Java get Node Text
In this section, you will learn how to obtain the text of the node in the specified XML file. For this we have create a 'employee.xml' file. In the given example, we have used XMLInputFactory class in order to get the streams. The class XMLStreamReader reads the entire XML data in the most efficient way.
streamReader.nextTag()- This method of XMLStreamReader class skips any white space, comment, or processing element, until a start element or end element is reached.
streamReader.next()- This method returns the next parsing event.
streamReader.getText()- This method returns the current value of the event.
Understand with Example
In the given below program code, we want to describe you how to obtain the text of the node in the java application from specified XML File. For this we create a xml file name "employee.xml".In order to get the text of the node specified in a XML file, we have a class name GetNodeText,Inside this class we have a main method in which we assign a memory to the object of file class that accept xml file as argument. The XmlInputFactory call a new instance method to obtain the streams from a xml file. The next Tag( ) method of Stream Reader class skips white space comments or elements in processing,untill a start element is reached. The next( ) method of Stream Reader class returns you the next parsing events. The get Text( ) returns you the current value of the event .On the Execution of GetNodeText.java you get the text of the node specified in "employee.xml" xml file.
Here is the 'employee.xml'
| <?xml version="1.0"
encoding="UTF-8"?> <company> <employee> <firstname>Anusmita</firstname> <lastname>Singh</lastname> </employee> </company> |
Here is the code of GetNodeText.java
import java.io.File;
import javax.xml.stream.*;
import java.io.FileInputStream;
public class GetNodeText {
public static void main(String[] args) throws Exception {
File file = new File("employee.xml");
XMLInputFactory Factory = XMLInputFactory.newInstance();
XMLStreamReader streamReader = Factory.createXMLStreamReader
(new FileInputStream(file));
int nodeId = streamReader.nextTag();
nodeId = streamReader.nextTag();
nodeId = streamReader.next();
nodeId = streamReader.next();
nodeId = streamReader.next();
System.out.println("Text of node firstname is: " + streamReader.getText());
nodeId = streamReader.nextTag();
nodeId = streamReader.next();
nodeId = streamReader.next();
nodeId = streamReader.next();
System.out.println("Text of node lastname is: " + streamReader.getText());
}
}
Output will be displayed as:
