-- 发布时间：4/25/2011 4:18:00 PM
-- 各位大侠求助啊[求助]
大家好，我是新手，现在想用jena解析owl文件显示类的结构树。思路就是获取thing类，然后通过迭代遍历子类来构建类树结构。代码如下：
public Node getTreeRoot(String owlPath, String url) {
// 创建本体模型
OntModel ontModel = ModelFactory
.createOntologyModel(OntModelSpec.OWL_MEM,null);
ontModel.read("file:" + owlPath); // 读取文件，加载模型
OntClass oc = ontModel.getOntClass(url + "Thing");
preOrder(oc, root);
return root;
}
public void preOrder(OntClass c, Node node) {
// 如果传进来的节点不为空，则遍历，注，叶子节点的子节点为null
if (!c.isAnon()) {
node.setId(i);
i++;
node.setText(c.getModel().getGraph().getPrefixMapping().shortForm(
c.getURI()));
node.setIcon("images/icon.png");
if (c.hasSubClass()) {
node.setLeaf(false);
for (Iterator it = c.listSubClasses(); it.hasNext();) {
OntClass sb = (OntClass) it.next();
Node snode = new Node();
node.getChildren().add(snode);
preOrder(sb, snode);
}
} else {
node.setLeaf(true);
}
}
}
我自定义了一个node类用来存放节点，有如下属性：
private int id;
private String text;
private boolean leaf;
private String icon;
private List<Node> children = new ArrayList<Node>();
前台的树控件用的是extjs的tree组件，现在的问题就是根据thing类listsubclasses后没有取到所有的子类，只取到部分，调了好几天了都不知道问题所在，实在头痛，麻烦高手帮个忙了。
owl文件是用protege创建的，如下：
<?xml version="1.0"?>
<rdf:RDF
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="http://www.owl-ontologies.com/Ontology1295491584.owl#"
xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"
xml:base="http://www.owl-ontologies.com/Ontology1295491584.owl">
<owl:Ontology rdf:about=""/>
<owl:Class rdf:ID="Camera">
<rdfs:subClassOf>
<owl:Class rdf:ID="Electronic_Product"/>
</rdfs:subClassOf>
</owl:Class>
<owl:Class rdf:ID="Mobile_Phone">
<rdfs:subClassOf>
<owl:Class rdf:about="#Electronic_Product"/>
</rdfs:subClassOf>
</owl:Class>
<owl:Class rdf:ID="Company"/>
<owl:Class rdf:ID="Administrator">
<rdfs:subClassOf>
<owl:Restriction>
<owl:onProperty>
<owl:ObjectProperty rdf:ID="edit"/>
</owl:onProperty>
<owl:someValuesFrom>
<owl:Class rdf:about="#Electronic_Product"/>
</owl:someValuesFrom>
</owl:Restriction>
</rdfs:subClassOf>
<rdfs:subClassOf>
<owl:Restriction>
<owl:someValuesFrom>
<owl:Class rdf:about="#Electronic_Product"/>
</owl:someValuesFrom>
<owl:onProperty>
<owl:ObjectProperty rdf:ID="delete"/>
</owl:onProperty>
</owl:Restriction>
</rdfs:subClassOf>
<rdfs:subClassOf>
<owl:Restriction>
<owl:someValuesFrom>
<owl:Class rdf:about="#Electronic_Product"/>
</owl:someValuesFrom>
<owl:onProperty>
<owl:ObjectProperty rdf:ID="add"/>
</owl:onProperty>
</owl:Restriction>
</rdfs:subClassOf>
<rdfs:subClassOf>
<owl:Class rdf:ID="User"/>
</rdfs:subClassOf>
</owl:Class>
<owl:Class rdf:ID="Game_Player">
<rdfs:subClassOf>
<owl:Class rdf:about="#Electronic_Product"/>
</rdfs:subClassOf>
</owl:Class>
<owl:Class rdf:ID="Shop">
<rdfs:subClassOf>
<owl:Restriction>
<owl:onProperty>
<owl:ObjectProperty rdf:ID="sell"/>
</owl:onProperty>
<owl:allValuesFrom>
<owl:Class rdf:ID="Product"/>
</owl:allValuesFrom>
</owl:Restriction>
</rdfs:subClassOf>
<rdfs:subClassOf rdf:resource="http://www.w3.org/2002/07/owl#Thing"/>
</owl:Class>
<owl:Class rdf:ID="Area"/>
<owl:Class rdf:about="#User">
<rdfs:subClassOf>
<owl:Restriction>
<owl:onProperty>
<owl:ObjectProperty rdf:ID="searh"/>
</owl:onProperty>
<owl:allValuesFrom rdf:resource="#Product"/>
</owl:Restriction>
</rdfs:subClassOf>
<rdfs:subClassOf rdf:resource="http://www.w3.org/2002/07/owl#Thing"/>
</owl:Class>
<owl:Class rdf:ID="Provider">
<rdfs:subClassOf>
<owl:Restriction>
<owl:allValuesFrom rdf:resource="#Product"/>
<owl:onProperty>
<owl:ObjectProperty rdf:ID="provide"/>
</owl:onProperty>
</owl:Restriction>
</rdfs:subClassOf>
<rdfs:subClassOf rdf:resource="http://www.w3.org/2002/07/owl#Thing"/>
</owl:Class>
<owl:Class rdf:ID="Earphone">
<rdfs:subClassOf>
<owl:Class rdf:about="#Electronic_Product"/>
</rdfs:subClassOf>
</owl:Class>
<owl:Class rdf:ID="VIP_Customer">
<rdfs:subClassOf>
<owl:Class rdf:ID="Customer"/>
</rdfs:subClassOf>
</owl:Class>
<owl:Class rdf:about="#Customer">
<rdfs:subClassOf>
<owl:Restriction>
<owl:onProperty>
<owl:ObjectProperty rdf:ID="add_into_shopcart"/>
</owl:onProperty>
<owl:someValuesFrom>
<owl:Class rdf:about="#Electronic_Product"/>
</owl:someValuesFrom>
</owl:Restriction>
</rdfs:subClassOf>
<rdfs:subClassOf>
<owl:Restriction>
<owl:onProperty>
<owl:ObjectProperty rdf:ID="add_into_favorites"/>
</owl:onProperty>
<owl:someValuesFrom>
<owl:Class rdf:about="#Electronic_Product"/>
</owl:someValuesFrom>
</owl:Restriction>
</rdfs:subClassOf>
<rdfs:subClassOf rdf:resource="#User"/>
</owl:Class>
<owl:Class rdf:about="#Electronic_Product">
<rdfs:subClassOf rdf:resource="#Product"/>
</owl:Class>
<owl:Class rdf:ID="MP4">
<rdfs:subClassOf rdf:resource="#Electronic_Product"/>
</owl:Class>
<owl:Class rdf:ID="Mobile_Storage">
<rdfs:subClassOf rdf:resource="#Electronic_Product"/>
</owl:Class>
<owl:Class rdf:ID="Computer">
<rdfs:subClassOf rdf:resource="#Electronic_Product"/>
</owl:Class>
<owl:Class rdf:ID="MP3">
<rdfs:subClassOf rdf:resource="#Electronic_Product"/>
</owl:Class>
<owl:Class rdf:ID="Normal_Customer">
<rdfs:subClassOf rdf:resource="#Customer"/>
</owl:Class>
<owl:Class rdf:ID="Electronic_Book">
<rdfs:subClassOf rdf:resource="#Electronic_Product"/>
</owl:Class>
<owl:Class rdf:ID="Electronic_Shop">
<rdfs:subClassOf>
<owl:Restriction>
<owl:allValuesFrom rdf:resource="#Electronic_Product"/>
<owl:onProperty>
<owl:ObjectProperty rdf:ID="main_sell"/>
</owl:onProperty>
</owl:Restriction>
</rdfs:subClassOf>
<rdfs:subClassOf rdf:resource="#Shop"/>
</owl:Class>
<owl:ObjectProperty rdf:about="#provide">
<rdfs:range rdf:resource="#Product"/>
<rdfs:domain rdf:resource="#Provider"/>
</owl:ObjectProperty>
<owl:ObjectProperty rdf:about="#main_sell">
<rdfs:subPropertyOf>
<owl:ObjectProperty rdf:about="#sell"/>
</rdfs:subPropertyOf>
</owl:ObjectProperty>
<owl:ObjectProperty rdf:about="#add_into_shopcart">
<rdfs:range rdf:resource="#Product"/>
<rdfs:domain rdf:resource="#Customer"/>
</owl:ObjectProperty>
<owl:ObjectProperty rdf:about="#edit">
<rdfs:domain rdf:resource="#Administrator"/>
<rdfs:range rdf:resource="#Product"/>
</owl:ObjectProperty>
<owl:ObjectProperty rdf:about="#add_into_favorites">
<rdfs:domain rdf:resource="#Customer"/>
<rdfs:range rdf:resource="#Product"/>
</owl:ObjectProperty>
<owl:ObjectProperty rdf:about="#sell">
<rdfs:range rdf:resource="#Product"/>
<rdfs:domain rdf:resource="#Shop"/>
</owl:ObjectProperty>
<owl:ObjectProperty rdf:about="#searh">
<rdfs:domain rdf:resource="#User"/>
<rdfs:range rdf:resource="#Product"/>
</owl:ObjectProperty>
<owl:ObjectProperty rdf:about="#add">
<rdfs:range rdf:resource="#Product"/>
<rdfs:domain rdf:resource="#Administrator"/>
</owl:ObjectProperty>
<owl:ObjectProperty rdf:about="#delete">
<rdfs:domain rdf:resource="#Administrator"/>
<rdfs:range rdf:resource="#Product"/>
</owl:ObjectProperty>
<owl:DatatypeProperty rdf:ID="color">
<rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
<rdfs:domain rdf:resource="#Product"/>
</owl:DatatypeProperty>
<owl:DatatypeProperty rdf:ID="date">
<rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#date"/>
<rdfs:domain rdf:resource="#Product"/>
</owl:DatatypeProperty>
<owl:DatatypeProperty rdf:ID="price">
<rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#float"/>
<rdfs:domain rdf:resource="#Product"/>
</owl:DatatypeProperty>
<owl:DatatypeProperty rdf:ID="stock">
<rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#int"/>
<rdfs:domain rdf:resource="#Product"/>
</owl:DatatypeProperty>
<owl:DatatypeProperty rdf:ID="name">
<rdfs:domain rdf:resource="#Product"/>
<rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
</owl:DatatypeProperty>
<owl:DatatypeProperty rdf:ID="discount">
<rdfs:domain rdf:resource="#Product"/>
<rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#float"/>
</owl:DatatypeProperty>
</rdf:RDF>
<!-- Created with Protege (with OWL Plugin 3.4.4, Build 579) http://protege.stanford.edu -->
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