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104 lines
2.5 KiB
104 lines
2.5 KiB
package com.whn.hellospring.utils;
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import org.springframework.beans.BeanUtils;
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import java.util.ArrayList;
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import java.util.List;
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/**
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* DO，DOT模型转换
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*/
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public class DO2DTOUtil {
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private static DO2DTOUtil instance = new DO2DTOUtil();
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private DO2DTOUtil(){}
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public static DO2DTOUtil getInstance(){
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return instance;
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}
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/**
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* DTO集合转换成DO集合
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*
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* @param dtoList DTO 对象集合
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* @param doClass DO 类型
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* @return doClass类型的集合
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*/
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public Object dtoListToDoList(Object dtoList, Class doClass) {
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if (dtoList == null) {
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return null;
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}
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List<Object> doList = new ArrayList<>();
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for (Object dto : (List) dtoList) {
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Object i = dtoToDo(dto, doClass);
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if (i != null) {
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doList.add(i);
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}
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}
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return doList;
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}
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/**
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* DTO模型转换成DO
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*
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* @param objectDto DTO 对象
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* @param doClass DO 类型
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* @return doClass类型的对象
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*/
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public Object dtoToDo(Object objectDto, Class doClass) {
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if (objectDto == null) {
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return null;
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}
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Object objectDo = null;
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try {
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objectDo = doClass.newInstance();
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BeanUtils.copyProperties(objectDto, objectDo);
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} catch (Exception ex) {
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ex.printStackTrace();
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}
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return objectDo;
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}
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/**
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* DO集合转换成DTO集合
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*
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* @param doList DO 对象集合
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* @param dtoClass DTO 类型
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* @return dtoClass类型的集合
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*/
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public Object doListToDtoList(Object doList, Class dtoClass) {
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if (doList == null) {
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return null;
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}
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List<Object> dtoList = new ArrayList<>();
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for (Object i : (List) doList) {
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Object dto = doToDto(i, dtoClass);
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if (dto != null) {
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dtoList.add(dto);
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}
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}
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return dtoList;
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}
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/**
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* DO转换成DTO
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*
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* @param objectDo DO 对象
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* @param dtoClass DTO 类型
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* @return dtoClass类型的对象
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*/
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public Object doToDto(Object objectDo, Class dtoClass) {
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if (objectDo == null) {
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return null;
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}
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Object objectDto = null;
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try {
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objectDto = dtoClass.newInstance();
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BeanUtils.copyProperties(objectDo, objectDto);
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} catch (Exception ex) {
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ex.printStackTrace();
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}
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return objectDto;
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}
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}
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