mapstruct的用法-dateFormat

Posted 2022-09-01 二十六画生的博客

可先阅读：mapstruct的用法-qualifiedByName使用的类都是这里的。

1 源类

public class AreaPO 

    private String cityName;
    private Integer haveAir;
    private Double pm25;
    private String pm10Str;
    private Date updatedTime;

2 目标类

public class AreaVO 

    private String cityName;
    private Integer haveAir;
    private Double pm25;
    private String pm25Str;
    private Double pm10;
    private String updatedTime;

3 Mapper

    @Mapping(source = "updatedTime", target = "updatedTime", dateFormat = "yyyy-MM-dd HH:mm:ss")
    AreaVO areaPO2areaVO(AreaPO areaPO);

4 Impl

package com.weather.weatherexpert.common.model.mapper;

import com.weather.weatherexpert.common.model.po.AreaPO;
import com.weather.weatherexpert.common.model.vo.AreaVO;
import java.text.SimpleDateFormat;

public class ConvertMapperImpl implements ConvertMapper 
    public ConvertMapperImpl() 
    

    public AreaVO areaPO2areaVO(AreaPO areaPO) 
        if (areaPO == null) 
            return null;
         else 
            AreaVO areaVO = new AreaVO();
            if (areaPO.getUpdatedTime() != null) 
                areaVO.setUpdatedTime((new SimpleDateFormat("yyyy-MM-dd HH:mm:ss")).format(areaPO.getUpdatedTime()));
            

            areaVO.setCityName(areaPO.getCityName());
            areaVO.setHaveAir(areaPO.getHaveAir());
            areaVO.setPm25(areaPO.getPm25());
            return areaVO;
        
    

5 测试

        AreaPO areaPO3 = new AreaPO("忻州", new Date());
        AreaVO areaVO3 =
                ConvertMapper.INSTANCE.areaPO2areaVO(areaPO3);
        logger.info("JSON.toJSONString(areaVO3):" + JSON.toJSONString(areaVO3));

输出：

JSON.toJSONString(areaVO3):"cityName":"忻州","updatedTime":"2018-12-25 21:30:50"

注意类型，是Date转换为String

mapstruct的用法-numberFormat