解决springboot+jpa+hibernate启动时报错:MySQLSyntaxErrorException: Specified key was too long; max key lengt
错误信息:Causedby:com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException:Specifiedkeywastoolong;maxkeylengthis767bytesatsun.reflect.NativeConstructorAccessorImpl.newInstance0(NativeMethod)atsun.reflect