Lucene Search

gistfile1.groovy

// http://www.cnblogs.com/lcuzhanglei/archive/2012/08/01/2618381.html
// 对于要排序的字段，在索引的时候可以Field.Index.NOT_ANALYZED

import org.apache.lucene.analysis.Analyzer
import org.apache.lucene.analysis.standard.StandardAnalyzer
import org.apache.lucene.index.IndexReader
import org.apache.lucene.index.DirectoryReader;
import org.apache.lucene.queryparser.classic.QueryParser
import org.apache.lucene.search.IndexSearcher
import org.apache.lucene.search.Query
import org.apache.lucene.search.Sort
import org.apache.lucene.search.SortField
import org.apache.lucene.search.TopDocs
import org.apache.lucene.store.FSDirectory;
import org.apache.lucene.util.Version;
import org.apache.lucene.search.ScoreDoc;


IndexReader reader = DirectoryReader.open(FSDirectory.open(new File("./db")));
IndexSearcher searcher = new IndexSearcher(reader);
Analyzer analyzer = new StandardAnalyzer(Version.LUCENE_41);

// Analyzer analyzer = new IKAnalyzer();   
// searcher.setSimilarity(new IKSimilarity());   
// Query query = IKQueryParser.parse(name, "衣服"); 

def field = "contents"

QueryParser parser = new QueryParser(Version.LUCENE_41, field, analyzer);
Query query = parser.parse("门");

def pageSize = 10 

Sort sort = new Sort();
SortField sortField = new SortField("path",SortField.Type.STRING,true );
sort.setSort(sortField)

TopDocs results = searcher.search(query, pageSize,sort); 

def show = {
	// print results
	println "-------------------------------------"
	ScoreDoc[] hits = results.scoreDocs;
	int numTotalHits = results.totalHits;
	println(numTotalHits + " total matching documents");
	
	hits.each{
		println "path:" + searcher.doc(it.doc).get("path");
		println "contents:" + searcher.doc(it.doc).get("contents");
	}
}

show()

// next page
results = searcher.searchAfter(results.scoreDocs[results.scoreDocs.size()-1] , query, pageSize, sort)

show()