Java get Node Value
In this section, you will learn how to obtain the node value. Before any further processing, you need a XML file. For this we have create a employee.xml file. Now to read the 'employee.xml' file, we have used DocumentBuilderFactory to enable application to obtain a parser Then the DocumentBuilder parse and build the XML document. The Document class access the document's data.
builder.parse(file)- This method parse the content of 'employee.xml'
file as an XML document an return the DOM object.
getDocumentElement()- This method allows direct access to the child node
that is the root element.
getNodeName()- This method returns the node name.
doc.getElementsByTagName("employee")-This method returns the
list of nodes of all the Elements with a given tag name.
getChildNodes()-This method provides all the children of this node.
getNodeValue()- This method returns the node value.
Here is the 'employee.xml' file
| <?xml version="1.0"
encoding="UTF-8"?> <company> <employee> <firstname>Anusmita</firstname> <lastname>Singh</lastname> </employee> </company> |
Here is the code of GetNodeValue
import�java.io.*;
import�org.w3c.dom.*;
import�javax.xml.parsers.*;
public�class�GetNodeValue�{
����public�static�void�main(String[]�args)�throws�Exception�{
��������File�file�=�new�File("employee.xml");
��������DocumentBuilderFactory�dbf�=�DocumentBuilderFactory.newInstance();
��������DocumentBuilder�db�=�dbf.newDocumentBuilder();
��������Document�doc�=�db.parse(file);
��������new�GetNodeValue().GettingText(doc);
����}
����public�void�GettingText(Document�doc)�{
�������Element�e�=�doc.getDocumentElement();
��������NodeList�nodeList�=�doc.getElementsByTagName("employee");
��������for�(int�i�=�0;�i�<�nodeList.getLength();�i++)�{
������������Node�node�=�nodeList.item(i);
������������if�(node.getNodeType()�==�Node.ELEMENT_NODE)�{
����������������Element�element�=�(Element)�node;
����������������NodeList�nodelist�=�element.getElementsByTagName("firstname");
����������������Element�element1�=�(Element)�nodelist.item(0);
����������������NodeList�fstNm�=�element1.getChildNodes();
����������������System.out.print("First�Name�:�"�+�(fstNm.item(0)).getNodeValue());
���������������}
��������}
����}
}
Output will be displayed as:
