我的任务是在 Eclipse 中使用 JDom 解析 XML 文件。当我开始创建代码时,我的代码仅足以获取具有标签名称模型的长度(多少)节点。任务更具体,我需要获取具有属性类型的标签名称模型的节点的长度。我应该如何修改我的代码以获得结果?
这是我的 XML 文件的一部分
<container>
<models>
<model id="FM1" type="BoQ">
<meta
<phase phaseDesc="PRCR>SLCT>"/>
<domain domainCode="SPM.BOQ.RFP "/>
<levelOfDetail levelOfDetailCode="[4]"/>
</meta>
</model>
<model id="FM2" type="Object">
<meta>
<phase phaseDesc="PRCR>SLCT> "/>
<domain domainCode="BIM"/>
<levelOfDetail levelOfDetailCode="[4] "/>
</meta>
</model>
<model id="FM3">
<meta>
<phase phaseDesc="PRCR>SLCT>"/>
<domain domainCode="SPM.QTO"/>
<levelOfDetail levelOfDetailCode="[5]"/>
</meta>
</model>
<model id="FM4" type="BoQ">
<meta>
<phase phaseDesc="PRCR>SLCT>"/>
<domain domainCode="TSM.TSC"/>
<levelOfDetail levelOfDetailCode="[3]"/>
</meta>
</model>
</models>
<linkModels>
<linkModel id="LM1" type="QuantitySplit">
<meta>
<info>
<i k="ModelName" v="Linkmodell"/>
</info>
<domain domainCode="LKM.QSP" domainDesc="Link Model"/>
</meta>
<models>
<model id="FM1"/>
<model id="FM2"/>
<model id="FM3"/>
<model id="FM4"/>
</models>
</container>
公共类 xmldom {
public static void main(String[] args) {
Document xmlDoc = getDocument("./src/MMT_Angebot_Anfrage.xml");
System.out.println("Root: "+
xmlDoc.getDocumentElement().getNodeName());
NodeList model = xmlDoc.getElementsByTagName("model");
System.out.println("Number of Models " +
model.getLength());
String elementPhase = "phase";
String elementDomain = "domain";
String elementLOD = "levelOfDetail";
String attrPhase = "phaseCode";
String attrDomain = "domainCode";
String attrLOD = "levelOfDetailCode";
getElementAndAttrib(model, elementPhase, elementDomain, elementLOD, attrPhase, attrDomain, attrLOD);
}
private static Document getDocument(String docString) {
try {
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
factory.setIgnoringComments(true);
factory.setIgnoringElementContentWhitespace(true);
factory.setValidating(true);
DocumentBuilder builder = factory.newDocumentBuilder();
return builder.parse(new InputSource(docString));
}
catch(Exception ex) {
System.out.println(ex.getMessage());
}
return null;
}
private static void getElementAndAttrib(NodeList model,
String elementPhase, String elementDomain, String elementLOD,
String attrPhase, String attrDomain, String attrLOD) {
try {
for(int i=0; i < model.getLength(); i++){
Node modelNode = model.item(i);
Element modelElement = (Element)modelNode;
NodeList phaseList = modelElement.getElementsByTagName(elementPhase);
NodeList domainList = modelElement.getElementsByTagName(elementDomain);
NodeList lodList = modelElement.getElementsByTagName(elementLOD);
Element phaseElement = (Element)phaseList.item(0);
Element domainElement = (Element)domainList.item(0);
Element lodElement = (Element)lodList.item(0);
NodeList elementList = phaseElement.getChildNodes();
System.out.println("=================================================");
System.out.println(attrPhase + " : "+ phaseElement.getAttribute(attrPhase));
System.out.println(attrDomain + " : "+ domainElement.getAttribute(attrDomain));
System.out.println(attrLOD + " : "+ lodElement.getAttribute(attrLOD));
}
}
catch(Exception ex) {
System.out.println(ex.getMessage());
}
}
}