从ResultSet中的资源获取URI

Question

for ( ; rs.hasNext() ; ) {
  QuerySolution qs  = rs.next();
  System.out.println( qs.getLiteral("label"));
  System.out.println( qs.getResource("label"));
  …

PREFIX mdb: <http://data.linkedmdb.org/resource/movie/film>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#> 
select ?label ?film where {
  ?film mdb:id ?uri .
  ?film rdfs:label ?label . 
  filter regex(?label,  + queryVar +
}

多亏了约书亚我才想通的。

Answer 1

filter regex(?label,Batman)

filter regex(?label,"Batman")

PREFIX mdb: <http://data.linkedmdb.org/resource/movie/film>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#> 
select ?label ?film
where {
  service <http://data.linkedmdb.org/sparql> {
    ?film mdb:id ?uri .
    ?film rdfs:label ?label . 
    filter regex(?label, "Batman")
  }
}

$ arq --query query.sparql --data data.n3 
-----------------------------------------------------------------------------------------
| label                                | film                                           |
=========================================================================================
| "Batman"                             | <http://data.linkedmdb.org/resource/film/2>    |
| "Batman"                             | <http://data.linkedmdb.org/resource/film/3>    |
| "Batman & Robin"                     | <http://data.linkedmdb.org/resource/film/4>    |
| "Batman: Mask of the Phantasm"       | <http://data.linkedmdb.org/resource/film/737>  |
| "Batman: Mystery of the Batwoman"    | <http://data.linkedmdb.org/resource/film/974>  |
| "Batman Beyond: Return of the Joker" | <http://data.linkedmdb.org/resource/film/1802> |
| "Batman & Mr. Freeze: SubZero"       | <http://data.linkedmdb.org/resource/film/2124> |
-----------------------------------------------------------------------------------------

qs.getLiteral("label")

qs.getResource("film").getURI()

"filter(?label, " + queryVar + "…"

"\"Batman\") UNION { ?film hasPassword ?label }"