Java 实现 Timstamp 和 String 互相转换
1、代码实现
package com.miracle.luna.timestamp;
import java.sql.Timestamp;
import java.text.SimpleDateFormat;
/**
* Created by Miracle Luna on 2020/8/28
*/
public class TestTimestamp {
public static void main(String[] args) {
// 获取当前系统时间的时间戳
Timestamp currentTime = new Timestamp(System.currentTimeMillis());
// 将 Timestamp 类型转为 String 类型
String currentTimeStr = new SimpleDateFormat("YYYY-MM-dd HH:mm:ss").format(currentTime);
System.out.println("==> currentTimeStr: " + currentTimeStr);
// 将 String 类型转为 Timestamp 类型
String timeStr = "2020-08-28 01:56:20";
Timestamp timestamp = Timestamp.valueOf(timeStr);
System.out.println("
--> timestamp: " + timestamp);
// 如果时间格式想显示为:2020-08-28T12:23:34Z
String currentTimeStr_TZ = new SimpleDateFormat("YYYY-MM-dd'T'HH:mm:ss'Z'").format(currentTime);
System.out.println("
==> currentTimeStr_TZ: " + currentTimeStr_TZ);
}
}
2、运行结果
==> currentTimeStr: 2020-08-28 02:04:01
--> timestamp: 2020-08-28 01:56:20.0
==> currentTimeStr_TZ: 2020-08-28T02:04:01Z