Thank you very much Mr. Seaborne, I will try to make the suggested changes and see how it goes.
With Best Regards DISCLAIMER: This e-mail contains confidential and/or privileged information. If you are not the intended recipient, or have received this e-mail in error, please notify the sender immediately and delete this message. Any unauthorized copying, disclosure or distribution of the content of this e-mail is strictly forbidden. Hyrundo > On Nov 25, 2019, at 7:19 PM, Andy Seaborne <[email protected]> wrote: > > http://revyu.com/sparql is sending back "Content-Type: text/html" but it's > not HTML. > > And when I tries "SELECT (1 AS ?Z) {}" it didn't return the right answers > anyway (one row, one col, ?Z=1) > > Best I can suggest is make the call with HttpOp.execHttpGet - your have to > make the URL with thw "?query=" all correctly encoded > (URLEncodedUtils.format(paramList, StandardCharsets.UTF_8) will help) > > When to have it as an InputStream, use ResultSetFactor.fromXML > > Andy > > On 25/11/2019 16:35, Hyrundo Publishing Association wrote: >> Hello Sirs at Jena, >> I get this stacktrace warning from Jena 3.12.0 on NetBeans IDE: >> org.apache.jena.query.QueryException: Endpoint returned Content-Type: >> text/html which is not rcognized for SELECT queries >> I’m trying to make the example query given at >> http://revyu.com/sparql/queryform <http://revyu.com/sparql/queryform> >> but this time remotely against the revyu.com/sparql >> <http://revyu.com/sparql> endpoint, using the following class/main method: >> import org.apache.jena.query.* ; >> import org.apache.jena.sparql.engine.http.QueryEngineHTTP ; >> public class SPARQLEndpointQuery >> { >> static public void main(String...argv) { >> String queryStr = "PREFIX rev: <http://purl.org/stuff/rev#>\n" + >> "PREFIX rdfs: >> <http://www.w3.org/2000/01/rdf-schema#> \n" + >> "\n" + >> "SELECT DISTINCT ?thing ?name ?review >> ?createdOn \n" + >> "WHERE \n" + >> "{ \n" + >> "?thing rdfs:label ?name .\n" + >> "?thing rev:hasReview ?review .\n" + >> "?review rev:reviewer <people/tom> . >> \n" + >> "?review rev:createdOn ?createdOn \n" + >> "} \n" + >> "LIMIT 2 OFFSET 0"; >> Query query = QueryFactory.create(queryStr); >> // Remote execution. >> try ( QueryExecution qexec = >> QueryExecutionFactory.sparqlService("http://revyu.com/sparql";, query) ) { >> // Set the endpoint specific timeout: >> ((QueryEngineHTTP)qexec).addParam("timeout", "10000") ; >> // Execute: >> ResultSet rs = qexec.execSelect(); >> ResultSetFormatter.out(System.out, rs, query); >> } catch (Exception e) { >> e.printStackTrace(); >> } >> } >> } >> I don’t know why it doesn’t work… on a similar query against the >> DBpedia.com/sparql <http://dbpedia.com/sparql> endpoint everything worked >> fine. >> Any hint? Thank you in advance >> Best Regards >> Hyrundo
