How to index pdf, ppt, xl files in lucene (java based or python or php any of these is fine)?

Question

此外，我想知道如何在索引时添加元数据，以便我可以提升一些参数

Answer 1

There are several frameworks for extracting text suitable for Lucene indexing from rich text files (pdf, ppt etc.)

• One of them is Apache Tika , a sub-project of Lucene.
• Apache POI is a more general document handling project inside Apache.
• There are also some commercial alternatives.

Answer 2

You can use Apache Tika . Tika is a toolkit for detecting and extracting metadata and structured text content from various documents using existing parser libraries.

Supported Document Formats

• HyperText Markup Language
• XML and derived formats
• Microsoft Office document formats
• OpenDocument Format
• Portable Document Format
• Electronic Publication Format
• Rich Text Format
• Compression and packaging formats
• Text formats
• Audio formats
• Image formats
• Video formats
• Java class files and archives
• The mbox format

The code will look like this. Reader reader = new Tika().parse(stream);

Answer 3

有关使用PDFBox和Apache Lucene将PDF文件逐页拆分为文本的java解决方案，请参阅https://github.com/WolfgangFahl/pdfindexer ，索引这些文本页面并创建链接到页面的结果html索引文件在pdf源中使用相应的open参数。

Answer 4

Lucene索引文本而不是文件 - 你需要一些其他的过程来从文件中提取文本并运行Lucene。