Java for循环从xml文档

Question

为了简单起见，我很难弄清楚如何编写循环来从给定的XML文档中检索值我会给你一个xml文件的样本

</solution>
          <solution>
               <cost>505.9208295302417</cost>
               <routes>
                    <route>
                         <driverId>noDriver</driverId>
                         <vehicleId>1_1</vehicleId>
                         <start>0.0</start>
                         <act type="service">
                              <serviceId>5  </serviceId>
                              <arrTime>109.9819741964403</arrTime>
                              <endTime>119.9819741964403</endTime>
                         </act>
                         <end>229.9639483928806</end>
                    </route>
                    <route>
                         <driverId>noDriver</driverId>
                         <vehicleId>3_1</vehicleId>
                         <start>0.0</start>
                         <act type="service">
                              <serviceId>4  </serviceId>
                              <arrTime>109.98190391287031</arrTime>
                              <endTime>119.98190391287031</endTime>
                         </act>
                         <act type="service">
                              <serviceId>2 </serviceId>
                              <arrTime>119.98282618841856</arrTime>
                              <endTime>129.98282618841856</endTime>
                         </act>
                         <act type="service">
                              <serviceId>1 </serviceId>
                              <arrTime>129.98372097890456</arrTime>
                              <endTime>139.98372097890456</endTime>
                         </act>
                         <act type="service">
                              <serviceId>3 </serviceId>
                              <arrTime>139.9846432544528</arrTime>
                              <endTime>149.9846432544528</endTime>
                         </act>
                         <end>259.9668316441239</end>
                    </route>
               </routes>
          </solution>
     </solutions>

所以基本上我在代码中我将向您展示的是仅从有成本= 505.9208295302417的节点获取值，请不要考虑这部分代码，所以下一步步骤是检索driverid``, vehicleid and行为，我知道有一个缺少for循环但我不知道放在哪里!!请有人帮忙。我需要的所需输出就像每个vehicleid获取列表与其关联的行为值

java代码

        public static void main(String[] args) {
        try {
            int totalVehicle;
            totalVehicle = 2;
            File fXmlFile = new File("C:/Users/HP/Desktop/solution.xml");
            DocumentBuilderFactory dbFactory = DocumentBuilderFactory.newInstance();
            DocumentBuilder dBuilder = dbFactory.newDocumentBuilder();
            Document doc = dBuilder.parse(fXmlFile);
            doc.getDocumentElement().normalize();
            Double requiredCost = 505.9208295302417;
            System.out.println("Root element :" + doc.getDocumentElement().getNodeName());
            // NodeList nList = doc.getElementsByTagName("route");
            System.out.println("----------------------------");
            NodeList nodeList = doc.getElementsByTagName("solution");
            for (int i = 0; i < nodeList.getLength(); i++) {

                Node solutionNode = nodeList.item(i);

                if (solutionNode.getNodeType() == Node.ELEMENT_NODE) {
                    Element solutionElement = (Element) solutionNode;
                    Node costNode = solutionElement.getElementsByTagName("cost").item(0);
                    Node route = solutionElement.getElementsByTagName("routes").item(0);
                    // if correct cost, proceed to parse further
                    Double costValue = Double.valueOf(costNode.getTextContent());
                    if (Double.compare(requiredCost, costValue) == 0) {
                        System.out.println("working");
                        // there you go, found the node with the cost 505.9208295302417
                        // now just parse all the node elements you need here

                        System.out.println("cost : "
                                + solutionElement.getElementsByTagName("cost")
                                        .item(0).getTextContent());
                        for (int h = 0; h < totalVehicle; h++) {
                            System.out.println("DriverId : "
                                    + solutionElement.getElementsByTagName("driverId")
                                            .item(h).getTextContent().toString());
                            System.out.println("vehicleId : "
                                    + solutionElement.getElementsByTagName("vehicleId")
                                            .item(h).getTextContent());
NodeList optionList = solutionElement.getElementsByTagName("act");
                            System.out.println(optionList.getLength());

        for (int j = 0; j < optionList.getLength(); ++j)
        {

            for(int k =0;k<1;++k){
                Element option = (Element) optionList.item(j);
            String optionText = option.getTextContent();
           //address.add(optionText.replaceAll("[^A-Za-z]"," "));
            System.out.println("Citizen :"+optionText.replaceAll("[^A-Za-z]"," "));}
            ;


        }