[英]Parse XML using DOM and print in java
我嘗試了很多使用DOM解析以下XML的方法。 我無法打印元素的值。 誰能幫助我打印元素的值。
提前致謝
<tns:CustomerDetails xmlns:xe="http://www.w3.org/2001/04/xmlenc#" xmlns:xd="http://www.w3.org/2000/09/xmldsig#" xmlns:tns="http://abc.com/elements" xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:pf="http://abc.com/Service">
<tns:CustomerId>360817</tns:CustomerId>
<tns:CustomerName>ABC Corp</tns:CustomerName>
<tns:PAN>awap</tns:PAN>
<tns:Timestamp>2010-05-20T12:20:19Z</tns:Timestamp>
<tns:RequestId>397</tns:RequestId>
<tns:PIN>1234</tns:PIN>
</tns:CustomerDetails>
我的密碼
File infile = new File("D:\\Cust.xml");
DocumentBuilderFactory dbFactory = DocumentBuilderFactory.newInstance();
DocumentBuilder dBuilder = dbFactory.newDocumentBuilder();
Document doc = dBuilder.parse(infile);
doc.getDocumentElement().normalize();
System.out.println("root of xml file " +
doc.getDocumentElement().getNodeName());
System.out.println("==========================");
NodeList list = doc.getElementsByTagName("CustomerDetails");
System.out.println(list.getLength());
Element name = doc.getElementById("CustomerId");
if (name == null) {
System.out.println("There is no element with the ID ");
} else {
Text text = (Text)name.getFirstChild();
System.out.println("The ID " + " locates the name " + text.getData());
}
我嘗試過
Element name = doc.getElementById("tns:CustomerId");
也..我在打印時為空
您在這里混合模型。 getElementById
用於具有由文檔的DTD標識為ID的屬性的元素,並且由於您的文檔沒有DTD,因此它永遠不會給您任何有用的信息。
因為您的文檔使用名稱空間,所以應使用“ NS”方法提取元素,對於元素中包含的文本,可以使用getTextContent
File infile = new File("D:\\Cust.xml");
DocumentBuilderFactory dbFactory = DocumentBuilderFactory.newInstance();
// namespaces - DocumentBuilderFactory is *not* namespace aware by default
dbFactory.setNamespaceAware(true);
DocumentBuilder dBuilder = dbFactory.newDocumentBuilder();
Document doc = dBuilder.parse(infile);
doc.getDocumentElement().normalize();
System.out.println("root of xml file " +
doc.getDocumentElement().getNodeName());
System.out.println("==========================");
NodeList list = doc.getElementsByTagNameNS(
"http://abc.com/elements", "CustomerDetails");
System.out.println(list.getLength());
for(int i = 0; i < list.getLength(); i++) {
Element custDetails = (Element)list.item(i);
Element id = custDetails.getElementsByTagNameNS(
"http://abc.com/elements", "CustomerId").item(0);
System.out.println("Customer ID: " + id.getTextContent());
Element name = custDetails.getElementsByTagNameNS(
"http://abc.com/elements", "CustomerName").item(0);
System.out.println("Customer Name: " + name.getTextContent());
}
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