MySql异常：java.lang.UnsupportedClassVersionError: com/mysql/jdbc/Driver : Unsupported major.minor。。。。。

异常java.lang.UnsupportedClassVersionError: com/mysql/jdbc/Driver : Unsupported major.minor version 52

因为jdk版本和mysql驱动不兼容
1、jdk7+老版5.0驱动com/mysql/jdbc/Driver
2、jdk8+新版6.0驱动com/mysql/cj/jdbc/Driver