Java 如何将ArrayList数据映射到DTO
根据要求,我解析了一个XML文件,并将数据设置为以下两个DTO类:Java 如何将ArrayList数据映射到DTO,java,Java,根据要求,我解析了一个XML文件,并将数据设置为以下两个DTO类: public class DetailsDTO implements java.io.Serializable { private String userid; private String accountnum; private Customer customer; // setters and getters public class Customer implements Serializabl
public class DetailsDTO implements java.io.Serializable {
private String userid;
private String accountnum;
private Customer customer;
// setters and getters
public class Customer implements Serializable
{
private String street;
private String country;
// setters and getters
在将Customer
类的数据添加到DetailsDTO
之后,我将这个DetailsDTO
添加到ArrayList
中,如图所示:
List list = new ArrayList();
// and added these DetailsDTO class to an ArrayList
list.add(detailsDTO)
现在有一个主DTO,名为WholeDetails
,它由在各种DTO类中定义的所有变量组成,如图所示
class WholeDetails
{
private String userid;
private String accountnum;
private String street;
private String country;
}
现在,如您所见,所有数据都可以在ArrayList
中保存
如何从
ArrayList
中提取内容并将其映射到所有详细信息
List<DetailsDTO> list = new ArrayList<DetailsDTO>();
// and added these DetailsDTO class to an ArrayList
list.add(detailsDTO);
List<WholeDetails> wholeDTOList = new ArrayList<WholeDetails>();
for(DetailsDTO dto:list){
WholeDetails whole = new WholeDetails();
whole.setUserid(dto.getUserid());
whole.setAccountNum(dto.getAccountNum());
whole.setStreet(dto.getCustomer().getStreet());
whole.setCountry(dto.getCustomer().getCountry());
wholeDTOList.add(whole);
}
List List=new ArrayList();
//并将这些DetailsTo类添加到ArrayList中
列表。添加(详细信息到);
List wholeDTOList=new ArrayList();
对于(DetailsDTO dto:list){
WholeDetails整体=新的WholeDetails();
setUserid(dto.getUserid());
setAccountNum(dto.getAccountNum());
整条.setStreet(dto.getCustomer().getStreet());
.setCountry(dto.getCustomer().getCountry());
整体列表。添加(整体);
}
如果您希望它更简短,您可以创建一个适配器类,将DetailsDTO
映射到WholeDetailsDTO
,并将结果对象添加到列表中非常感谢您的帮助,今天您救了我不眠之夜。