使用AutoMapper进行嵌套对象映射

Question

所以我在使用automapper时遇到了这个问题。我相信我很接近，一定要错过一些东西。

我有一个包含Address类和位置类的Employee类：

internal class Employee : IPerson
{
    public int Id { get; set; }
    public string FirstName { get; set; }
    public string MiddleName { get; set; }
    public Address Address { get; set; }
    public Position Position { get; set; }

}

我当然希望使用AutoMapper映射到Dto：

public class EmployeeDto
{
    public int Id { get; set; }
    public string FirstName { get; set; }
    public string MiddleName { get; set; }
    public AddressDto Address { get; set; }
    public PositionDto Position { get; set; }
}

我相信我明白我需要配置所有预期的映射：

public static void RegisterMappings()
    {
        Mapper.CreateMap<Address,  AddressDto>();
        Mapper.CreateMap<Position, PositionDto>();
        Mapper.CreateMap<Employee, EmployeeDto>();

        Mapper.AssertConfigurationIsValid();
    }

我这样调用代码：

 public EmployeeDto GetEmployee(int personId)
    {
        EmployeeDto dto = null;
        try
        {
            var employee = _employeeDataDao.GetEmployee(personId);

            dto = Mapper.Map<Employee,EmployeeDto>(employee);

        }
        catch (Exception ex)
        {
            Logger.Error(ex, "Get Employee failed : {0}", ex.Message);
        }
        return dto;

    }

这几乎可以正常工作，除了地址和位置项都是空的：返回的员工已将所有数据正确存储在员工类中！

员工类映射得很好。如何获取地图和位置信息？

更新我的GetEmployee电话

public Employee GetEmployee(int personId)
    {

        using (var connection = myconnection)
        {
            const string storedProcedure = "sproc";
            var result = connection.Query<Employee, Address, Position, Employee>(storedProcedure,
                (employee, address, position) =>
                {
                    employee.Address = address;
                    employee.Position = position;
                    return employee;
                },
                new {PersonId = personId}, splitOn: "HomeAddressLine1, PositionTitle",
                commandType: CommandType.StoredProcedure).FirstOrDefault();
            return result;
        }
    }