mysql的JDBC驱动程序
MySQL Connector/J is the official JDBC driver for MySQL. Online documentation for Connector/J can be found from here.
Connector/J 5.1 includes support for JDBC-4.0 functionality, including:
Ease-of-development features including auto-registration with the DriverManager via the service provider mechanism, standardized Connection validity checks and categorized SQLExceptions based on recoverability/retry-ability and class of the underlying error.
Unwrapping to interfaces that include vendor extensions
Support for XML processing via JAXP interfaces to DOM, SAX and StAX
Support for setting per-connection client information (which can be viewed in the comments section of a query via "SHOW PROCESSLIST" on a Mysql server, or can be extended to support custom persistence of the information via a public interface)
Support for JDBC-4.0 NCHAR, NVARCHAR and NCLOB types

MySQL Connector/J是MySQL官方JDBC驱动程序。
Connector/J 5.1包括JDBC-4.0功能的支持

包括：

易于开发的特点，包括通过自动注册服务提供商机制，标准化的连接有效性检查和分类的SQLExceptions的基础上可恢复/重试能力和一流的底层错误。
DriverManager隔离
解开包括供应商扩展到接口
通过JAXP接口支持用于XML处理DOM，SAX和StAX
支持设置每个连接的客户端信息（可以查看查询的意见通过“SHOW PROCESSLIST的”一个MySQL服务器上，或通过一个公共接口，可扩展，以支持自定义持久性的信息）

JDBC-4.0 NCHAR，NVARCHAR和NCLOB类型的支持

mysql-connector-java是mysql官方的驱动，哈，介绍的翻译可能有点问题。
java环境：http://www.90jianzhi.cn/soft/11139.html