-- 作者：oynwj
-- 发布时间：11/21/2007 9:06:00 PM
-- 求助：这段程序错哪了？
请教各位高手，我在Eclipse里运行下面这段程序，为什么总是“无法打开本体文件，程序将终止”，怎么错了呢？
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStreamReader; import com.hp.hpl.jena.query.Query;
import com.hp.hpl.jena.query.QueryExecution;
import com.hp.hpl.jena.query.QueryExecutionFactory;
import com.hp.hpl.jena.query.QueryFactory;
import com.hp.hpl.jena.query.QuerySolution;
import com.hp.hpl.jena.query.ResultSet;
import com.hp.hpl.jena.rdf.model.Model;
import com.hp.hpl.jena.rdf.model.ModelFactory;
import com.hp.hpl.jena.reasoner.Reasoner;
import com.hp.hpl.jena.reasoner.rulesys.GenericRuleReasoner;
import com.hp.hpl.jena.reasoner.rulesys.Rule; public class Jena { /**
* @param args
*/
public String filepath="d\\ktbg\\R9.rdf-xml.owl";
Model model;
public Jena(){
model=ModelFactory.createDefaultModel();
loadmodel();
}
public boolean runQuery(String queryStr){
Query query=QueryFactory.create(queryStr);
QueryExecution qe=QueryExecutionFactory.create(query,model);
ResultSet results=qe.execSelect();
while (results.hasNext()){
QuerySolution soln=results.nextSolution();
System.out.print(soln.get("s").toString());
System.out.print("\t");
System.out.print(soln.get("p").toString());
System.out.print("\t");
System.out.print(soln.get("o").toString());
System.out.println("\n");
}
results =null;
qe.close();
return true;
}
private void loadmodel(){
InputStreamReader in;
try{
FileInputStream file = new FileInputStream(filepath);
in=new InputStreamReader(file,"UTF-8");
model.read(in,null);
String rule = "[owl:inverseOf: (?pa owl:inverseOf ?pb) (?a ?pa ?b)->(?b ?pb ?a)]";
Reasoner reasoner = new GenericRuleReasoner(Rule.parseRules(rule));
model = ModelFactory.createInfModel(reasoner, model);
in.close();
}catch (FileNotFoundException e){
System.out.println("无法打开本体文件，程序将终止");
System.exit(0);
}catch (IOException e){
e.printStackTrace();
System.exit(0);
}
}
public static void main(String[] args){
Jena myLearn = new Jena();
String queryStr = "Select ?s ?p ?o where{?s ?p ?o.}";
myLearn.runQuery(queryStr );
}
}
谢谢指教！
| 
谢谢楼上的朋友，原来是这个问题，呵呵，我的智商太低了