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Date date1 = new Date(); SimpleDateFormat format1 = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); String dateStr1 = format1.format(date1); System.out.println(dateStr1); System.out.println("========================="); String dateStr2 = "2048-08-22 12:12:12"; SimpleDateFormat format2 = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); Date date2 = format2.parse(dateStr2); System.out.println(date2);