我在eclipse中运行出现couldnot find the main class.应该怎么解决啊？

MayHao2012 2012-10-16 05:15:32

import com.hp.hpl.jena.rdf.model.*;
import com.hp.hpl.jena.ontology.*;
public class MyOntology
{
public static void main(String[] args) {

OntModel ontModel = ModelFactory.createOntologyModel(OntModelSpec.OWL_MEM);
ontModel.read(" e:/Ontology1347612404406.owl"); // 读取文件，加载模型
m.read(new FileInputStream(myFile), "Ontology1347612404406.owl");
OntClass cls = ontModel.createClass(":DongwuClass");
cls.addComment("the EquivalentClass of Animal...", "EN");

OntClass oc = ontModel.getOntClass("http://www.owl-ontologies.com/marine.owl#Animal");
oc.addEquivalentClass(cls); // 将先前定义的类添加为Animal的等价类
// 迭代显示模型中的类
for (Iterator i = ontModel.listClasses(); i.hasNext();) {
OntClass c = (OntClass) i.next();

if (!c.isAnon()) { // 如果不是匿名类
System.out.print("Class");

// 获取类的URI并输出，在输出时对URI做了简化（将命名空间前缀省略）
System.out.println(c.getModel().getGraph().getPrefixMapping().shortForm(c.getURI()));

// 处理Animal类
if (c.getLocalName().equals("Animal")) { // 如果当前类是Animal
System.out.println(" URI@" + c.getURI()); // 输出它的完整URI
// 取得特定类的等价类
System.out.print(" Animal's EquivalentClass is "+ c.getEquivalentClass());
// 输出等价类的注释
System.out.println(" [comments:" + c.getEquivalentClass().getComment("EN")+"]");
}

// 迭代显示当前类的父类
for (Iterator it = c.listSuperClasses(); it.hasNext();)
{
OntClass sp = (OntClass) it.next();
String str = c.getModel().getGraph()
.getPrefixMapping().shortForm(c.getURI()) // 获取URI
+ "'s superClass is " ;
String strSP = sp.getURI();
try{ // 另一种简化处理URI的方法
str = str + ":" + strSP.substring(strSP.indexOf('#')+1);
System.out.println(" Class" +str);
}
catch( Exception e ){
}
}
// 迭代显示当前类的子类
for (Iterator it = c.listSubClasses(); it.hasNext();)
{
System.out.print(" Class");
OntClass sb = (OntClass) it.next();
System.out.println(c.getModel().getGraph().getPrefixMapping()
.shortForm(c.getURI())
+ "'s suberClass is "
+ sb.getModel().getGraph().getPrefixMapping()
.shortForm(sb.getURI()));
}

// 迭代显示与当前类相关的所有属性
for(Iterator ipp = c.listDeclaredProperties(); ipp.hasNext();)
{
OntProperty p = (OntProperty)ipp.next();
System.out.println(" associated property: " + p.getLocalName());
}
}
}

...全文