java.lang.Boolean if the configuration property tinyInt1isBit is set to true (the default) and the storage size is 1, or java.lang.Integer if not.

参考文档：http://docs.oracle.com/cd/E17952_01/refman-5.5-en/connector-j-reference-type-conversions.html

http://dev.mysql.com/doc/refman/5.6/en/connector-j-reference-configuration-properties.html