Hyperlinks in a JEditorPane
Hi,
I have an application that connects to a database and retrieves results from the database and then displays the results in a JEditorPane - the results are in the form of a hyperlink - so when i click on the link then a web page is opened up inside of the JEditorPane.
The question i have is, once i have clicked on the link how can i return to the original page, rather thn having to run the program from the start again ?
Is there a pre - defined "back"/"previous page" method i can use, to go back to the previous page ?
Any help would be much appreciated
Thanks Again
sjhori214,
When you read from the database, if you put the contents ( presumably some html with hyperlinks etc) into a String object and store it somewhere (perhaps create a new object which you have a static instance of, and load it into a String variable of that object).
Then, assuming you are using the correct editor kit (text/html), use the
setText( myObject.HTMLfromDB )type of syntax to display this HTML page.
If you also have a button (or other) somewhere in your app, whose actionListener() method calls
setText( myObject.HTMLfromDB )this would re-load the HTML back into the JEditorPane, without re-loading form the Database.
If you wanted to simply implament a "back" button, as supposed to a "home" button you could create a vector of myObject (see above) objects, and navigate back and forward in it and use the setText method to display its contents (of course you would have to add a HyperlinkListener object that fires on page moving and then use getText() to load the latest HTML into a new object.
Hope this gives you some idea of how to proceed
Guy
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Hyperlink trouble in JEditorPane
Hi all,
I am having real trouble with getting a simple HTML document up and running in JAVA. WHY did they make it so HARD?
I want to be able to use internal links, e.g click here to go to top of page etc.
Now apparently I need to add a HyperlinkListener to the JEditorPane. In the code you'll see that i've commented it out. If its left in i get
DisplayHTML.java:61: addHyperlinkListener(javax.swing.event.HyperlinkListener) in javax.swing.JEditorPane cannot be applied to (DisplayHTML)If i change the start class to:
public class DisplayHTML extends JFrame implements ActionListener, HyperlinkListenerI get:
DisplayHTML.java:14: cannot resolve symbolAnd even if it did work there is still a mass of code that needs to be implemented for the internal links to work. grrrrrrrrrrrrr for a language that is meant to be excellent on the web it has poor support for HTML.
If anyone can shed any light on this I would be grateful. Many thanks
drb2k2
Anyway here is the code
import javax.swing.*;
import java.awt.*;
import javax.swing.text.StyledEditorKit;
import javax.swing.text.html.HTMLEditorKit;
import java.net.URL;
import java.net.MalformedURLException;
import java.awt.event.*;
import java.io.*;
public class DisplayHTML extends JFrame implements ActionListener
Color Background = new Color(100, 135, 220);
Color Buttons = new Color(140, 170, 230);
Container content;
String Keep;
JEditorPane jed;
public DisplayHTML()
UIManager.put("Button.select", Buttons);
content = getContentPane();
content.setBackground(Background);
BorderLayout border = new BorderLayout();
content.setLayout(border);
JPanel Button_Panel = new JPanel();
BorderLayout buttons = new BorderLayout();
Button_Panel.setLayout(buttons);
Button_Panel.setBackground(Background);
JButton Save = new JButton("Save");
Save.setBackground(Buttons);
Save.setToolTipText("Press here to save the results file in HTML format");
Save.addActionListener(this);
Save.setActionCommand("Save");
Button_Panel.add(Save, BorderLayout.WEST);
JButton Quit = new JButton("Quit");
Quit.setBackground(Buttons);
Quit.setToolTipText("Press here to exit the screen and loose results");
Quit.addActionListener(this);
Quit.setActionCommand("Quit");
Button_Panel.add(Quit, BorderLayout.EAST);
content.add(Button_Panel, BorderLayout.NORTH);
String str = new String("file:\\" + System.getProperty("user.dir") + "\\" +"Analysis.html");
try
URL url =new URL(str);
HTMLEditorKit lhekFile = new HTMLEditorKit();
jed =new JEditorPane();
jed.setEditorKit( lhekFile );
// jed.addHyperlinkListener(this);
jed.setEditable(false);
JScrollPane htmlScroll = new JScrollPane(jed);
htmlScroll.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED);
htmlScroll.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);
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public void actionPerformed(ActionEvent e)
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import javax.swing.*;
import java.awt.*;
import java.net.URL;
import java.net.MalformedURLException;
import javax.swing.text.html.*;
import java.awt.event.*;
import java.io.*;
public class DisplayHTML extends JFrame implements ActionListener
Color Background = new Color(100, 135, 220);
Color Buttons = new Color(140, 170, 230);
Container content;
String Keep;
JEditorPane jed;
public DisplayHTML()
UIManager.put("Button.select", Buttons);
content = getContentPane();
content.setBackground(Background);
BorderLayout border = new BorderLayout();
content.setLayout(border);
JPanel Button_Panel = new JPanel();
BorderLayout buttons = new BorderLayout();
Button_Panel.setLayout(buttons);
Button_Panel.setBackground(Background);
JButton Save = new JButton("Save");
Save.setBackground(Buttons);
Save.setToolTipText("Press here to save the results file in HTML format");
Save.addActionListener(this);
Save.setActionCommand("Save");
Button_Panel.add(Save, BorderLayout.WEST);
JButton Quit = new JButton("Quit");
Quit.setBackground(Buttons);
Quit.setToolTipText("Press here to exit the screen and loose results");
Quit.addActionListener(this);
Quit.setActionCommand("Quit");
Button_Panel.add(Quit, BorderLayout.EAST);
content.add(Button_Panel, BorderLayout.NORTH);
String str = new String("file:\\" + System.getProperty("user.dir") + "\\" +"Analysis.html");
try
URL url =new URL(str);
HTMLEditorKit lhekFile = new HTMLEditorKit();
jed =new JEditorPane();
jed.setEditorKit( lhekFile );
jed.setContentType("text/html");
jed.addHyperlinkListener(new javax.swing.event.HyperlinkListener()
{public void hyperlinkUpdate(javax.swing.event.HyperlinkEvent e)
JEditorPane pane = (JEditorPane) e.getSource();
if (e instanceof HTMLFrameHyperlinkEvent)
HTMLFrameHyperlinkEvent evt = (HTMLFrameHyperlinkEvent)e;
HTMLDocument doc = (HTMLDocument)pane.getDocument();
doc.processHTMLFrameHyperlinkEvent(evt);
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try
pane.setPage(e.getURL());
} catch (Throwable t)
{t.printStackTrace();}
jed.setEditable(false);
JScrollPane htmlScroll = new JScrollPane(jed);
htmlScroll.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED);
htmlScroll.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);
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=======================================================================
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/ericI am using request.getParameter(passed variable name)
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WHen I try to pass data from HTML form of
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< form enctype="multipart/form-data" name="theForm"
method="post"
ACTION="http://titan.ssd.loral.com:7778/ifs/jsp-bin/if
-cts/stringsecond.jsp">
The passed value is null. Why?because the jsp most likely does not handling of POST parameters like this.
How can I pass data successfully from this form to
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robert -
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hi all!
I have some problem.
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Hi all!
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Hi together, I become desperate...
I've a jEditorPane on the left in my application with several rows of text. any row should be a hyperlink to a special text, which I want to display in the jtextarea on the right (something like the searchsystem in ms windows, where you see all the topics left and when you choose a topic you see the details on the left).
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try {
URL url = ;
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try {
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url = getClass().getResource(path);
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System.err.println("Failed to open " + path);
url = null;
thanks steinfresser -
Problem with hyperlink when JEditorPane in JDialog
This following code works great:
import javax.swing.*;
import java.awt.event.ActionEvent;
* Created by IntelliJ IDEA.
* User: ilie
* Date: Mar 31, 2005
* Time: 1:21:28 PM
* To change this template use File | Settings | File Templates.
public class Test extends JFrame
public Test() throws Exception
JEditorPane pane = new JEditorPane( );
pane.setEditable( false );
pane.setContentType( "text/html");
pane.setText( "<html><a href=''>a</a>");
getContentPane().add( pane );
pack();
setVisible( true );
public static void main( String args[]) throws Exception
new Test();
}Now... if I change the JFrame to JDialog, when I move the mouse over the links the cursor does not change anymore to a hand.
Is this a bug? I think I do everything right.
Thank you!This code here... also does not work :(
import javax.swing.*;
import java.awt.*;
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getContentPane().add( label );
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Hello,
I am having a JEditorPane with contents as HTML file.. HTML file has many local links [ <a href=#100> </a> .... < a name=100></a> ]. EditorPane setEditable() is false. I have implemented HyperlinkListener to JEditorPane... but evt.getURL() returns "null" value when evt.getEventType() == HyperlinkEvent.EventType.ACTIVATED. So JEditorPane.setPage(URL) is not working...
evt.getDescription() return value as "#100". I am using JDK1.3.1. How can I solve this problem ?
thanks,
rejiYou have to set ID attribute instead of name for destination tag.
Try this
best regards
Stas
import java.awt.*;
import javax.swing.*;
import javax.swing.text.*;
import javax.swing.text.html.*;
import javax.swing.event.*;
public class Test
JFrame frame;
JEditorPane ta;
public static void main(String args[])
new Test();
public Test()
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frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
ta = new JEditorPane();
ta.setEditorKit(new HTMLEditorKit());
ta.setEditable(false);
HyperlinkListener lst=new HyperlinkListener() {
public void hyperlinkUpdate(HyperlinkEvent e) {
if (e.getEventType()==HyperlinkEvent.EventType.ACTIVATED) {
String descr=e.getDescription();
if (descr.length()>0) {
descr=descr.substring(1);
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Element text=doc.getElement(descr);
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ta.addHyperlinkListener(lst);
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Hi there,
i know this has been handled a few times but that doesn�t helped me much...
so i ask it again.
i want to write a really basic HyperlinkListener, but it does not work.
heres my code
HyperlinkListener myListener = new HyperlinkListener()
public void hyperlinkUpdate(HyperlinkEvent he)
try
if(he.getEventType() == HyperlinkEvent.EventType.ACTIVATED)
editorPane.setPage(he.getURL() );
catch(IOException ioe)
System.out.println(ioe);
ioe.printStackTrace();
};why does it not work?
theres no exception, if there would be one i would see in System.out...
any ideas?
thx anyway
cu ErrraddicatorHyperlinkListener works on read-only JEditorPane's.
Look at the documentation: setEditable(false) has to be set.
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