public StudentsController(IGetStudentsCommand getCommandStds, IGetStudentCommand getCommandStd, IAddStudentCommand addCommandStd, IDeleteStudentCommand delCommandStd, IEditStudentCommand editCommandStd)
{
_getCommandStds = getCommandStds;
_getCommandStd = getCommandStd;
_addCommandStd = addCommandStd;
_delCommandStd = delCommandStd;
_editCommandStd = editCommandStd;
}