从网站提取信息 [英] Extracting Information from websites

问题描述

不是每个网站都能很好地显示他们的数据，包括XML提要，API等。

我怎么能从网站上提取信息？例如：

  ... 
< div> 
< div> 
< span id =important-data>这里的信息< / span> 
< / div> 
< / div> 
 ... 
  

我来自使用Apache XMLBeans进行Java编程和编码的背景。有什么类似的解析HTML，当我知道结构和数据是在一个已知的标记之间？

谢谢

解决方案

有几种开源的HTML解析器用于Java。

我已经使用 JTidy ，并且祝你好运。它会给你一个HTML页面的DOM，你应该可以从那里获取你需要的标签。

Not every website exposes their data well, with XML feeds, APIs, etc

How could I go about extracting information from a website? For example:

...
<div>
  <div>
    <span id="important-data">information here</span>
  </div>
</div>
...

I come from a background of Java programming and coding with Apache XMLBeans. Is there anything similar to parse HTML, when I know the structure and the data is between a known tag?

Thanks

解决方案

There are several Open Source HTML Parsers out there for Java.

I have used JTidy in the past, and have had good luck with it. It will give you a DOM of the html page, and you should be able to grab the tags you need from there.

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