CODEWITHSUNDEEP
javaappletlocalhost
daneshjai
daneshjai

Reputation: 878

Local Applet Security Exception

I'm trying to run a basic hello world Java applet in my browser, but I keep getting "Application Blocked by Security Settings" with the following message:

SecurityException: Your security settings have blocked a local application from running

I tried changing the security settings through the Java Control Panel, but there is no slider, just certificates.

I get the same error when trying to open the .html file in other browsers.

Applet code:

import javax.swing.*;
import java.awt.*;

public class HelloWorldApp extends JApplet
{
    public void init()
    {
        JLabel label = new JLabel("Hello World");
        add(label);
    }
}

HTML

<!DOCTYPE html>
<html>
<head></head>    
<body>    
   <applet code="HelloWorldApp.class" width="300" height="100"></applet>    
</body>    
</html>

Question: How can I get the applet to work? Or rather, how can I change the security settings to allow the applet to run locally, if that is the issue and not something else?

Upvotes: 5

Views: 21864

Answers (3)

user2801585
user2801585

Reputation: 1

"Use a web server to test the examples in this lesson. The use of local applets is not recommended, and local applets are blocked when the security level setting in the Java Control Panel is set to High or Very High."

Upvotes: 0

rockstar
rockstar

Reputation: 3538

I faced the exact same issue today . The new Java has improved upon its security and the following article talks about it in detail .

I am surprised that you didnt see the slider on your Java Control Panel . I was able to change the setting to MEDIUM from HIGH and then it works for me .

Location of the Java Control Panel

Changing security settings using the Java Control Panel

Upvotes: 0

daneshjai
daneshjai

Reputation: 878

Okay, after deleting Java 6 and 7 and re-installing 7 and restarting the computer, it now works. Did not know I had to delete the older version even after I updated to 7 as I thought that was done automatically on update.

This site provided guidance. My bad for such a simple question.

Upvotes: 1

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