Discussion on input parameters of mybatis

There are two input parameters ,prameterType and prameterMap( Abandoned , In the early ibatis How to do it )

Use only prameterType

situation

（1） The parameter is a simple type ( Single value )

Such as ： Search the Department information according to the number , The input parameter is a number ,int type , Simple type

Place holder #{ Write at will }

（2） When the parameter is an entity type

Such as ： Add a department , The input parameters are Dept object , Placeholders must be written as #{ Property name of entity class }

（3） Parameter is Map type

requirement ： Placeholder must be map Medium key

demand ： Paging search Department