import com.hp.hpl.jena.query.QueryExecution;
import com.hp.hpl.jena.query.QueryExecutionFactory;
import com.hp.hpl.jena.sparql.engine.http.QueryExceptionHTTP;

public class QueryTest {

public static void main(String[] args) {
    String service = "http://your.virtuososerver.org/sparql";
    String query = "SELECT * WHERE {?s ?p ?o}";
    QueryExecution qe = QueryExecutionFactory.sparqlService(service, query);
    try {
       ResultSet results = qe.execSelect() ;
       for ( ; results.hasNext() ; ) {
           QuerySolution soln = results.nextSolution() ;
           RDFNode x = soln.get("s") ;
           RDFNode r = soln.get("p") ; 
           RDFNode l = soln.get("o") ;   
       }
    } catch (Exception e) {
        System.out.println("Query error:"+e);
    } finally {
        qe.close();
    }
 }

只需记住将变量 service 指向您的大师所在的位置服务器正在监听。

The easiest way to do it might be as explain on point (16.8.3) of this documentation page HTTP PUT using Content-Type: application/rdf+xml. This mechanism basically runs a HTTP PUT sending your file to the triple store.

curl -T your_file.rdf entity_uri_to_store_file -u user:pass

Think of entity_uri_to_store_file as if was the table where you want to save that file.

So lets say that your file is ontology1.owl and you want to save it in the entity http://myorganisation.com/ontologies/ontology1 your command then would look like ...

curl -T ontology1.owl http://myorganisation.com/ontologies/ontology1 -u user:pass

Note: if you're running a Windows box you can install curl from here.

To query the data afterwards ... you can also do it with curl.

curl -F "query=YOUR SPARQL QUERY" http://your.virtuososerver.org/sparql

Notice that you have to use SPARQL to access the data.

In the case of Jena, you have to use Jena ARQ, by command line ...

java -cp ... arq.query --service 'hhttp://your.virtuososerver.org/sparql' 'SELECT * WHERE {?s ?p ?o}'

or programatically by using the API ...

import com.hp.hpl.jena.query.QueryExecution;
import com.hp.hpl.jena.query.QueryExecutionFactory;
import com.hp.hpl.jena.sparql.engine.http.QueryExceptionHTTP;

public class QueryTest {

public static void main(String[] args) {
    String service = "http://your.virtuososerver.org/sparql";
    String query = "SELECT * WHERE {?s ?p ?o}";
    QueryExecution qe = QueryExecutionFactory.sparqlService(service, query);
    try {
       ResultSet results = qe.execSelect() ;
       for ( ; results.hasNext() ; ) {
           QuerySolution soln = results.nextSolution() ;
           RDFNode x = soln.get("s") ;
           RDFNode r = soln.get("p") ; 
           RDFNode l = soln.get("o") ;   
       }
    } catch (Exception e) {
        System.out.println("Query error:"+e);
    } finally {
        qe.close();
    }
 }

Just remember to point the variable service to where your virtuoso server is listening.

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