Java对象转换的实现方式汇总

TargetObject target = new TargetObject();
target.setPropertyA(source.getPropertyA());
target.setPropertyB(source.getPropertyB());
// ...

TargetObject target = TargetObject.builder()
    .propertyA(source.getPropertyA())
    .propertyB(source.getPropertyB())
    .build();

public class ObjectMapper {
    public static TargetObject map(SourceObject source) {
        TargetObject target = new TargetObject();
        target.setPropertyA(source.getPropertyA());
        target.setPropertyB(source.getPropertyB());
        return target;
    }
}

@Mapper
public interface ObjectMapper {
    ObjectMapper INSTANCE = Mappers.getMapper(ObjectMapper.class);
    @Mapping(source = "propertyA", target = "propertyA")
    @Mapping(source = "propertyB", target = "propertyB")
    TargetObject map(SourceObject source);
}

TargetObject target = new TargetObject();
BeanUtils.copyProperties(source, target);

Mapper mapper = new DozerBeanMapper();
TargetObject target = mapper.map(source, TargetObject.class);

ModelMapper modelMapper = new ModelMapper();
TargetObject target = modelMapper.map(source, TargetObject.class);

Field[] fields = source.getClass().getDeclaredFields();
for (Field field : fields) {
    field.setAccessible(true);
    Object value = field.get(source);
    Field targetField = target.getClass().getDeclaredField(field.getName());
    targetField.setAccessible(true);
    targetField.set(target, value);
}