Question

如何使用xml DOM解析器获取jbeil中的餐馆名称，请帮助：这是我的XML文件

 <city>

 <beirut>
     <restaurant>
       <name>sada</name>
     </restaurant>
</beirut>

<jbeil>
     <restaurant>
       <name>sada</name>
     </restaurant>
</jbeil>

 <sour>     
     <restaurant>
       <name>sada</name>
     </restaurant>
 </sour>

 </city>

我想使用dom解析器获取Jbeil餐厅的名称，这段代码给我所有城市的餐馆名称：

 try {  
     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 "

Answer 1

使用XPath

许多资源：http://viralpatel.net/blogs/java-xml-xpath-tutorial-parse-xml/

类似的东西（未经测试）

import javax.xml.xpath.XPath;
import javax.xml.xpath.XPathFactory;

XPath xPath =  XPathFactory.newInstance().newXPath();
String expression = "/city/jbeil/restaurant/name";
//read a string value
String thename= xPath.compile(expression).evaluate(xmlDocument);

Answer 2

使用与您相同的代码样式和“仅使用xml DOM解析器”获取<table border="1" > <tr> <th>G2B Code</th> <th>Label</th> <th>API Code</th> </tr> <tr ng-repeat="customer in row.entity.customer"> <td>{{customer.g2bCode}}</td> <td>{{customer.label}}</td> <td>{{customer.apiCode}}</td> </tr> </table>然后jbeil ...

restaurant

但我会选择XPath答案......

使用xml dom解析器获取元素

2 个答案: