List<?> is converted to List<entity class>

• step:
  
  • 1. for loop traversallist<Object>
  • 2. Use the Object[] array to accept each Object object
  • 3. Take the parameters in Object[] and put them into the entity object
  • 4. Put the entity object into the list <entity class>

String sql = "SELECT * FROM department";
        List<?> list = baseDao.findBySql(sql, 0, 0, null);
        List<Department> departmentList = new ArrayList<Department>();
        for (int i = 0; i < list.size(); i++) {//Object---> Department
            Object[] obj = (Object[]) list.get(i);
            departmentList.add(new Department((Integer) obj[0], (String) obj[1]));
        }
        return departmentList;