如题。
我现在将一个本体用jena来处理成一组statment的形式，比如把Animal.owl处理成以下格式：
http://www.owl-ontologies.com/Ontology1244799080.owl#BeiLion http://www.w3.org/1999/02/22-rdf-syntax-ns#type http://www.owl-ontologies.com/Ontology1244799080.owl#Lion .
http://www.owl-ontologies.com/Ontology1244799080.owl#BeiLion http://www.owl-ontologies.com/Ontology1244799080.owl#belonging http://www.owl-ontologies.com/Ontology1244799080.owl#Beijing_Zoo .
http://www.owl-ontologies.com/Ontology1244799080.owl#Address http://www.w3.org/2000/01/rdf-schema#comment 地址^^http://www.w3.org/2001/XMLSchema#string .
http://www.owl-ontologies.com/Ontology1244799080.owl#Address http://www.w3.org/1999/02/22-rdf-syntax-ns#type http://www.w3.org/2002/07/owl#DatatypeProperty .
http://www.owl-ontologies.com/Ontology1244799080.owl#Address http://www.w3.org/2000/01/rdf-schema#range http://www.w3.org/2001/XMLSchema#string .
http://www.owl-ontologies.com/Ontology1244799080.owl#Address http://www.w3.org/2000/01/rdf-schema#domain http://www.owl-ontologies.com/Ontology1244799080.owl#Zoo .
http://www.owl-ontologies.com/Ontology1244799080.owl#Tel http://www.w3.org/2000/01/rdf-schema#comment 电话号码^^http://www.w3.org/2001/XMLSchema#string .
现在我想把里面所有的http://www.w3.org/2002/07/owl#DatatypeProperty改成http://www.w3.org/2002/07/owl#DatatypeProperty111111
程序如下：
package example;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import com.hp.hpl.jena.rdf.model.Model;
import com.hp.hpl.jena.rdf.model.ModelFactory;
import com.hp.hpl.jena.rdf.model.Property;
import com.hp.hpl.jena.rdf.model.RDFNode;
import com.hp.hpl.jena.rdf.model.Resource;
import com.hp.hpl.jena.rdf.model.Statement;
import com.hp.hpl.jena.rdf.model.StmtIterator;
public class Ev {
public static void main(String[] args) {
Model model=ModelFactory.createDefaultModel();
StmtIterator iter;
String no="http://www.w3.org/2002/07/owl#DatatypeProperty111111";
Resource type=model.getResource(no);
try
{ model.read(new FileInputStream("D:\\Animal.owl"),""); }
catch(IOException ioe)
{
System.err.println(ioe.toString());
}
iter = model.listStatements();
while (iter.hasNext()) {
Statement stmt = iter.nextStatement(); // get next statement
Resource subject = stmt.getSubject(); // get the subject
Property predicate = stmt.getPredicate(); // get the predicate
RDFNode object = stmt.getObject(); // get the object
if(object.toString().equals("http://www.w3.org/2002/07/owl#DatatypeProperty"))
object=type;
System.out.print(subject.toString());
System.out.print(" " + predicate.toString() + " ");
System.out.print(" " + object.toString() + " ");
System.out.println(" .");
}
try
{
model.write(new FileOutputStream("D:\\Animals.owl")) ;
}
catch(IOException ioe)
{ System.err.println(ioe.toString()); }
}}
显示Statement的时候没有问题，但是写到D:\\Animals.owl时，却没有完成修改。不知道为什么？还请各位帮忙，多谢！
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2009/10/29 10:46:00
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【求助】jena中有关statment的修改问题
