Java Applet and MySQL

I'm working on a simple inventory program using a Java applet that connects to a MySQL database. Program works fine if I just compile and run it from Netbeans, but it is throwing an exception once I add an applet wrapper.

The java console is only spitting out "createGUI didn't complete successfully" and not the stacktrace or exception message that I need for troubleshooting. What gives?

I've had TONS of trouble getting the html applet tag to work at all. Is this method antiquated?

Developing an Applet (The Java™ Tutorials > Deployment > Applets)

Code :

<html>
<head>
<title>
Testing Page for Java Applet
</title>
</head>
<body>
<p>Begin body...</p>
 
   <applet code="sqlconnection.appletWrapper.class" width=400 height=400 archive="SQLConnection.jar>
   <hr>
   Replacement Text
   <hr>
   </applet>
 
<p>End body...</p>
</body>
</html>

Code :

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package sqlconnection;
 
/**
 *
 * @author Master
 */
import javax.swing.JApplet;
import javax.swing.SwingUtilities;
 
public class appletWrapper extends JApplet {
    //Called when this applet is loaded into the browser.
    @Override
    public void init() {
        //Execute a job on the event-dispatching thread; creating this applet's GUI.
        try {
            SwingUtilities.invokeAndWait(new Runnable() {
                public void run() {
                    createGUI();
                }
            });
        } catch (Exception e) {
            System.out.println(e.getMessage());
            e.printStackTrace();
            System.out.println(e.toString());
            System.out.println("createGUI didn't complete successfully");
        }
    }
 
    private void createGUI() {
        //Create and set up the content pane.
        System.out.println("inside createGUI");
        MainPanel newContentPane = new MainPanel();
        newContentPane.setOpaque(true); 
        setContentPane(newContentPane);
        System.out.println("leaving createGUI");
    }
}

Re: Java Applet and MySQL

My great thanks to this post. The code given by you is very useful. It is nice combination of Java applet
and MySQL. I find code very useful. I really appreciate your work. I am sure many people will find it very useful.

Re: Java Applet and MySQL

Thanks! I never did get it to work reliably. The program is fantastic in a JFrame, but moving it into an applet really didn't work out for me. What does your HTML look like?

Re: Java Applet and MySQL

Quote:

java console is only spitting out "createGUI didn't complete successfully"

The code shows that it also does a printStackTrace() in the catch block.
The problem would be shown in that stack trace message. What was the full contents of the java console?

Re: Java Applet and MySQL

That's why I was specific about what was in the console. That's it. No stack trace printed. This was a long time ago and I don't even have the applet code anymore.