  <span id="hint"></span>     </div> <hr/> <div class="ad_title_down"> <input type="hidden" name="recommend_title" value="" id="recommend_title"/> <input type="hidden" name="recommend_url" value="" id="recommend_url"/>  <ins class="adsbygoogle" style="display:block" data-ad-client="ca-pub-4353345653789615" data-ad-slot="5202993478" data-ad-format="auto" data-full-width-responsive="true"></ins> <script> (adsbygoogle = window.adsbygoogle || []).push({}); </script> </div> <div class="media-body" id="content_div"> <p>I'm able to get the 'src' attribute of an using <code>.src</code>. But I cannot get the contents that are located in another domain. Is this a browser security problem?</p> <p><i class="icon-star"></i>我能够获得使用.src的'src'属性。但我无法获取位于另一个域中的内容。这是浏览器安全问题吗?</p> <pre><code>jQuery(document).ready(function() { var elementTest = $("iframe:first").get(0); alert(elementTest.src); // ok alert(elementTest.innerHTML); // not ok }); </code></pre> <ins class="adsbygoogle" style="display:block; text-align:center;" data-ad-layout="in-article" data-ad-format="fluid" data-ad-client="ca-pub-4353345653789615" data-ad-slot="8840342077"></ins> <script> (adsbygoogle = window.adsbygoogle || []).push({});</script> <h2>3 个解决方案</h2> <div class="media-body" style="padding:3px;"> <h3 class="media-heading">#1</h3> <hr/> <div class="media"> <p></p> <p>Yes, this <strong><em>restriction</em></strong> against inspecting content and executing code within that external domain is known as the <a href="https://www.itdaan.com/link/aHR0cDovL2VuLndpa2lwZWRpYS5vcmcvd2lraS9TYW1lX29yaWdpbl9wb2xpY3k=" rel="nofollow noopener" target="_blank">same-origin policy</a>.</p> <p><i class="icon-star"></i>是的,这种对检查内容和在该外部域中执行代码的限制称为同源策略。</p> </div> </div> <div class="media-body" style="padding:3px;"> <h3 class="media-heading">#2</h3> <hr/> <div class="media"> <p></p> <p>What you are trying (in a sense) is cross-domain communication. This won't work in the normal way you've tried (due to the same-origin policy as noted by altCognito), but there are some solutions if you have control over the other server. Check out this article:</p> <p><i class="icon-star"></i>你在尝试(在某种意义上)是跨域通信。这不会以您尝试的正常方式工作(由于altCognito指出的同源策略),但如果您可以控制其他服务器,则有一些解决方案。看看这篇文章:</p> <p><a href="https://www.itdaan.com/link/aHR0cDovL21zZG4ubWljcm9zb2Z0LmNvbS9lbi11cy9saWJyYXJ5L2JiNzM1MzA1LmFzcHg=" rel="nofollow noopener" target="_blank">http://msdn.microsoft.com/en-us/library/bb735305.aspx</a></p> </div> </div> <div class="media-body" style="padding:3px;"> <h3 class="media-heading">#3</h3> <hr/> <div class="media"> <p></p> <p>The property you are looking for is contentWindow.</p> <p><i class="icon-star"></i>您要查找的属性是contentWindow。</p> <p>Try this code:</p> <p><i class="icon-star"></i>试试这段代码:</p> <pre><code>alert(elementTest.contentWindow.document.innerHTML); </code></pre> <p>It is analogous to the current window object, but for the iframe. so you can also do this:</p> <p><i class="icon-star"></i>它类似于当前窗口对象,但对于iframe。所以你也可以这样做:</p> <pre><code>alert(elementTest.contentWindow.location.href); </code></pre> <p><strong>Edit</strong>: Ah - I missed the fact that you have a page from another domain in the iframe. THis method won't work for you, because of the built-in browser restrictions for one domain (your parent window) and accessing information in another domain (your iframe).</p> <p><i class="icon-star"></i>编辑:啊 - 我错过了你有一个来自iframe中另一个域的页面的事实。这种方法不适合您,因为一个域(您的父窗口)的内置浏览器限制和访问另一个域(您的iframe)中的信息。</p> </div> </div> </div> <img alt="" src="https://www.itdaan.com/img/dash.png"/> <ins class="adsbygoogle" style="display:block" data-ad-format="autorelaxed" data-ad-client="ca-pub-4353345653789615" data-ad-slot="5874745610"></ins> <script> (adsbygoogle = window.adsbygoogle || []).push({}); </script> </div> <br/> <div class="alert alert-block"> <button type="button" class="close" data-dismiss="alert">×</button> <h4>注意！</h4> <p>本站翻译的文章，版权归属于本站，未经许可禁止转摘，转摘请注明本文地址：<a href="https://www.itdaan.com/blog/2009/06/24/f3e09653cb5fe58591c8d363f9e07257.html">https://www.itdaan.com/blog/2009/06/24/f3e09653cb5fe58591c8d363f9e07257.html</a>。</p> </div> <br/><br/> </div> <div class="timeout_show"> <input type="hidden" name="related_url" value="https://www.itdaan.com/blog/2008/09/04/d72006a869c10edac8ceae1f7423623e.html" id="related_url"/> <script type="text/javascript"> timeout_show(); 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