File APIs for Java Developers
Manipulate DOC, XLS, PPT, PDF and many others from your application.
The moose likes JDBC and Relational Databases and the fly likes com.mysql.jdbc.exceptions.jdbc4 error Big Moose Saloon
  Search | Java FAQ | Recent Topics | Flagged Topics | Hot Topics | Zero Replies
Register / Login

Win a copy of Java Interview Guide this week in the Jobs Discussion forum!
JavaRanch » Java Forums » Databases » JDBC and Relational Databases
Bookmark "com.mysql.jdbc.exceptions.jdbc4 error" Watch "com.mysql.jdbc.exceptions.jdbc4 error" New topic

com.mysql.jdbc.exceptions.jdbc4 error

iie o'right

Joined: Apr 15, 2010
Posts: 2

The problem look like this = ). Will describe it in a few steps

1. The program is an applet
2. It connects to the database with the mysql connector
3. Connector is in the ext library in Java folder
4. Applet works perfecly in the AppletViewer in the netbeans
5. It crashes in the browser

I thought it was the connector fault so I put it in the classpath, but not. I got this error:

I've done some research, but without any real results. I've tried also with firewall turned off.

Have to mention that applet works perfecly before reinstalling the system [ day before ].
iie o'right

Joined: Apr 15, 2010
Posts: 2
well it occurs that connection was just fine. There wasn' really any mistakes in the code, I had to edit the java.policy file and add this line:

permission "localhost:3306", "connect, resolve";

thanks for any help I got
I agree. Here's the link:
subject: com.mysql.jdbc.exceptions.jdbc4 error
It's not a secret anymore!