package com.hcks.cmfds.commons.util;

import java.util.UUID;

/**
 * 
 * @Author 刘厦 (liusha.information@gmail.com)
 * @Date 创建时间：2011-8-3,上午08:41:05
 * @Version 0.0.0
 * 
 *  类说明: 自动生成UUID 唯一标识
 * 
 */
public class GeneralUUIDHelper {

	/**
	 * 
	 * @return
	 */
	public static String newId() {
		return getUUID(false);
	}
	
	/**
	 * 获取UUID 是否包含"-"分隔符
	 * @param separator
	 * @return
	 */
	private static String getUUID(boolean separator) {
		String s = UUID.randomUUID().toString();
		if(separator)
			return s;
		else
			return s.substring(0, 8) + s.substring(9, 13) + s.substring(14, 18) + s.substring(19, 23) + s.substring(24);
	}

	public static void main(String args[]) {
		for (int i = 0; i < 100; i++) {
			System.out.println("GUID+" + i + " = "
					+ GeneralUUIDHelper.newId());
		}
	}

}