package demo.tool; import cn.hutool.core.date.DateTime; import cn.hutool.core.date.DateUtil; import java.util.Date; public class ToolTests { public static void main(String[] args) { // long t = 1665973324L*1000; long t = Long.parseLong("1665973324000"); System.out.println(System.currentTimeMillis()); //from_unixtime select from_unixtime(1252999488); // Date d = new Date(1252999488000L); Date d = new Date(t); System.out.println(DateUtil.format(d, "yyyy-MM-dd HH:mm:ss")); DateTime parse = DateUtil.parse("2010-01-01 00:00:00"); System.out.println("2010-01-01 00:00:00 === " + parse.getTime()); //1262275200000 } }