MySQL Connectivity Exception: How to Fix "Could Not Create Connection to Database Server"?
- Susan SarandonOriginal
- 2024-11-17 07:49:03581browse
MySQL Connectivity Exception: Could Not Create Connection to Database Server
Problem Description:
While attempting to connect to a MySQL database from Java, you may encounter the exception:
com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Could not create connection to database server.
This exception occurs when trying to establish a connection using older versions of MySQL Connector/J with MySQL 8.
Solution:
To resolve this issue, it is necessary to upgrade to either MySQL Connector/J 5.1.46 or MySQL Connector/J 8.0.11 (recommended). Here's how you can upgrade:
- Uninstall the existing MySQL Connector/J by removing it from your classpath.
-
Download the latest compatible MySQL Connector/J version from the official website:
- For version 5.1.46: https://dev.mysql.com/downloads/file/?id=490974
- For version 8.0.11: https://dev.mysql.com/downloads/file/?id=605127
- Add the downloaded JAR file to your classpath.
- Restart your Java application.
By upgrading to a compatible version of MySQL Connector/J, you can ensure a successful connection to your MySQL 8 database.
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