Java dom解析器getElement

我只想在贝鲁特的餐馆吃饭，请帮忙

这是我的xml文件的一部分：

城市->贝鲁特->餐厅->餐厅->名称->

    tyr->restaurants->restaurant->name-> 

    jbeil->restaurants->restaurant->name->

...

...

...

因为这个代码给了我所有城市的所有餐厅：

试试{

 File inputFile = new File("src/josephXml.xml");

     DocumentBuilderFactory dbFactory 

        = DocumentBuilderFactory.newInstance();

     DocumentBuilder dBuilder = dbFactory.newDocumentBuilder();

     Document doc = dBuilder.parse(inputFile);

     doc.getDocumentElement().normalize();






     NodeList nList = doc.getElementsByTagName("Restaurant");

     for (int temp = 0; temp < nList.getLength(); temp++) {

    Node nNode = nList.item(temp);


       if (nNode.getNodeType() == Node.ELEMENT_NODE) {

           Element eElement = (Element) nNode; 



            jTextArea1.append( "\n"+"Name      :   "+ eElement
              .getElementsByTagName("name")
              .item(0)
              .getTextContent()+"\n "

File inputFile=new文件（“src/josephXml.xml”）；
DocumentBuilderFactory数据库工厂
=DocumentBuilderFactory.newInstance（）；
DocumentBuilder dBuilder=dbFactory.newDocumentBuilder（）；
Document doc=dBuilder.parse（inputFile）；
doc.getDocumentElement（）.normalize（）；
NodeList nList=doc.getElementsByTagName（“餐厅”）；
对于（int-temp=0；temp

---

，我只想要贝鲁特的餐馆，请帮助您使用餐馆，但您的文件使用餐馆。这不好，因为区分大小写

使用XPath：您可以选择很多东西，它非常可读

在代码中替换此选项：

XPath xPath = XPathFactory.newInstance().newXPath();
String expression="/city/beirut/restaurants/restaurant";

NodeList nList = (NodeList)  xPath.compile(expression).evaluate(document, XPathConstants.NODESET);

<restaurants>

  <restaurant>

     <name>

     ...

 </restaurant>

</restaurants>

 File inputFile = new File("src/josephXml.xml");

     DocumentBuilderFactory dbFactory 

        = DocumentBuilderFactory.newInstance();

     DocumentBuilder dBuilder = dbFactory.newDocumentBuilder();

     Document doc = dBuilder.parse(inputFile);

     doc.getDocumentElement().normalize();






     NodeList nList = doc.getElementsByTagName("Restaurant");

     for (int temp = 0; temp < nList.getLength(); temp++) {

    Node nNode = nList.item(temp);


       if (nNode.getNodeType() == Node.ELEMENT_NODE) {

           Element eElement = (Element) nNode; 



            jTextArea1.append( "\n"+"Name      :   "+ eElement
              .getElementsByTagName("name")
              .item(0)
              .getTextContent()+"\n "

XPath xPath = XPathFactory.newInstance().newXPath();
String expression="/city/beirut/restaurants/restaurant";

NodeList nList = (NodeList)  xPath.compile(expression).evaluate(document, XPathConstants.NODESET);