Java 时间转换

 1 import java.text.ParseException; 2 import java.text.SimpleDateFormat; 3 import java.util.Calendar; 4 import java.util.Date; 5  6 /** 7  * Created by Edward on 2016/6/30. 8 */ 9 public class TimeUtil {10 11 12   /**13    * 将 1467341232351 转换为 指定格式 "yyyy-MM-dd HH:mm:ss.SSS"14    * @param time    "1467342217645"15    * @param pattern   "yyyy-MM-dd HH:mm:ss.SSS"16    * @return      2016-07-01 11:03:37.64517   */18 19   public static String parseLongTime2String(String time, String pattern){20     Calendar calendar = Calendar.getInstance();21     calendar.setTimeInMillis(Long.valueOf(time));22     return new SimpleDateFormat(pattern).format(calendar.getTime());23   }24 25 26   /**27    * 将指定格式的字符串转化为long28    * @param time  "2016-07-01 10:52:41.792"29    * @param pattern "yyyy-MM-dd HH:mm:ss.SSS"30    * @return     146734156179231   */32   public static long parseString2LongTime(String time, String pattern)33   {34     Date date = null;35     try {36       date = new SimpleDateFormat(pattern).parse(time);37     } catch (ParseException e) {38       e.printStackTrace();39     }40     return date.getTime();41   }42 43   public static void main(String[] args)44   {45     Calendar calendar = Calendar.getInstance();46 47     System.out.println(calendar.getTimeInMillis());48 49     System.out.println(TimeUtil.parseLongTime2String(String.valueOf(calendar.getTimeInMillis()),"yyyy-MM-dd HH:mm:ss.SSS"));50 51     System.out.println(TimeUtil.parseString2LongTime("2016-07-01 10:52:41.792","yyyy-MM-dd HH:mm:ss.SSS"));52 53   }54 55 }

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原标题：Java 时间转换

关键词：JAVA