无法加载导入的本体 HTTP 响应代码：403

Question

我在 OWL 文件中存储了以下本体 (https://raw.githubusercontent.com/wiki/ontop/ontop/attachments/Example_MovieOntology/movieontology.owl)。

我尝试加载它：

OWLOntologyManager manager = OWLManager.createOWLOntologyManager();
File file = new File("movieontology.owl");
OWLOntology ontology = manager.loadOntologyFromOntologyDocument(file);

但我得到了这个例外：

Exception in thread "main" org.semanticweb.owlapi.model.UnloadableImportException: Could not load imported ontology: <http://dbpedia.org/ontology/> Cause: Server returned HTTP response code: 403 for URL: http://dbpedia.org/ontology/at uk.ac.manchester.cs.owl.owlapi.OWLOntologyManagerImpl.makeLoadImportRequest(OWLOntologyManagerImpl.java:1766)
at org.semanticweb.owlapi.rdf.rdfxml.parser.TripleHandlers$TPImportsHandler.handleTriple(TripleHandlers.java:1537)
at org.semanticweb.owlapi.rdf.rdfxml.parser.TripleHandlers$HandlerAccessor.handleStreaming(TripleHandlers.java:194)
at org.semanticweb.owlapi.rdf.rdfxml.parser.OWLRDFConsumer.statementWithResourceValue(OWLRDFConsumer.java:1545)
at org.semanticweb.owlapi.rdf.rdfxml.parser.RDFParser.statementWithResourceValue(RDFParser.java:370)
at org.semanticweb.owlapi.rdf.rdfxml.parser.EmptyPropertyElement.startElement(StartRDF.java:236)
at org.semanticweb.owlapi.rdf.rdfxml.parser.PropertyElementList.startElement(StartRDF.java:658)
at org.semanticweb.owlapi.rdf.rdfxml.parser.RDFParser.startElement(RDFParser.java:201)
at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.startElement(Unknown Source)
at com.sun.org.apache.xerces.internal.parsers.AbstractXMLDocumentParser.emptyElement(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.dtd.XMLDTDValidator.emptyElement(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.scanStartElement(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.next(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source)
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source)
at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(Unknown Source)
at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(Unknown Source)
at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown Source)
at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl.parse(Unknown Source)
at org.semanticweb.owlapi.rdf.rdfxml.parser.RDFParser.parse(RDFParser.java:145)
at org.semanticweb.owlapi.rdf.rdfxml.parser.RDFXMLParser.parse(RDFXMLParser.java:73)
at uk.ac.manchester.cs.owl.owlapi.OWLOntologyFactoryImpl.loadOWLOntology(OWLOntologyFactoryImpl.java:197)
at uk.ac.manchester.cs.owl.owlapi.OWLOntologyManagerImpl.actualParse(OWLOntologyManagerImpl.java:1156)
at uk.ac.manchester.cs.owl.owlapi.OWLOntologyManagerImpl.loadOntology(OWLOntologyManagerImpl.java:1112)
at uk.ac.manchester.cs.owl.owlapi.OWLOntologyManagerImpl.loadOntologyFromOntologyDocument(OWLOntologyManagerImpl.java:1062)
at uk.ac.manchester.cs.owl.owlapi.OWLOntologyManagerImpl.loadOntologyFromOntologyDocument(OWLOntologyManagerImpl.java:1073)
at uk.ac.manchester.owl.owlapi.tutorial.examples.SimpleHierarchyExample.main(SimpleHierarchyExample.java:409)
Caused by: org.semanticweb.owlapi.io.OWLOntologyCreationIOException: Server returned HTTP response code: 403 for URL: http://dbpedia.org/ontology/
    at uk.ac.manchester.cs.owl.owlapi.OWLOntologyFactoryImpl.loadOWLOntology(OWLOntologyFactoryImpl.java:207)
    at uk.ac.manchester.cs.owl.owlapi.OWLOntologyManagerImpl.actualParse(OWLOntologyManagerImpl.java:1156)
    at uk.ac.manchester.cs.owl.owlapi.OWLOntologyManagerImpl.loadOntology(OWLOntologyManagerImpl.java:1112)
    at uk.ac.manchester.cs.owl.owlapi.OWLOntologyManagerImpl.loadOntology(OWLOntologyManagerImpl.java:1014)
    at uk.ac.manchester.cs.owl.owlapi.OWLOntologyManagerImpl.loadImports(OWLOntologyManagerImpl.java:1723)
    at uk.ac.manchester.cs.owl.owlapi.OWLOntologyManagerImpl.makeLoadImportRequest(OWLOntologyManagerImpl.java:1759)
    ... 29 more

如果我尝试通过基于 Web 的本体可视化 (WebVOWL) 加载本体，它加载时没有任何问题。 我该如何解决？

Answer 1

移至 OWLAPI 4.2.3。内容协商已升级，应该可以处理调用者知道如何解析的任何格式。

如果这不起作用，请在 github 上的 OWLAPI 跟踪器中提出问题。