Java Swing Tutorial - Java Swing JEditorPane








A JEditorPane is a text component that can handle different text with style.

By default, it can handle plain text, HTML, and Rich Text Format (RTF).

A JEditorPane is primarily used to display an HTML document with only basic HTML elements.

The following code uses a JEditorPane to display a HTML page. 

JEditorPane htmlPane  = new JEditorPane("http://www.java2s.com");

JEditorPane is preconfigured to understand three types of contents:

  • text/plain
  • text/html
  • text/rtf

We can use the following code to display the text Hello, using the <h1> tag in HTML: 

htmlPane.setContentType("text/html");
htmlPane.setText("<html><body><h1>Hello</h1></body></html>");

To handle an RTF file, use a file protocol 

editorPane.setPage("file:///C:/test.rtf");

The following code shows how to handle hyper link click event in JEditorPane. 

import java.awt.BorderLayout;
import java.awt.Container;
import java.beans.PropertyChangeEvent;
import java.io.IOException;
import java.net.URL;
/*w  w w .j  a v  a 2s  .com*/
import javax.swing.Box;
import javax.swing.JEditorPane;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.event.HyperlinkEvent;

public class Main extends JFrame {
  JEditorPane editorPane = new JEditorPane();

  public Main(String title) {
    super(title);
    this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    Container contentPane = this.getContentPane();
    Box editorPaneBox = this.getEditPaneBox();
    contentPane.add(editorPaneBox, BorderLayout.CENTER);
  }
  private Box getEditPaneBox() {
    editorPane.setEditable(false);
    Box editorBox = Box.createHorizontalBox();
    editorBox.add(new JScrollPane(editorPane));

    editorPane.addHyperlinkListener((HyperlinkEvent event) -> {
      if (event.getEventType() == HyperlinkEvent.EventType.ACTIVATED) {
        go(event.getURL());
      } else if (event.getEventType() == HyperlinkEvent.EventType.ENTERED) {
        System.out.println("click this link");
      } else if (event.getEventType() == HyperlinkEvent.EventType.EXITED) {
        System.out.println("Ready");
      }
    });

    editorPane.addPropertyChangeListener((PropertyChangeEvent e) -> {
      String propertyName = e.getPropertyName();
      if (propertyName.equalsIgnoreCase("page")) {
        URL url = editorPane.getPage();
        System.out.println(url.toExternalForm());
      }
    });

    return editorBox;
  }
  public void go(URL url) {
    try {
      editorPane.setPage(url);

    } catch (IOException e) {
      System.out.println(e.getMessage());
    }
  }
  public void go(String urlString) {
    try {
      URL url = new URL(urlString);
      go(url);
    } catch (IOException e) {
      System.out.println(e.getMessage());
    }
  }
  public static void main(String[] args) {
    Main browser = new Main("");
    browser.setSize(700, 500);
    browser.setVisible(true);
    browser.go("http://www.java2s.com");
  }
}