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This article will explain in detail what is the use of Java search engine Apache Lucene 3.4.0. The editor thinks it is very practical, so I share it with you as a reference. I hope you can get something after reading this article.

Apache Lucene is an open source search engine, which can easily add full-text search function to Java software. Lucene's main job is to index every word of the document, the index makes the search more efficient than the traditional word for word, Lucen provides a set of interpretation, filtering, analysis of documents, layout and the use of index API, its powerful place is in addition to efficient and simple, is the most important is to enable users to customize its functions whenever they need to. Lucene is a sub-project of the apache Software Foundation project team, is an open source full-text search engine toolkit, that is, it is not a complete full-text search engine, but a full-text search engine architecture, provides a complete query engine and indexing engine, part of the text analysis engine. The purpose of Lucene is to provide a simple and easy-to-use toolkit for software developers to conveniently realize the function of full-text retrieval in the target system, or to establish a complete full-text retrieval engine based on it.

Apache Lucene 3.4.0 has been released, which contains a lot of bug fixes, optimizations, and improvements, the main improvements are as follows:

1. A new connection module has been added, and you can use BlockJoinQuery/Collector to retrieve and search documents.

two。 You can now search for the corresponding documents in common terms.

The 3.QueryParser module can be used to create NumericRangeQuery.

4. SynonymFilter has been added to support multiple synonym retrieval.

5. You can use SortField.setMissingValue to control the sorting of documents.

6. Fixed a major bug (LUCENE-3418) that can cause indexes to be corrupted when the operating system or computer crashes.

If you are using Apache Lucene 3.1,3.2 or 3.3, we strongly recommend that you upgrade to this version immediately.

Download address:

Http://www.apache.org/dyn/closer.cgi/lucene/java

This is the end of this article on "what is the use of Java search engine Apache Lucene 3.4.0". I hope the above content can be of some help to you, so that you can learn more knowledge. if you think the article is good, please share it out for more people to see.

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