@Override
public String generate(String bizCode) {
//** 获取今天的日期:yyyyMMdd *//*
String date = com.i2p.util.DateUtils.getCurentDate();
String key = "serial.number:" + date;
//** 自增 *//*
long sequence = this.incr(key);
String seq = SequenceUtils.getSequence(sequence);
StringBuilder sb = new StringBuilder();
sb.append(bizCode).append(seq);
String serial = sb.toString();
return serial;
}
package com.i2p.util;
public class SequenceUtils {
static final int DEFAULT_LENGTH = 4;
public static String getSequence(long seq) {
String str = String.valueOf(seq);
int len = str.length();
if (len >= DEFAULT_LENGTH) {// 取决于业务规模,应该不会到达4
return str;
}
int rest = DEFAULT_LENGTH - len;
StringBuilder sb = new StringBuilder();
for (int i = 0; i < rest; i++) {
sb.append('0');
}
sb.append(str);
return sb.toString();
}
}
/**
* 得到系统当前日期
* "yyyyMMdd"
*/
public static String getCurentDate() {
SimpleDateFormat tempDate = new SimpleDateFormat("yyyyMMdd");
String datetime = tempDate.format(new java.util.Date());
return datetime;
}