实体list转JSONArray对Date数据处理「建议收藏」

大家好，又见面了，我是你们的朋友全栈君。

直接上代码

import net.sf.json.JSONArray;
import net.sf.json.JsonConfig;
import net.sf.json.processors.JsonValueProcessor;
 
import java.math.BigDecimal;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
 
public class JSONDemo01 { 
   
    public static void main(String[] args) { 
   
        List<ZuLinVo> list = new ArrayList<>();
        ZuLinVo zuLinVo = new ZuLinVo("test","330100",new BigDecimal("142.24"),new Date(),new Date());
        list.add(zuLinVo);
        ZuLinVo zuLinVo1 = new ZuLinVo("test","330100",new BigDecimal("142.24"),new Date(),null);
        list.add(zuLinVo1);
        JsonConfig config = new JsonConfig();
        config.registerJsonValueProcessor(Date.class, new JsonValueProcessor() { 
   
            //自定义日期格式
            SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
            @Override
            //处理单个Date对象
            public Object processObjectValue(String propertyName, Object date,JsonConfig config) { 
   
                if(date!=null){ 
   
                    return simpleDateFormat.format(date);
                }else{ 
   
                    return null;
                }
            }
            @Override
            //处理数组中的Date对象
            public Object processArrayValue(Object date, JsonConfig config) { 
   
                if(date!=null){ 
   
                    return simpleDateFormat.format(date);
                }else{ 
   
                    return null;
                }
            }
        });
        JSONArray array = JSONArray.fromObject(list,config);
        System.out.println(array.toString());
    }
}

创建实体类

import java.math.BigDecimal;
import java.util.Date;
 
public class ZuLinVo { 
   
    private String fwzl;//房屋坐落
    private String sscq;//所属城区
    private BigDecimal mj;//面积
    private Date zlksrq;//租赁开始日期
    private Date zljsrq;//租赁结束日期
 
    public String getFwzl() { 
   
        return fwzl;
    }
    public void setFwzl(String fwzl) { 
   
        this.fwzl = fwzl;
    }
    public String getSscq() { 
   
        return sscq;
    }
    public void setSscq(String sscq) { 
   
        this.sscq = sscq;
    }
    public BigDecimal getMj() { 
   
        return mj;
    }
    public void setMj(BigDecimal mj) { 
   
        this.mj = mj;
    }
    public Date getZlksrq() { 
   
        return zlksrq;
    }
    public void setZlksrq(Date zlksrq) { 
   
        this.zlksrq = zlksrq;
    }
    public Date getZljsrq() { 
   
        return zljsrq;
    }
    public void setZljsrq(Date zljsrq) { 
   
        this.zljsrq = zljsrq;
    }
    public ZuLinVo(String fwzl, String sscq, BigDecimal mj, Date zlksrq, Date zljsrq) { 
   
        this.fwzl = fwzl;
        this.sscq = sscq;
        this.mj = mj;
        this.zlksrq = zlksrq;
        this.zljsrq = zljsrq;
    }
}

代码执行控制台数据：实体类中的字段类型为date时进行处理，为空直接返回null，有值进行格式处理