In this section, you will learn to get the elements and its value using DOM APIs.
Description of program:
This example parses a xml file and regenerates it at the console using the DOM APIs. This program takes a XML file and initially checks its availability . If file exists then it creates DocumentBuilderFactory. This object creates a DocumentBuilder which parses the XML document using the parse() method. It invokes the DocumentBuilder object and creates a Document object. Through this object you create DOM tree nodes by using the getDocumentElement() method and passes it to the DOMSource(). The DOMSource constructor creates a new input source with a DOM node. And the destination source (where you recieve the result) uses the StreamResult() constructor. Here the "System.out" shows the result on the console.
Here is the XML File: Employee-Detail.xml
| <?xml version = "1.0" ?> <Employee-Detail> <Employee> <Emp_Id> E-001 </Emp_Id> <Emp_Name> Vinod </Emp_Name> <Emp_E-mail> Vinod1@yahoo.com </Emp_E-mail> </Employee> <Employee> <Emp_Id> E-002 </Emp_Id> <Emp_Name> Amit </Emp_Name> <Emp_E-mail> Amit2@yahoo.com </Emp_E-mail> </Employee> <Employee> <Emp_Id> E-003 </Emp_Id> <Emp_Name> Deepak </Emp_Name> <Emp_E-mail> Deepak3@yahoo.com </Emp_E-mail> </Employee> </Employee-Detail> |
Here is the Java File: GetElementsDOM.java
import java.io.*;
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Output of this program:
| C:\vinod\xml>javac GetElementsDOM.java C:\vinod\xml>java GetElementsDOM Enter XML File Name: Employee-Detail.xml <?xml version="1.0" encoding="UTF-8"?><Employee-Detail> <Employee> <Emp_Id> E-001 </Emp_Id> <Emp_Name> Vinod </Emp_Name> <Emp_E-mail> Vinod1@yahoo.com </Emp_E-mail> </Employee> <Employee> <Emp_Id> E-002 </Emp_Id> <Emp_Name> Amit </Emp_Name> <Emp_E-mail> Amit2@gmail.com </Emp_E-mail> </Employee> <Employee> <Emp_Id> E-003 </Emp_Id> <Emp_Name> Deepak </Emp_Name> <Emp_E-mail> Deepak3@hotmail.com </Emp_E-mail> </Employee> </Employee-Detail> |
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