DBpedia를 쿼리하여 이상한 동작이 발생했습니다.

Question

jena를 사용하여 항상 잘 작동하는 Java 프로그램이 있습니다. 프로그램이 엔드 포인트 "http://dbpedia.org/sparql"(내 생각) 때문에

내가이 오류에이 쿼리

PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#> 
DESCRIBE <http://dbpedia.org/resource/Christopher_Moore_%28author%29> 

을 실행 어제부터

는 DBpedia 아무것도

을 반환하지 않습니다

FINE: Executing query: 
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>   
DESCRIBE <http://dbpedia.org/resource/Christopher_Moore_%28author%29> 
GRAVE: ERROR [http-thread-pool-8080-(2)] (RDFDefaultErrorHandler.java:44) - Premature end of file. 

AVVERTENZA: StandardWrapperValve[jsp]: PWC1406: Servlet.service() for servlet jsp threw exception 
com.hp.hpl.jena.shared.JenaException: org.xml.sax.SAXParseException: Premature end of file. 
     at com.hp.hpl.jena.rdf.model.impl.RDFDefaultErrorHandler.fatalError(RDFDefaultErrorHandler.java:45) 
     at com.hp.hpl.jena.rdf.arp.impl.ARPSaxErrorHandler.fatalError(ARPSaxErrorHandler.java:35) 
     at com.hp.hpl.jena.rdf.arp.impl.XMLHandler.warning(XMLHandler.java:225) 
     at com.hp.hpl.jena.rdf.arp.impl.XMLHandler.fatalError(XMLHandler.java:255) 
     at org.apache.xerces.util.ErrorHandlerWrapper.fatalError(Unknown Source) 
     at org.apache.xerces.impl.XMLErrorReporter.reportError(Unknown Source) 
     at org.apache.xerces.impl.XMLErrorReporter.reportError(Unknown Source) 
     at org.apache.xerces.impl.XMLScanner.reportFatalError(Unknown Source) 
     at org.apache.xerces.impl.XMLDocumentScannerImpl$XMLDeclDispatcher.dispatch(Unknown Source) 
     at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source) 
     at org.apache.xerces.parsers.DTDConfiguration.parse(Unknown Source) 
     at org.apache.xerces.parsers.DTDConfiguration.parse(Unknown Source) 
     at org.apache.xerces.parsers.XMLParser.parse(Unknown Source) 
     at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source) 
     at com.hp.hpl.jena.rdf.arp.impl.RDFXMLParser.parse(RDFXMLParser.java:142) 
     at com.hp.hpl.jena.rdf.arp.JenaReader.read(JenaReader.java:158) 
     at com.hp.hpl.jena.rdf.arp.JenaReader.read(JenaReader.java:145) 
     at com.hp.hpl.jena.rdf.arp.JenaReader.read(JenaReader.java:215) 
     at com.hp.hpl.jena.rdf.model.impl.ModelCom.read(ModelCom.java:197) 
     at com.hp.hpl.jena.sparql.engine.http.QueryEngineHTTP.execModel(QueryEngineHTTP.java:161) 
     at com.hp.hpl.jena.sparql.engine.http.QueryEngineHTTP.execDescribe(QueryEngineHTTP.java:154) 
     at com.hp.hpl.jena.sparql.engine.http.QueryEngineHTTP.execDescribe(QueryEngineHTTP.java:152) 
     at it.unipr.aotlab.dbsoi.sparqlclient.SPARQLClient.executeDescribeQuery(SPARQLClient.java:96) 
     at it.unipr.aotlab.dbsoi.logic.DbSoiLogic.getArtistData(DbSoiLogic.java:200) 
     at it.unipr.aotlab.dbsoi.logic.DbSoiLogic.execute(DbSoiLogic.java:99) 
     at org.apache.jsp.DbSoi_jsp._jspService(DbSoi_jsp.java from :65) 
     at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:109) 
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:847) 
     at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:406) 
     at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:483) 
     at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:373) 
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:847) 
     at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1523) 
     at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:279) 
     at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:188) 
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:641) 
     at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:97) 
     at com.sun.enterprise.web.PESessionLockingStandardPipeline.invoke(PESessionLockingStandardPipeline.java:85) 
     at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:185) 
     at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:325) 
     at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:226) 
     at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:165) 
     at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:791) 
     at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:693) 
     at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:954) 
     at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:170) 
     at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:135) 
     at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:102) 
     at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:88) 
     at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:76) 
     at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:53) 
     at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:57) 
     at com.sun.grizzly.ContextTask.run(ContextTask.java:69) 
     at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:330) 
     at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:309) 
     at java.lang.Thread.run(Thread.java:662) 
Caused by: org.xml.sax.SAXParseException: Premature end of file. 
     at org.apache.xerces.util.ErrorHandlerWrapper.createSAXParseException(Unknown Source) 
     ... 52 more 

는 또한 기본 데이터 세트 이름 (그래프 IRI) w 설정 주소 "http://dbpedia.org/sparql" 에서 웹 브라우저에서 쿼리를 넣어 시도 i 번째 "http://dbpedia.org"

그러나 나는 오류를

Errore의 interpretazione의 XML 얻을 : nessun의 elemento의 trovato Indirizzo : http://dbpedia.org/sparql?default-graph-uri=http%3A%2F%2Fdbpedia.org&query=PREFIX+rdfs%3A+%3Chttp%3A%2F%2Fwww.w3.org%2F2000%2F01%2Frdf-schema%23%3E++++++++%0D%0ADESCRIBE+%3Chttp%3A%2F%2Fdbpedia.org%2Fresource%2FAlbert_Camus%3E&format=application%2Frdf%2Bxml&timeout=0&debug=on 원격 교육의 NUMERO 1, 콜로 나 1 :

누군가 나를 도울 수 있니?

Answer 1

현재 http://dbpedia.org/sparql의 데이터 집합 이름이 http://dbpedia.org 인 쿼리가 정상적으로 작동합니다. DBpedia SPARQL endpoint의 응답 시간이 느려지거나 연결에 문제가있을 때 유사한 오류가 발생합니다. 그러나 나는 이것이 당신을위한 것이라고 확신하지 못합니다.

다음은 RDF/XML 결과의 스 니펫입니다.

<?xml version="1.0" encoding="utf-8" ?> 
<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"> 
<rdf:Description rdf:about="http://dbpedia.org/resource/Christopher_Moore_%28author%29"><dbpedia-owl:wikiPageExternalLink xmlns:dbpedia-owl="http://dbpedia.org/ontology/" rdf:resource="http://www.chrismoore.com"/></rdf:Description> 
<rdf:Description rdf:about="http://dbpedia.org/resource/Christopher_Moore_%28author%29"><dbpedia-owl:abstract xmlns:dbpedia-owl="http://dbpedia.org/ontology/" xml:lang="es">Christopher Moore es un escritor estadounidense de ficción absurda. Su padre fue policía, y su madre trabajó como vendedora de electrodomésticos en un centro comercial. Creció en Mansfield, Ohio donde empezó a escribir a la edad de 12 años, y estudió en la Ohio State University y en el Brooks Institute of Photography en Santa Barbara, California. Trabajó como vendedor de seguros, camarero, fotógrafo, periodista, obrero en la fabrica de cerámica religiosa (motivos de Navidad)y hasta de DJ. Sus novelas suelen mostrar a personajes normales que se ven envueltos en circunstancias sobrenaturales o extraordinarias. Heredando el humanismo de John Steinbeck y el sentido del absurdo de Kurt Vonnegut, Moore se ha convertido en un admirado autor de best-sellers. Según su entrevista con Writer&#39;s Digest en junio de 2007, los derechos para el cine de su primera novela, La Comedia del Diablo, fueron adquiridos por Disney, incluso antes de que el libro fuera publicado. Sin embargo, la adaptación de las novelas de Moore en películas está lejos de ser cumplida, ya que, durante el tour promocional de ¡Chúpate Esa! (2007), como respuesta a las numerosas preguntas de los fans, Moore respondió que todos sus libros han sido propuestos para hacer películas, o sus derechos comprados, pero que ninguno de ellos &quot;corre de momento el riesgo de ser transformado en película&quot;. En junio de 2006, Moore se trasladó a vivir a San Francisco, California, tras residir unos años en la isla de Kauai, Hawaii.</dbpedia-owl:abstract></rdf:Description> 
...