RDF.zip_The Various_rdf

package tutorial; import com.hp.hpl.jena.rdf.model.Model; import com.hp.hpl.jena.rdf.model.ModelFactory; import com.hp.hpl.jena.rdf.model.Resource; import com.hp.hpl.jena.rdf.model.StmtIterator; import com.hp.hpl.jena.vocabulary.VCARD; public class RDFReading { public static void main(String[] args){ String personURI = "http://somewhere/JohnSmith"; String givenName = "John"; String familyName = "Smith"; String fullName = givenName + " " + familyName; Model model = ModelFactory.createDefaultModel(); Resource johnSmith = model.createResource(personURI); johnSmith.addProperty(VCARD.FN, fullName); johnSmith.addProperty(VCARD.N, model.createResource() .addProperty(VCARD.Given, givenName) .addProperty(VCARD.Family, familyName)); // 从 Model 获取资源 Resource vcard = model.getResource(personURI); /* // 获取N 属性的值（用属性的 getObject()方法） Resource name = (Resource) vcard.getProperty(VCARD.N) .getObject(); */ // 如果知道属性的值是资源，可以使用属性的getResource 方法 Resource name = vcard.getProperty(VCARD.N) .getResource(); // 属性的值若是 literal，则使用 getString 方法 fullName = vcard.getProperty(VCARD.FN) .getString(); // 增加两个 NICKNAME 属性 vcard.addProperty(VCARD.NICKNAME, "Smithy") .addProperty(VCARD.NICKNAME, "Adman"); System.out.println("The nicknames of \"" + fullName + "\" are:"); // 列出两个NICKNAME 属性，使用资源的 listProperties 方法 StmtIterator iter = vcard.listProperties(VCARD.NICKNAME); while (iter.hasNext()) { System.out.println(" " + iter.nextStatement() .getObject() .toString()); } } }