DateUtil.lastWeek()在sout下是日期格式，put到json就变成时间戳格式了，这是否算是个bug

[hang2ran]

版本情况

JDK版本： openjdk_8_412 hutool版本： 5.8.16，，测试了5.8.29，问题依旧存在

问题描述（包括截图）

1. 复现代码

//获取今日之前一周的时间的订单，用来查询订单
System.out.println(DateUtil.lastWeek());
log.info("测试日期 {}",DateUtil.lastWeek());
param.put("date_start", DateUtil.lastWeek().toString());
param.put("date_startttttt", DateUtil.lastWeek());

//这是工具类内部的实现办法

    public static DateTime lastWeek() {
        return offsetWeek(new DateTime(), -1);
    }

3. 打印日志

   2024-06-28 09:45:21
   09:45:21.044 [xxl-job, JobThread-1-1720143921022] INFO  c.r.f.t.y.j.i.a.yeBianJiaKeDingDanAutoTask - [xxx,80] - 测试日期 2024-06-28 09:45:21
   {"order_grp_id":"","order_cond_date_type":"CREATE_DATE","so_co_serial":"","act_id":[34,15,27,33,16,1,2,3,7,8,9,10,11,5,12,13,31,4,14,28,32,35,38,39,40,36,37],"so_staff_code":"","cell_code":"","date_end":"2024-07-05 09:45:21","owner_district":"100009391551126","prod_id":"97","date_start":"2024-06-28 09:45:21","is_city":"","districtIdList":["100009391551126","100009391551193","100009391551194","100009391551195","100009391551196","100009391551197","1094","1096","1156","1157","1160"],"date_startttttt":1719539121044,"limit":10,"ext_numb":"","cust_name":"","page":1,"state":"","alarm_delay_flag":"","order_id":""}

这种为什么会出现这种情况呢

[looly]

你可以看下JSON规范。

在JSON中，日期使用时间戳表示，你put进去的是Date对象，会转为时间戳。

如果想显示格式化后的日期。可以：

1. 使用toString转为字符串
2. JSONConfig.setDateFormat设置自定义日期格式。