java实现随机生成UUID
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public class IDGenerator {
private static long num=0;
/**
* 随机生成UUID
* @return
*/
public static synchronized String getUUID(){
UUID uuid=UUID.randomUUID();
String str = uuid.toString();
String uuidStr=str.replace("-", "");
return uuidStr;
}
/**
* 根据字符串生成固定UUID
* @param name
* @return
*/
public static synchronized String getUUID(String name){
UUID uuid=UUID.nameUUIDFromBytes(name.getBytes());
String str = uuid.toString();
String uuidStr=str.replace("-", "");
return uuidStr;
}
/**
* 根据日期生成长整型id
* @param args
*/
public static synchronized long getLongId(){
String date=DateUtil.getDate2FormatString(new Date(), "yyyyMMddHHmmssS");
System.out.println("原始id="+date);
if(num>=99) num=0l;
++num;
if(num<10) {
date=date+00+num;
}else{
date+=num;
}
return Long.valueOf(date);
}
}
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以上所述就是本文的全部内容了，希望大家能够喜欢。