文档内容抽取工具集合，Apache Tika 1.8 发布

Tika是一个内容抽取的工具集合(a toolkit for text extracting)。它集成了POI, Pdfbox 并且为文本抽取工作提供了一个统一的界面。其次，Tika也提供了便利的扩展API，用来丰富其对第三方文件格式的支持。

Tika的API十分便捷，核心是Parser interface，其中定义了一个parse方法：
public void parse(InputStream stream, ContentHandler handler, Metadata metadata)
用stream参数传递需要解析的文件流， 文本内容会被传入handler，而元数据会更新至metadata。

可以使用Tika的ParserUtils工具来根据文件的mime-type来得到一个适当的Parser来进行解析工作。或者Tika还提供了一个AutoDetectParser根据不同的二进制文件的特殊格式 (比如说Magic Code)，来寻找适合的Parser。

• Fix null pointer when processing ODT footer styles (TIKA-1600).

• Upgrade to com.drewnoakes' metadata-extractor to 2.0 and
      add parser for webp metadata (TIKA-1594).

• Duration extracted from MP3s with no ID3 tags (TIKA-1589).

• Upgraded to PDFBox 1.8.9 (TIKA-1575).

• Tika now supports the IsaTab data standard for bioinformatics
      both in terms of MIME identification and in terms of parsing
      (TIKA-1580).

• Tika server can now enable CORS requests with the command line
      "--cors" or "-C" option (TIKA-1586).

• Update jhighlight dependency to avoid using LGPL license. Thank
      @kkrugler for his great contribution (TIKA-1581).

• Updated HDF and NetCDF parsers to output file version in
      metadata (TIKA-1578 and TIKA-1579).

• Upgraded to POI 3.12-beta1 (TIKA-1531).

• Added tika-batch module for directory to directory batch
      processing.  This is a new, experimental capability, and the API will
      likely change in future releases (TIKA-1330).

• Translator.translate() Exceptions are now restricted to
      TikaException and IOException (TIKA-1416).

• Tika now supports MIME detection for Microsoft Extended
      Makefiles (EMF) (TIKA-1554).

• Tika has improved delineation in XML and HTML MIME detection
      (TIKA-1365).

• Upgraded the Drew Noakes metadata-extractor to version 2.7.2
      (TIKA-1576).

• Added basic style support for ODF documents, contributed by
      Axel D枚rfler (TIKA-1063).

• Move Tika server resources and writers to separate
      org.apache.tika.server.resource and writer packages (TIKA-1564).

• Upgrade UCAR dependencies to 4.5.5 (TIKA-1571).

• Fix Paths in Tika server welcome page (TIKA-1567).

• Fixed infinite recursion while parsing some PDFs (TIKA-1038).

• XHTMLContentHandler now properly passes along body attributes,
      contributed by Markus Jelsma (TIKA-995).

• TikaCLI option --compare-file-magic to report mime types known to
      the file(1) tool but not known / fully known to Tika.

• MediaTypeRegistry support for returning known child types.

• Support for excluding (blacklisting) certain Parsers from being
      used by DefaultParser via the Tika Config file, using the new
      parser-exclude tag (TIKA-1558).

详细信息请查看发行页面。

此版本现已提供下载：

http://www.apache.org/dyn/closer.cgi/tika/apache-tika-1.8-src.zip