Thank you for your answer!
My query is right because I check it on the site as I replied on
Stackoverflow.
The simple queries such as "select distinct ?Concept where {[] a ?Concept}
LIMIT 100" or "select distinct * where {?x ?y ?z} LIMIT 100" don't work in
jena but work on the site
2017-01-30 10:29 GMT+03:00 Lorenz B. <[email protected]>:
> As I said on Stackoverflow, please show the SPARQL query String that is
> created by getStringForQuery()
>
> I looks like this query has somes yntax error such that the endpoint
> returns an HTML error page instead of the resultset format.
>
> > Hello there!
> >
> > Excuse me, I was not subscribed for replies, If someone replied, please
> > resend It.
> > Thank you!
> >
> > ---------- Forwarded message ----------
> > From: Олег Герасин <[email protected]>
> > Date: 2017-01-30 1:00 GMT+03:00
> > Subject: Endpoint returned Content-Type: text/html
> > To: [email protected]
> >
> > Hello!
> >
> > Please, help me!
> >
> > When I try to send a sparql query to some endpoint, for example:
> >
> >> QueryExecution qe = QueryExecutionFactory.sparqlService("http://data.
> >> open.ac.uk/sparql",
> >> getStringForQuery());
> >> ResultSet results = qe.execSelect();
> > I get
> >
> >> Exception in thread "main" org.apache.jena.query.QueryException:
> Endpoint
> >> returned Content-Type: text/html which is not currently supported for
> >> SELECT queries
> >> at org.apache.jena.sparql.engine.http.QueryEngineHTTP.
> execResultSetInner(
> >> QueryEngineHTTP.java:372)
> >> at org.apache.jena.sparql.engine.http.QueryEngineHTTP.
> >> execSelect(QueryEngineHTTP.java:334)
> >
> > And this is nit the only one endpoint, to which I can't send query,
> >
> > What should I do to get results in other content-type? I try to google
> it,
> > but I found that it can happen if I send query to bad html (not sparql
> > endpoint), but http://data.open.ac.uk/sparql is good endpoint, I send
> > sparql query to it via python and everything was good,
> >
> > Best regards,
> > Oleg Gerasin
> >
> --
> Lorenz Bühmann
> AKSW group, University of Leipzig
> Group: http://aksw.org - semantic web research center
>
>
