MapStruct处理Java中实体与模型间不匹配属性转换的方法

public class User {
  private Integer id;
  private String name;
  private double account;
  private boolean married;
// setters, getters, toString()
}

public class Employee {
  private int id;
  private String ename;
  private String position;
  private String married;
// setters, getters, toString()
}

@Mapper
public interface UserMapper {
  UserMapper INSTANCE = Mappers.getMapper(UserMapper.class);
  Employee userToEmployee(User user);
  User employeeToUser(Employee employee);
}

@Mapper
public interface UserMapper {
  UserMapper INSTANCE = Mappers.getMapper(UserMapper.class);
  @Mappings({
    @Mapping(source="name", target="ename")
  })
  Employee userToEmployee(User user);
  @Mappings({
    @Mapping(source="ename", target="name")
  })
  User employeeToUser(Employee employee);
}

public class UserTransform {
  public String booleanToString(boolean value){
    if(value){
      return "Y";
    }
    return "N";
  }
  public boolean strToBoolean(String str){
    if ("Y".equals(str)) {
      return true;
    }
    return false;
  }
}

@Mapper(uses = UserTransform.class)
public interface UserMapper {...}

public class MidTest {
  @Test
  public void midTest(){
    User user = new User();
    user.setId(125);
    user.setName("Lee");
    user.setMarried(true);
    Employee e = UserMapper.INSTANCE.userToEmployee(user);
    System.out.println(e);
  }
  @Test
  public void midTest2(){
    Employee e = new Employee();
    e.setId(222);
    e.setEname("Chao");
    e.setMarried("N");
    User u = UserMapper.INSTANCE.employeeToUser(e);
    System.out.println(u);
  }
}