Java中获取GUID码

import java.util.UUID;

public class GetGuid
{
	/**
	 * 获取guid码
	 * @param args
	 */
	public static void main(String[] args) {
		  UUID uuid = UUID.randomUUID();
		  String a = uuid.toString();		  
		  System.out.println(a);  
		  System.out.println(a.length());
		 }
}