lucene 查询实例

1.TermQuery:?

Java代码?
package

?com.lucene.search;???
??
import?java.io.File;???
import?java.io.IOException;???
??
import?org.apache.lucene.analysis.standard.StandardAnalyzer;???
import?org.apache.lucene.index.Term;???
import?org.apache.lucene.queryParser.ParseException;???
import?org.apache.lucene.queryParser.QueryParser;???
import?org.apache.lucene.search.Hits;???
import?org.apache.lucene.search.IndexSearcher;???
import?org.apache.lucene.search.Query;???
import?org.apache.lucene.search.TermQuery;???
import?org.apache.lucene.store.Directory;???
import?org.apache.lucene.store.FSDirectory;???
??
public?class?TermQuerySearcher?{???
????
?public?static?void?main(String[]?args)?throws?IOException,?ParseException?{???
??
??File?indexDir?=?new?File("C:\\test\\index");???
??Directory?fsDir??=?FSDirectory.getDirectory(indexDir);???
??IndexSearcher?searcher?=?new?IndexSearcher(fsDir);???
?????
??String?q?=?"ERROR";???
??Term?t?=?new?Term("contents",?q.toLowerCase());???
??Query?query?=?new?TermQuery(t);???
//??QueryParser?parser?=?new?QueryParser("contents",?new?StandardAnalyzer());???
//??Query?query?=?parser.parse(q);???
??Hits?hits?=?searcher.search(query);???
?????
??System.out.println("共有"?+?searcher.maxDoc()?+?"条索引，命中"?+?hits.length()?+?"条");???
??for(int?i=0;?i<hits.length();?i++)?{???
???int?DocId?=?hits.id(i);???
???String?DocPath?=?hits.doc(i).get("filename");???
???System.out.println(DocId?+?":"?+?DocPath);???
??}???
?}???
}??
2.RangeQuery:?

Java代码?
package?com.lucene.search;???
??
import?java.io.File;???
import?java.io.IOException;???
??
import?org.apache.lucene.analysis.standard.StandardAnalyzer;???
import?org.apache.lucene.index.Term;???
import?org.apache.lucene.queryParser.ParseException;???
import?org.apache.lucene.queryParser.QueryParser;???
import?org.apache.lucene.search.Hits;???
import?org.apache.lucene.search.IndexSearcher;???
import?org.apache.lucene.search.Query;???
import?org.apache.lucene.search.RangeQuery;???
import?org.apache.lucene.store.Directory;???
import?org.apache.lucene.store.FSDirectory;???
??
public?class?RangeQuerySearcher?{???
??
?public?static?void?main(String[]?args)?throws?IOException,?ParseException?{???
??
??File?indexDir?=?new?File("C:\\test\\index");???
??Directory?fsDir??=?FSDirectory.getDirectory(indexDir);???
??IndexSearcher?searcher?=?new?IndexSearcher(fsDir);???
??String?b?=?"2007";???
??String?e?=?"2008";???
??Term?begin?=?new?Term("contents",?b);???
??Term?end?=?new?Term("contents",?e);???
??RangeQuery?query?=?new?RangeQuery(begin,?end,?true);???
//??QueryParser?parser?=?new?QueryParser("contents",?new?StandardAnalyzer());???
//??Query?query?=?parser.parse("[2007?TO?2008]");???
??Hits?hits?=?searcher.search(query);???
?????
??System.out.println("共有"?+?searcher.maxDoc()?+?"条索引，命中"?+?hits.length()?+?"条");???
??for(int?i=0;?i<hits.length();?i++)?{???
???int?DocId?=?hits.id(i);???
???String?DocPath?=?hits.doc(i).get("filename");???
???System.out.println(DocId?+?":"?+?DocPath);???
??}???
?}???
}??
3.BooleanQuery:?

Java代码?
package?com.lucene.search;???
??
import?java.io.File;???
import?java.io.IOException;???
??
import?org.apache.lucene.analysis.standard.StandardAnalyzer;???
import?org.apache.lucene.index.Term;???
import?org.apache.lucene.queryParser.ParseException;???
import?org.apache.lucene.queryParser.QueryParser;???
import?org.apache.lucene.search.BooleanClause;???
import?org.apache.lucene.search.BooleanQuery;???
import?org.apache.lucene.search.Hits;???
import?org.apache.lucene.search.IndexSearcher;???
import?org.apache.lucene.search.Query;???
import?org.apache.lucene.search.RangeQuery;???
import?org.apache.lucene.search.TermQuery;???
import?org.apache.lucene.store.Directory;???
import?org.apache.lucene.store.FSDirectory;???
??
public?class?BooleanQuerySearcher?{???
??
?public?static?void?main(String[]?args)?throws?IOException,?ParseException?{???
??
??File?indexDir?=?new?File("C:\\test\\index");???
??Directory?fsDir??=?FSDirectory.getDirectory(indexDir);???
??IndexSearcher?searcher?=?new?IndexSearcher(fsDir);???
?????
??Query?tq?=?new?TermQuery(new?Term("contents",?"ERROR".toLowerCase()));???
??RangeQuery?rq?=?new?RangeQuery(new?Term("contents",?"2007"),?new?Term("contents",?"2008"),?true);???
??BooleanQuery?query?=?new?BooleanQuery();???
??query.add(tq,?BooleanClause.Occur.MUST);???
??query.add(rq,?BooleanClause.Occur.MUST);???
//??QueryParser?parser?=?new?QueryParser("contents",?new?StandardAnalyzer());???
//??Query?query?=?parser.parse("error?AND?[2007?TO?2008]");???
??Hits?hits?=?searcher.search(query);???
?????
??System.out.println("共有"?+?searcher.maxDoc()?+?"条索引，命中"?+?hits.length()?+?"条");???
??for(int?i=0;?i<hits.length();?i++)?{???
???int?DocId?=?hits.id(i);???
???String?DocPath?=?hits.doc(i).get("filename");???
???System.out.println(DocId?+?":"?+?DocPath);???
??}???
?}???
}??
4.PrefixQuery PrefixQuery前缀搜索

Java代码?
package?com.lucene.search;???
??
import?java.io.File;???
import?java.io.IOException;???
??
import?org.apache.lucene.analysis.standard.StandardAnalyzer;???
import?org.apache.lucene.index.Term;???
import?org.apache.lucene.queryParser.ParseException;???
import?org.apache.lucene.queryParser.QueryParser;???
import?org.apache.lucene.search.Hits;???
import?org.apache.lucene.search.IndexSearcher;???
import?org.apache.lucene.search.PrefixQuery;???
import?org.apache.lucene.search.Query;???
import?org.apache.lucene.store.Directory;???
import?org.apache.lucene.store.FSDirectory;???
??
public?class?PrefixQuerySearcher?{???
??
?public?static?void?main(String[]?args)?throws?IOException,?ParseException?{???
??
??File?indexDir?=?new?File("C:\\test\\index");???
??Directory?fsDir??=?FSDirectory.getDirectory(indexDir);???
??IndexSearcher?searcher?=?new?IndexSearcher(fsDir);???
?????
??String?q?=?"20";???
??Term?t?=?new?Term("contents",?q.toLowerCase());???
??PrefixQuery?query?=?new?PrefixQuery(t);???
//??QueryParser?parser?=?new?QueryParser("contents",?new?StandardAnalyzer());???
//??Query?query?=?parser.parse(q?+?"*");???
??Hits?hits?=?searcher.search(query);???
?????
??System.out.println("共有"?+?searcher.maxDoc()?+?"条索引，命中"?+?hits.length()?+?"条");???
??for(int?i=0;?i<hits.length();?i++)?{???
???int?DocId?=?hits.id(i);???
???String?DocPath?=?hits.doc(i).get("filename");???
???System.out.println(DocId?+?":"?+?DocPath);???
??}???
?}???
}??
5.PhraseQuery? PhraseQuery短语搜索

Java代码?
package?com.lucene.search;???
??
import?java.io.File;???
import?java.io.IOException;???
??
import?org.apache.lucene.index.Term;???
import?org.apache.lucene.search.Hits;???
import?org.apache.lucene.search.IndexSearcher;???
import?org.apache.lucene.search.PhraseQuery;???
import?org.apache.lucene.store.Directory;???
import?org.apache.lucene.store.FSDirectory;???
??
public?class?PhraseQuerySearcher?{???
??
?public?static?void?main(String[]?args)?throws?IOException?{???
?????
??File?indexDir?=?new?File("C:\\test\\index");???
??Directory?fsDir??=?FSDirectory.getDirectory(indexDir);???
??IndexSearcher?searcher?=?new?IndexSearcher(fsDir);???
?????
??String[]?phrase?=?{"ERROR".toLowerCase(),?"TEST".toLowerCase()};???
??PhraseQuery?query?=?new?PhraseQuery();???
??query.setSlop(1);???
??for?(int?i?=?0;?i?<?phrase.length;?i++)?{???
???query.add(new?Term("contents",?phrase));???
??}???
??Hits?hits?=?searcher.search(query);???
?????
??System.out.println("共有"?+?searcher.maxDoc()?+?"条索引，命中"?+?hits.length()?+?"条");???
??for(int?i=0;?i<hits.length();?i++)?{???
???int?DocId?=?hits.id(i);???
???String?DocPath?=?hits.doc(i).get("filename");???
???System.out.println(DocId?+?":"?+?DocPath);???
??}???
?}???
}??
6.WildcardQuery?

Java代码?
package?com.lucene.search;???
??
import?java.io.File;???
import?java.io.IOException;???
??
import?org.apache.lucene.analysis.standard.StandardAnalyzer;???
import?org.apache.lucene.index.Term;???
import?org.apache.lucene.queryParser.ParseException;???
import?org.apache.lucene.queryParser.QueryParser;???
import?org.apache.lucene.search.Hits;???
import?org.apache.lucene.search.IndexSearcher;???
import?org.apache.lucene.search.Query;???
import?org.apache.lucene.search.WildcardQuery;???
import?org.apache.lucene.store.Directory;???
import?org.apache.lucene.store.FSDirectory;???
??
public?class?WildcardQuerySearcher?{???
? //通配符查询
?public?static?void?main(String[]?args)?throws?IOException,?ParseException?{???
?????
??File?indexDir?=?new?File("C:\\test\\index");???
??Directory?fsDir??=?FSDirectory.getDirectory(indexDir);???
??IndexSearcher?searcher?=?new?IndexSearcher(fsDir);???
?????
??Query?query?=?new?WildcardQuery(new?Term("contents",?"?ER*".toLowerCase()));???
//====================================================================================???
//??QueryParser?parser?=?new?QueryParser("contents",?new?StandardAnalyzer());???
//??Query?query?=?parser.parse("?ER*".toLowerCase());????
//====================================================================================???
??Hits?hits?=?searcher.search(query);???
?????
??System.out.println("共有"?+?searcher.maxDoc()?+?"条索引，命中"?+?hits.length()?+?"条");???
??for(int?i=0;?i<hits.length();?i++)?{???
???int?DocId?=?hits.id(i);???
???String?DocPath?=?hits.doc(i).get("filename");???
???System.out.println(DocId?+?":"?+?DocPath);???
??}???
?}???
}??
7.FuzzyQuery?

Java代码?
package?com.lucene.search;???
??
import?java.io.File;???
import?java.io.IOException;???
??
import?org.apache.lucene.analysis.standard.StandardAnalyzer;???
import?org.apache.lucene.index.Term;???
import?org.apache.lucene.queryParser.ParseException;???
import?org.apache.lucene.queryParser.QueryParser;???
import?org.apache.lucene.search.FuzzyQuery;???
import?org.apache.lucene.search.Hits;???
import?org.apache.lucene.search.IndexSearcher;???
import?org.apache.lucene.search.Query;???
import?org.apache.lucene.store.Directory;???
import?org.apache.lucene.store.FSDirectory;???
? //模糊查询查出相近的词
public?class?FuzzyQuerySearcher?{???
??
?public?static?void?main(String[]?args)?throws?IOException,?ParseException?{???
?????
??File?indexDir?=?new?File("C:\\test\\index");???
??Directory?fsDir??=?FSDirectory.getDirectory(indexDir);???
??IndexSearcher?searcher?=?new?IndexSearcher(fsDir);???
?????
??Query?query?=?new?FuzzyQuery(new?Term("contents",?"XERRORX".toLowerCase()));???
??//QueryParser?parser?=?new?QueryParser("contents",?new?StandardAnalyzer());???
??//Query?query?=?parser.parse("ERROR~".toLowerCase());???
??Hits?hits?=?searcher.search(query);???
?????
??System.out.println("共有"?+?searcher.maxDoc()?+?"条索引，命中"?+?hits.length()?+?"条");???
??for(int?i=0;?i<hits.length();?i++)?{???
???int?DocId?=?hits.id(i);???
???String?DocPath?=?hits.doc(i).get("filename");???
???System.out.println(DocId?+?":"?+?DocPath);???
??}???
?}??