在JavaScript中屏幕抓取

我想构建一个客户端屏幕抓取。在JavaScript中屏幕抓取

我想允许浏览器浏览（使用框架），并让用户标记他想抓取的区域并保存在他的主板上。

这样的需求是否有一个好的JavaScript解决方案？

2012-12-08 Bubi S

你想抓取什么样的HTML内容？或屏幕截图？请明确说明。 –

如果您正在抓取的内容不在您的域中，则无法使用JavaScript进行触摸。即使在''中也没有。 – <span class="text-secondary"> <small> <a rel="noopener" target="_blank" href="https://stackoverflow.com/users/464744/">Blender</a></span> <span></span> </small> </span> </p> </div> </div> </div> <div itemprop="comment" class="post-comment"> <div class="row"> <div class="col-lg-1"><span class="text-secondary">+0</span></div> <div class="col-lg-11"> <p class="commenttext">以编程方式截图，向他们展示图像，并让他们选择在哪里裁剪？ – <span class="text-secondary"> <small> <a rel="noopener" target="_blank" href="https://stackoverflow.com/users/249538/">goat</a></span> <span></span> </small> </span> </p> </div> </div> </div> </div> </div> </article> </div> <div class="answer-title"> <span class="text-logo margin-top-sm">A</span> <h2 class="title h4">回答</h2> </div> <div class="item-description text-md markdown-body margin-bottom-40 voidso"> <article class="board-top-1 padding-top-10"> <div class="post-col vote-info"> <span class="count">2<i class="fa fa-thumbs-up"></i></span> <i class="fa fa-check fa-2x"></i> </div> <div class="post-offset"> <div class="answer fmt"> <p>您可以使用Node.js进行网页抓取。</p> <p>这是一个<a href="http://net.tutsplus.com/tutorials/javascript-ajax/web-scraping-with-node-js/" rel="nofollow">tutorial</a>，您可以在这里学习如何使用它。</p> </div> <div class="post-info"> <div class="post-meta row"> <p class="text-secondary col-lg-6"> <span class="source"> <a rel="noopener" target="_blank" href="https://stackoverflow.com/q/13775382">来源</a> </span> </p> <p class="text-secondary col-lg-6"> <span class="float-right date"> <span>2012-12-08 07:06:07</span> </p> <p class="col-12"></p> <p class="col-12"></p></div> </div>  <div class="comments"> <div itemprop="comment" class="post-comment"> <div class="row"> <div class="col-lg-1"><span class="text-secondary">+0</span></div> <div class="col-lg-11"> <p class="commenttext">否定评价者照顾请评论？ – <span class="text-secondary"> <small> <span></span> </small> </span> </p> </div> </div> </div> <div itemprop="comment" class="post-comment"> <div class="row"> <div class="col-lg-1"><span class="text-secondary">+0</span></div> <div class="col-lg-11"> <p class="commenttext">但是，那是服务器端，我该如何使用它来呈现用户的一种方式来取消他的部分视图？ – <span class="text-secondary"> <small> <span></span> </small> </span> </p> </div> </div> </div> </div> </div> </article> <div> <script async src="https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js"></script> <ins class="adsbygoogle" style="display:block" data-ad-client="ca-pub-6208739752673518" data-ad-slot="1038284119" data-ad-format="auto" data-full-width-responsive="true"></ins> <script> (adsbygoogle = window.adsbygoogle || []).push({}); </script> </div> <article class="board-top-1 padding-top-10"> <div class="post-col vote-info"> <span class="count">1<i class="fa fa-thumbs-up"></i></span> </div> <div class="post-offset"> <div class="answer fmt"> <p>如果您想截取当前页面并在HTML画布上绘制它，则可以使用<a href="http://html2canvas.hertzen.com/" rel="nofollow">HTMLToCanvas</a>。但这不适用于外部网站：它只能截取当前加载的页面。</p> </div> <div class="post-info"> <div class="post-meta row"> <p class="text-secondary col-lg-6"> <span class="source"> <a rel="noopener" target="_blank" href="https://stackoverflow.com/q/15885177">来源</a> </span> </p> <p class="text-secondary col-lg-6"> <span class="float-right date"> <span>2013-04-08 17:21:03</span> </p> <p class="col-12"></p> <p class="col-12"></p></div> </div> </div> </article> </div> <div class="clearfix"> </div> <div class="relative-box"> <div class="relative">相关问题</div> <ul class="relative_list"> <li> 1. <a href="http://www.uwenku.com/question/p-xpjyooqd-nh.html" target="_blank" title="屏幕抓取在PHP中的JavaScript"> 屏幕抓取在PHP中的JavaScript </a> </li> <li> 2. <a href="http://www.uwenku.com/question/p-qthdmatr-bv.html" target="_blank" title="PHP（屏幕抓取）"> PHP（屏幕抓取） </a> </li> <li> 3. <a href="http://www.uwenku.com/question/p-cwhnpwgv-ms.html" target="_blank" title="屏幕抓取Asp.net"> 屏幕抓取Asp.net </a> </li> <li> 4. <a href="http://www.uwenku.com/question/p-ooaprrzw-sh.html" 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