return (ProductClass[])products.toArray(new ProductClass[0]);
}
else{
return null;
}
}
public ProductClass[] getAllClass3ById(String class1Id,String class2Id) {
Collection products = new ArrayList();
Element class1Element = null;
Element class2Element = null;
Iterator iterator = this.dom.getRootElement().getChildren().iterator();
do {
Element element = (Element)iterator.next();
if(class1Id.equalsIgnoreCase(element.getAttributeValue("id"))) {
class1Element = element;
break;
}
}while(iterator.hasNext());
if(class1Element!=null) {
Iterator iter = class1Element.getChildren().iterator();
do {
Element element = (Element)iter.next();
if(class2Id.equalsIgnoreCase(element.getAttributeValue("id"))) {
class2Element = element;
break;
}
}while(iter.hasNext());
if(class2Element!=null) {
Iterator iter2 = class2Element.getChildren().iterator();
do {
Element element = (Element)iter2.next();
ProductClass product = new ProductClass(element.getAttributeValue("id"),element.getAttributeValue("className"));
products.add(product);
}while(iter2.hasNext());
}
return (ProductClass[])products.toArray(new ProductClass[0]);
}
else return null;
}
}
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE class SYSTEM "product.dtd" >
<class>
<class1 className="电脑配件" id="1">
<class2 className="内存" id="1">
<class3 id="1" className="kingmax"></class3>
<class3 id="2" className="kingston"></class3>
<class3 id="3" className="samsung"></class3>
<class3 id="4" className="hydadi"></class3>
<class3 id="5" className="ibm"></class3>
</class2>
<class2 className="硬盘" id="2">
<class3 id="6" className="hithait"></class3>
<class3 id="7" className="IBM"></class3>
<class3 id="8" className="samsung"></class3>
<class3 id="9" className="westdata"></class3>
