Model model = ModelFactory.createDefaultModel();
InputStream in = FileManager.get().open( "W:\\structure.rdf.u8" );
model.read(in, null);
model.write(System.out);
我使用Jena文档中提供的上述代码来解析ODP。首先它给出了一些异常，所以我在 Jena 包中添加了所有jar文件并得到以下长异常：
log4j:WARN No appenders could be found for logger (org.apache.jena.riot.system.stream.JenaIOEnvironment).
log4j:WARN Please initialize the log4j system properly.
log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.
Exception in thread "main" org.apache.jena.riot.RiotException: [line: 5, col: 5 ] {E201} The attributes on this property element, are not permitted with any content; expecting end element tag.
at org.apache.jena.riot.system.ErrorHandlerFactory$ErrorHandlerStd.error(ErrorHandlerFactory.java:128)
at org.apache.jena.riot.lang.LangRDFXML$ErrorHandlerBridge.error(LangRDFXML.java:246)
at org.apache.jena.rdfxml.xmlinput.impl.ARPSaxErrorHandler.error(ARPSaxErrorHandler.java:37)
at org.apache.jena.rdfxml.xmlinput.impl.XMLHandler.warning(XMLHandler.java:196)
at org.apache.jena.rdfxml.xmlinput.impl.XMLHandler.warning(XMLHandler.java:173)
at org.apache.jena.rdfxml.xmlinput.impl.XMLHandler.warning(XMLHandler.java:168)
at org.apache.jena.rdfxml.xmlinput.impl.ParserSupport.warning(ParserSupport.java:194)
at org.apache.jena.rdfxml.xmlinput.states.Frame.warning(Frame.java:55)
at org.apache.jena.rdfxml.xmlinput.states.WantEmpty.characters(WantEmpty.java:33)
at org.apache.jena.rdfxml.xmlinput.impl.XMLHandler.characters(XMLHandler.java:137)
at org.apache.xerces.parsers.AbstractSAXParser.characters(Unknown Source)
at org.apache.xerces.impl.XMLNamespaceBinder.characters(Unknown Source)
at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanContent(Unknown Source)
at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown Source)
at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)
`
我不知道我是否需要删除一些jar文件来修复此问题或 Apache 站点中提供的代码有误？