根据时间方式获取Sequence便于数据库操作

package com.linkage.bi.util;/** * 根据时间方式获取Sequence便于数据库操作 */public class DBSequence {private static DBSequence _oSeqGenerator;private long _lID;private DBSequence() {_lID = 0;}public final static synchronized DBSequence getInstance() {if (_oSeqGenerator == null) {_oSeqGenerator = new DBSequence();}return _oSeqGenerator;}    public synchronized String getSequence(){    _lID++;long lCurTime_ = System.currentTimeMillis() - 1000000000;long lTempID_ = _lID + lCurTime_;    return Long.toString(lTempID_);    }public static void main(String args[]){System.out.println(DBSequence.getInstance().getSequence());}}

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