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jena×Ô´øTutorial05,ÎÒÔõô´íÁË£¿ ÕâÊÇÔ­´úÂ룺 package jena.examples.rdf ; import com.hp.hpl.jena.rdf.model.*; import com.hp.hpl.jena.util.FileManager; import com.hp.hpl.jena.vocabulary.*; import java.io.*; public class Tutorial05 extends Object {          static final String inputFileName = "vc-db-1.rdf";     static final String johnSmithURI = "http://somewhere/JohnSmith/";          public static void main (String args[]) {         // create an empty model         Model model = ModelFactory.createDefaultModel();                 // use the FileManager to find the input file         InputStream in = FileManager.get().open(inputFileName);         if (in == null) {             throw new IllegalArgumentException( "File: " + inputFileName + " not found");         }                  // read the RDF/XML file         model.read(new InputStreamReader(in), "");                  // retrieve the Adam Smith vcard resource from the model         Resource vcard = model.getResource(johnSmithURI);         // retrieve the value of the N property         Resource name = (Resource) vcard.getRequiredProperty(VCARD.N)                                         .getObject();         // retrieve the given name property         String fullName = vcard.getRequiredProperty(VCARD.FN)                                .getString();         // add two nick name properties to vcard         vcard.addProperty(VCARD.NICKNAME, "Smithy")              .addProperty(VCARD.NICKNAME, "Adman");                  // set up the output         System.out.println("The nicknames of \"" + fullName + "\" are:");         // list the nicknames         StmtIterator iter = vcard.listProperties(VCARD.NICKNAME);         while (iter.hasNext()) {             System.out.println("    " + iter.nextStatement().getObject()                                             .toString());         }     } } ¿ØÖÆ̨£º java.lang.IllegalArgumentException: File: vc-db-1.rdf not found  at jena.examples.rdf.Tutorial05.main(Tutorial05.java:32) Exception in thread "main" ÎÒÊDzËÄñ£¡Ë­À´°ï°ïÎÒ£¿    Êղؠ  ·ÖÏí   ¶¥(0)

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