JavaBean源代码： OWLIndividualInfo.java
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package com.cms.bean;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.List;
import java.util.ArrayList;
import java.util.Map;
import java.util.HashMap;
import com.hp.hpl.jena.ontology.OntModel;
import com.hp.hpl.jena.ontology.OntModelSpec;
import com.hp.hpl.jena.ontology.OntClass;
import com.hp.hpl.jena.ontology.Individual;
import com.hp.hpl.jena.rdf.model.ModelFactory;
import com.hp.hpl.jena.util.iterator.ExtendedIterator;
public class OWLIndividualInfo {
private String filePath; // 所要操作的.owl文件的绝对路径
private OntModel ontModel;
private String prefix;
private List<String> classLst; // 用于存储无子类且拥有实例的概念类名称
private List<String> allIndiLst; // 用于存放所有实例名称
private Map<String, ArrayList<String>> classIndiMap; // 用于存储概念类-实例列表的Map
private void loadModel() {
try {
FileInputStream file = new FileInputStream(filePath);
InputStreamReader in = new InputStreamReader(file, "UTF-8");
ontModel.read(in, null);
in.close();
file.close();
}catch(FileNotFoundException e) {
e.printStackTrace();
}catch(IOException e) {
e.printStackTrace();
}
}
private void setIndividualRelated() {
ExtendedIterator classesIter = ontModel.listClasses();
while(classesIter.hasNext()) {
OntClass ontClass = (OntClass)classesIter.next();
if(!ontClass.hasSubClass()) {
String className = ontClass.getURI();
className = className.substring(className.indexOf('#') + 1);
classLst.add(className);
ExtendedIterator indiIter = ontClass.listInstances();
ArrayList<String> indiLst = new ArrayList<String>();
while(indiIter.hasNext()) {
Individual indi = (Individual)indiIter.next();
String indiName = indi.getURI();
indiName = indiName.substring(indiName.indexOf('#') + 1);
indiLst.add(indiName);
allIndiLst.add(indiName);
}
if(indiLst.size() != 0) {
classIndiMap.put(className, indiLst);
}
}
}
}
public OWLIndividualInfo(String filePath) {
this.filePath = filePath;
ontModel = ModelFactory.createOntologyModel(OntModelSpec.OWL_MEM, null);
loadModel();
prefix = ontModel.getNsPrefixURI("");
classLst = new ArrayList<String>();
classIndiMap = new HashMap<String, ArrayList<String>>();
allIndiLst = new ArrayList<String>();
setIndividualRelated();
}
public List<String> getClassesList() {
return classLst;
}
public Map<String, ArrayList<String>> getClassIndiMap() {
return classIndiMap;
}
public List<String> getAllInstance() {
return allIndiLst;
}
public static void main(String[] args) {
OWLIndividualInfo owlIndiInfo = new OWLIndividualInfo("src\\ontology\\creatureTest.owl");
List<String> classLst = owlIndiInfo.getClassesList();
Map<String, ArrayList<String>> classIndiMap = owlIndiInfo.getClassIndiMap();
for(String className : classLst) {
ArrayList<String> indiLst = classIndiMap.get(className);
System.out.println(className + ":");
for(String indiName : indiLst) {
System.out.println(" " + indiName);
}
}
}
}
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测试所用.owl文件： 新建该"creatureTest.owl"文件时，切记要以"UTF-8"的编码格式保存！
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<?xml version="1.0"?>
<rdf:RDF
xmlns="http://www.owl-ontologies.com/Ontology1255315967.owl#"
xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
xmlns:protege="http://protege.stanford.edu/plugins/owl/protege#"
xmlns:xsp="http://www.owl-ontologies.com/2005/08/07/xsp.owl#"
xmlns:owl="http://www.w3.org/2002/07/owl#"
xmlns:xsd="http://www.w3.org/2001/XMLSchema#"
xmlns:swrl="http://www.w3.org/2003/11/swrl#"
xmlns:swrlb="http://www.w3.org/2003/11/swrlb#"
xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"
xml:base="http://www.owl-ontologies.com/Ontology1255315967.owl">
<owl:Ontology rdf:about=""/>
<owl:Class rdf:ID="虎">
<rdfs:subClassOf>
<owl:Class rdf:ID="动物"/>
</rdfs:subClassOf>
</owl:Class>
<owl:Class rdf:ID="植物">
<rdfs:subClassOf>
<owl:Class rdf:ID="生物"/>
</rdfs:subClassOf>
</owl:Class>
<owl:Class rdf:about="#动物">
<rdfs:subClassOf rdf:resource="#生物"/>
</owl:Class>
<owl:Class rdf:ID="树">
<rdfs:subClassOf rdf:resource="#植物"/>
</owl:Class>
<虎 rdf:ID="孟加拉虎"/>
<树 rdf:ID="李树"/>
<虎 rdf:ID="华南虎"/>
<虎 rdf:ID="爪哇虎"/>
<树 rdf:ID="桃树"/>
<树 rdf:ID="梧桐树"/>
<虎 rdf:ID="巴厘虎"/>
<虎 rdf:ID="东北虎"/>
<树 rdf:ID="柳树"/>
<虎 rdf:ID="里海虎"/>
</rdf:RDF>
<!-- Created with Protege (with OWL Plugin 3.4.1, Build 536) http://protege.stanford.edu -->
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测试使用的JSP页面： AllInstancesDisplay.jsp
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<%@ page contentType="text/html; charset=UTF-8" language="java" import="java.util.*" errorPage="" %>
<%@ page import="com.cms.servlet.test.OWLIndividualInfo;"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>AllInstancesDisplay</title>
</head>
<body>
<table width="400" border="1" align="center">
<tr>
<td width = "200" align = "left">概念类</td>
<td width = "200" align = "left">实例</td>
</tr>
<% String filePath = "\\creatureTest.owl";
filePath = request.getRealPath("\\WEB-INF\\classes\\ontology") + filePath;
OWLIndividualInfo indiInfo = new OWLIndividualInfo(filePath);
List<String> classLst = indiInfo.getClassesList();
Map<String, ArrayList<String>> classIndiMap = indiInfo.getClassIndiMap();
for(String className : classLst) {
ArrayList<String> indiLst = classIndiMap.get(className);
int i = 1;
%><tr>
<td width = "200" align = "left"><%=className %></td>
<% for(String indiName : indiLst) {
if(i == 1) {
%><td with = "200" align = "left"><%=indiName %></td></tr>
<% }
else {
%><tr>
<td with = "200" align = "left"> </td>
<td with = "200" align = "left"><%=indiName %></td>
</tr>
<% }
i++;
}
}
%>
</table>
</body>
</html>
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P.S.
考虑到展示实例的效果，该测试的JSP页面同时显示了实例及其直接所属概念类（叶子概 念类），没有直接实例的概念类（即其本身没有实例的概念类，处于概念类树形结构的根和枝干位置）只使用了OWLIndividualInfo类中List<String> getClassesList()方法和Map<String, ArrayList<String>> getClassIndiMap()方法来获取拥有直接实例的概念类名称和概念类名称-实例列表的映射map。
如果只是需要展示相应本体文件中的所有实例，则可以调用List<String> getAllInstance()方法获得。
另外如果本体是全英文的，则处理相对容易；如果是包含中文的，载入本体内容就要记得如loadModel() 中使用的一样设置编码格式为“UTF-8"。
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2009/10/11 19:54:00
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[求助]如果实现通过jsp页面显示owl内的实例名称
