Question

我想从xml文件中获取这些元素，并将其用作java

中的字符串变量

 <?xml version="1.0"?>
<componentProperties>
  <component ID="SEC">
    <properties>
      <URL>https://retail/category</URL>
      <Enable>True</Enable>
      <Units>120</Units>
      <Code>10110001</Code>
  <OutPutFilePath>C:\new\tep\</OutPutFilePath>
    </properties>
  </component>
</componentProperties>

通过引用几个例子，我尝试使用DOM解析器，但没有工作。可能是代码错误

File file = new File("D:\\temp\\TestWifi\\DefaultSetting.xml");
      DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
      DocumentBuilder db = dbf.newDocumentBuilder();
      Document doc = db.parse(file);
      doc.getDocumentElement().normalize();

      NodeList nodeLst = doc.getElementsByTagName("properties");

          Node fstNode = nodeLst.item(1);
          if (fstNode.getNodeType() == Node.ELEMENT_NODE) {

               Element fstElmnt = (Element) fstNode;
          NodeList listurl = fstElmnt.getElementsByTagName("URL");
          Element liurl = (Element) listurl.item(0);
          NodeList URL = liurl.getChildNodes();


          url.setText(((Node) URL.item(0)).getNodeValue());

Answer 1

我这样做了

 try{
        InputStream is = getAssets().open("defaultsettings.xml");

        DocumentBuilderFactory dbFactory = DocumentBuilderFactory.newInstance();  
        DocumentBuilder dBuilder = dbFactory.newDocumentBuilder();  
        Document doc = dBuilder.parse(is);

        Element element=doc.getDocumentElement();  
        element.normalize(); 

        NodeList nList = doc.getElementsByTagName("properties");  
        for (int i=0; i<nList.getLength(); i++) {  

            Node node = nList.item(i);  
            if (node.getNodeType() == Node.ELEMENT_NODE) {  
                Element element2 = (Element) node;  
                url.setText(url.getText()+ getValue("URL", element2));
                strurl=getValue("URL", element2);
                enbl.setText(enbl.getText()+ getValue("Enable", element2));
                unit_.setText(timeout.getText()+ getValue("unit", element2));
                code.setText(outpath.getText()+ getValue("code",  element2));
                code.setText(outpath.getText()+ getValue("OutPutFilePath",       element2));
            }
        }

        temp.setText(strurl);

 } catch(Exception e) {
    e.printStackTrace();
 }

如何从xml文件中获取元素到android .java文件

1 个答案: