cn.m1c.frame.utils.UUIDGenerator Maven / Gradle / Ivy
package cn.m1c.frame.utils;
import java.util.UUID;
/**
* 2016年7月29日 m1c id generator tools
* @author phil([email protected],m1c softCo.,ltd)
* @version lannie
*/
public class UUIDGenerator {
public UUIDGenerator() {
}
public static String getUUID() {
UUID uuid = UUID.randomUUID();
String str = uuid.toString();
// 去掉"-"符号
return str.substring(0, 8) + str.substring(9, 13) + str.substring(14, 18) + str.substring(19, 23) + str.substring(24);
}
//获得指定数量的UUID
public static String[] getUUID(int number) {
if (number < 1) {
return null;
}
String[] ss = new String[number];
for (int i = 0; i < number; i++) {
ss[i] = getUUID();
}
return ss;
}
public static void main(String[] args) {
String[] ss = getUUID(10);
for (int i = 0; i < ss.length; i++) {
System.out.println("ss["+i+"]====="+ss[i].length());
}
}
}