Java 時間轉換，java時間轉換

Java 時間轉換，java時間轉換

 

 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      * 將 1467341232351 轉換為 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      * 將指定格式的字串轉化為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 }