Why Does MySQL JDBC Driver 5.1.33 Throw a 'UTC' Time Zone Error, and How Can I Fix It?

MySQL JDBC Driver 5.1.33: Addressing Time Zone Concerns

In the recent upgrade of MySQL JDBC driver from version 5.1.23 to 5.1.33, users have encountered an unexpected error upon starting their Java applications. This error, which suggests an unrecognized time zone value 'UTC,' has baffled many developers.

Understanding the Issue

The root cause of this issue lies in the introduction of a stricter time zone handling in the newer JDBC driver. Previously, the driver would automatically adjust the time zone to the system's default, but this practice is no longer supported in version 5.1.33. Consequently, when connecting to a database with a non-specific time zone like 'UTC,' the driver is unable to identify the corresponding time zone and throws an error.

Resolving the Issue

To resolve this issue, developers must explicitly specify the serverTimezone property in the JDBC connection string. This property overrides the default time zone handling and allows for the selection of a specific time zone.

Implementing the Solution

To resolve the time zone issue with MySQL JDBC driver 5.1.33, modify the connection string as follows:

jdbc:mysql://localhost/db?useUnicode=true&useJDBCCompliantTimezoneShift=true&useLegacyDatetimeCode=false&serverTimezone=UTC

This connection string explicitly sets the serverTimezone to 'UTC,' ensuring that the driver correctly handles time zone adjustments. By incorporating this modification, developers can overcome the error and establish successful connections to their MySQL databases.

The above is the detailed content of Why Does MySQL JDBC Driver 5.1.33 Throw a 'UTC' Time Zone Error, and How Can I Fix It?. For more information, please follow other related articles on the PHP Chinese website!