执行JavaScript为服务器端缓存渲染HTML [英] Executing JavaScript to Render HTML for Server-Side Caching

问题描述

有很多网站提供的小部件，这些小部件通过 DOM 操作或 document.write（）生成HTML。我不希望通过额外的请求来减慢浏览器的运行速度，并且信任另一个提供者快速，可靠并且不会更改窗口小部件输出，我希望执行* JavaScript来生成呈现的HTML，然后保存该HTML源代码。 p>

我看过的东西似乎不可行或太难：

1. 链接浏览器（ not lynx！）


2. 无头无际地使用Xvfb加Firefox和Greasemonkey（ ）


3. 全部Java浏览器工具包眼镜蛇（最好的选择！）

有什么想法？

**显然你不能完全执行JavaScript，因为它不一定有退出路径，但你明白了。

解决方案

维基百科的 服务器端JavaScript文章列出了许多实现，其中许多实现基于Mozilla的 Rhino JavaScript到Java转换器或其表兄 SpiderMonkey 引擎可以在Firefox和其他基于Gecko的浏览器中找到）。特别是，像 mod_js 这样简单的Apache可能适合您的需求。

There are lots of widgets provided by sites that are effectively bits of JavaScript that generate HTML through DOM manipulation or document.write(). Rather than slow the browser down even more with additional requests and trust yet another provider to be fast, reliable and not change the widget output, I want to execute* the JavaScript to generate the rendered HTML, and then save that HTML source.­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­

Things I've looked into that seem unworkable or way too difficult:

1. The Links Browser (not lynx!)
2. Headless use of Xvfb plus Firefox plus Greasemonkey (yikes)
3. The all-Java browser toolkit Cobra (the best bet!)

Any ideas?

** Obviously you can't really execute the JavaScript completely, as it doesn't necessarily have an exit path, but you get the idea.

解决方案

Wikipedia's "Server-side JavaScript" article lists numerous implementations, many of which are based on Mozilla's Rhino JavaScript-to-Java converter, or its cousin SpiderMonkey (the same engine as found in Firefox and other Gecko-based browsers). In particular, something simple like mod_js for Apache may suit your needs.

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