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 mysql.jdbc.exceptions.jdbc4 Communication link error Big Moose Saloon
  Search | Java FAQ | Recent Topics | Flagged Topics | Hot Topics | Zero Replies
Register / Login
JavaRanch » Java Forums » Databases » JDBC and Relational Databases
Bookmark "mysql.jdbc.exceptions.jdbc4 Communication link error" Watch "mysql.jdbc.exceptions.jdbc4 Communication link error" New topic

mysql.jdbc.exceptions.jdbc4 Communication link error

Duran Harris
Ranch Hand

Joined: Nov 09, 2008
Posts: 608

Hi all,
I have downloaded the MySQL Connector J and put it in apache\common\lib as well as on the classpath.I have not yet managed to use JDBC because I continue getting a com.mysql.jdbc.exception.jdbc4 Communication link error....
I have configured resources inside my web.xml and have double checked that the usernames,passwords,tablenames etc are correct.....
What else should I check??

===>SCJP 1.5(72%)<===
Kevin Chen

Joined: Nov 02, 2008
Posts: 5
Is there more detail information such as exception stack?

Free as in Freedom
I agree. Here's the link:
subject: mysql.jdbc.exceptions.jdbc4 Communication link error
It's not a secret anymore!