楼主

[求助]用SPARQL查詢property結果會這樣?? 請問各位大大們: try{             FileInputStream file=new FileInputStream("PeriodicTable.owl");             InputStreamReader in=new InputStreamReader(file,"UTF-8");             Model tempModel =ModelFactory.createDefaultModel();             tempModel.read(in,null);             String qureyString=                "PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> "+                 "PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>"+                 "PREFIX table:<http://www.daml.org/2003/01/periodictable/PeriodicTable#>"+                                 "SELECT *"+                 "WHERE{"+                 "table:group_17   ?p  table:I ." +                 "}";             Query query =QueryFactory.create(querytString);             QueryExecution qe=QueryExecutionFactory.create(query,tempModel);             ResultSet results=qe.execSelect();                                       ResultSetFormatter.out(System.out,results,query);                      qe.close();         }catch(IOException e){             e.printStackTrace();         } } PeriodicTable.owl: http://www.daml.org/2003/01/periodictable/PeriodicTable.owl 執行出來結果是: ----- | p | ===== ----- 為什麼呢? 因為我查主體.客體都有值跑出來!! 但查謂詞會是沒東西 = =??    收藏   分享   顶(0)

	第2楼

--------------------------------------------------------------------- | p                                                                 | ===================================================================== | <http://www.daml.org/2003/01/periodictable/PeriodicTable#element> | --------------------------------------------------------------------- 我这里运行没有问题

	第3楼

謝謝大大...問題已解決 原來我多打這一行 Query query =QueryFactory.create(querytString); QueryExecution qe=QueryExecutionFactory.create(query,tempModel); ResultSet results=qe.execSelect(); QuerySolution rb=rs.nextSolution();------------>這一行!!     ResultSetFormatter.out(System.out,results,query); 但不知道為何多這行 查主體.客體都有值跑出來,但查謂詞會是空的...為什麼呢

	第4楼

想请教下已经用  InputStreamReader in=new InputStreamReader(file,"UTF-8");处理中文 可是到了 ResultSetFormatter.out(System.out,results,query);查询出来的结果怎么显示是乱码呢?英文数字的都可以正常显示.