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