PrefixQuery前缀搜索符合的所有放入map

/** PrefixQuery前缀搜索符合的所有放入map


     *  @param File indexDir,索引目录;


     *  @param String word 索引关键词前缀


     *  @return Map


     *  @author niewj @since 2011-3-10 */
 


    public

static
Map getPairMap(File indexDir,String field,String word) { 


        Map pairMap=new
HashMap(); 


        Directory dir=null
; 


        try
{ 


            dir = new
SimpleFSDirectory(indexDir); 


            IndexSearcher searcher=new
IndexSearcher(dir); 


            Term term=new
Term(field,word); 


            PrefixQuery query=new
PrefixQuery(term); 


             

            TopDocs topDocs=searcher.search(query,5000
); 


            System.out.println("total hit:"
+topDocs.totalHits); 


            ScoreDoc[] docs=topDocs.scoreDocs; 

            for
(
int
i=
0
;i

                Document doc=searcher.doc(docs[i].doc); 

                String pair=doc.getField("pairContent"
).stringValue(); 


                String value=doc.getField("pairLines"
).stringValue(); 


                pairMap.put(pair, Integer.parseInt(value)); 

                System.out.println(pair+"-"
+value); 


            } 

        } catch
(IOException e) { 


            e.printStackTrace();    //
 


        } 

        return
pairMap; 


    }