According to the comprehensive information theory, epistemology information is the trinity of syntactic information, semantic information and pragmatic information. Making better use of pragmatic information in information retrieval can promote the quality of infor- mation retrieval. A document representation model based on query and content can make better use of pragmatic information, and it is good to promote the precision of the website search engine. Lucene is a open source full text search engine architecture which is devel- oped using java language. on document representatio We use luce...