| 提交 | 用户 | 时间 | ||
| 0d7d6a | 1 | package cn.stylefeng.guns.base.enums; |
| YY | 2 | |
| 3 | import java.text.SimpleDateFormat; | |
| 4 | ||
| 5 | /** | |
| 6 | * Class to generate timestamps with microsecond precision | |
| 7 | * For example: MicroTimestamp.INSTANCE.get() = "2012-10-21 19:13:45.267128" | |
| 8 | */ | |
| 9 | public enum MicroTimestamp | |
| 10 | { | |
| 11 | INSTANCE ; | |
| 12 | private long startDate ; | |
| 13 | private long startNanoseconds ; | |
| 14 | private SimpleDateFormat dateFormat ; | |
| 15 | ||
| 16 | private MicroTimestamp() | |
| 17 | { this.startDate = System.currentTimeMillis() ; | |
| 18 | this.startNanoseconds = System.nanoTime() ; | |
| 19 | this.dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss.SSS") ; | |
| 20 | } | |
| 21 | ||
| 22 | public String get() | |
| 23 | { long microSeconds = (System.nanoTime() - this.startNanoseconds) / 1000 ; | |
| 24 | long date = this.startDate + (microSeconds/1000) ; | |
| 25 | return this.dateFormat.format(date) + String.format("%03d", microSeconds % 1000) ; | |
| 26 | } | |
| 27 | } | |
