java - 将日历java中的月份字符生成到变量中

Question

大家好，

我试图通过使用 Calendar java 创建一个日期变量，以下是我的示例代码:

long day = System.currentTimeMillis();
Calendar cal = Calendar.getInstance();
java.text.SimpleDateFormat month = new java.text.SimpleDateFormat("MMM"); // not sure how to assign this value inside
cal.setTimeInMillis(day);
cal.set(Calendar.HOUR_OF_DAY, 00);
cal.set(Calendar.MINUTE, 00);
cal.set(Calendar.SECOND, 00);
cal.set(Calendar.MILLISECOND, 000);
Date todayDate = cal.getTime();

Timestamp current = new Timestamp(todayDate.getTime());

但是，我得到的current的值是2014-01-13 00:00:00.0。我更喜欢将 01 设置为 Jan。

对此有什么想法吗？

Answer 1

你的意思是这样的？

        long day = System.currentTimeMillis();
        Calendar cal = Calendar.getInstance();
        java.text.SimpleDateFormat month = new java.text.SimpleDateFormat("yyyy-MMM-dd HH:mm:ss:S"); // not sure how to assign this value inside
        cal.setTimeInMillis(day);
        cal.set(Calendar.HOUR_OF_DAY, 00);
        cal.set(Calendar.MINUTE, 00);
        cal.set(Calendar.SECOND, 00);
        cal.set(Calendar.MILLISECOND, 000);
        Date todayDate = cal.getTime();

        Timestamp current = new Timestamp(todayDate.getTime());
        System.out.println(month.format(current));

产量:

2014-Jan-13 00:00:00:0

请检查SimpleDateFormat更多格式选项。