jsoup 1.8.3 发布，此版本主要改进有：解析大型 HTML 文件的一些性能提升；抓取 XML 文档时，自动切换到 XML 解析器；重要 bug 修复。

更新内容：

改进

• Performance improvement on parsing larger HTML pages. On Android KitKat, around 1.7x times faster.

• On Android Lollipop, ~ 1.3x faster. Improvements largely from re-ordering the HtmlTreeBuilder methods based on analysis of various websites; also from further memory reduction for nodes with no children, and other tweaks.
  

• When fetching XML URLs, automatically switch to the XML parser instead of the HTML parser.
  

• Improved support for boolean attributes in HTML5.
  

• When serialising XML, ensure that '<' characters in attributes are escaped, per spec. Not required in HTML.

Bug 修复

• Fixed an issue in Element.elementSiblingIndex() (and related methods) where sibling elements with the same content would incorrectly have the same sibling index.
  

• Fixed an issue where unexpected elements in a badly nested table could be moved to the wrong location in the document.
  

• Fixed an issue where a table nested within a TH cell would parse to an incorrect tree.
  

• When serializing a document using the XHTML encoding entities, if the character set did not support &nbsp; chars (such as Shift_JIS), the character would be skipped. For visibility, will now always output &xa0; (the hex code for non-breaking-space); when using XHTML encoding entities (as &nbsp; is not defined), regardless of the output character set.
  

• Fixed an issue when resolving URLs, where if the absolute URL had no path, the relative URL was not normalized correctly.
  

• Fixed an issue where connections that were redirected to a relative URL did not have the same normalization rules as a URL read from Nodes.absUrl(String).

本站使用 jsoup 来解析 HTML。

jsoup 是一款 Java 的HTML 解析器，可直接解析某个URL地址、HTML文本内容。它提供了一套非常省力的API，可通过DOM，CSS以及类似于JQuery的操作方法来取出和操作数据。

jsoup的主要功能如下：

1. 从一个URL，文件或字符串中解析HTML；

2. 使用DOM或CSS选择器来查找、取出数据；

3. 可操作HTML元素、属性、文本；

jsoup是基于MIT协议发布的，可放心使用于商业项目。