برندینگ و برندسازی: jena HttpException: 500

۱۳۹۶ مهر ۱۲, چهارشنبه

jena HttpException: 500 - Stack Overflow

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String sparqlQueryString = "SELECT * WHERE ?s ?p ?o . FILTER(isliteral(?o)) offset 0 limit 10000";
 Query query = QueryFactory.create(sparqlQueryString);
 int cDtypes = 0;
 QueryExecution qexec = QueryExecutionFactory.sparqlService("http://dbpedia.org/sparql", query);
 try 
 ResultSet results = qexec.execSelect();
 for (; results.hasNext();) 
 try 
 QuerySolution soln = results.nextSolution();
 String subj = soln.get("?s").toString();
 mResourceDataset.put(subj, endPoint);
 catch (Exception e) 
 e.printStackTrace();
 
 
 catch (Exception e) 
 e.printStackTrace();
 
 finally 
 qexec.close();

Results in this error:

HttpException: 500 at com.hp.hpl.jena.sparql.engine.http.HttpQuery.execGet(HttpQuery.java:340)
at com.hp.hpl.jena.sparql.engine.http.HttpQuery.exec(HttpQuery.java:276)
at com.hp.hpl.jena.sparql.engine.http.QueryEngineHTTP.execSelect(QueryEngineHTTP.java:345)

How to solve?

There are some "similar" questions here, but still, the problem was not solved.

Thanks a lot :)

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۱۳۹۶ مهر ۱۲, چهارشنبه

jena HttpException: 500 - Stack Overflow