package com.espeed.tool;

import java.util.Random;

/***
 * 
 * @author xieyong
 * 获取随即码
 */
public class GetRandom {

	//生成随机码
	 public static String getRandomString(int length) throws Exception{ //length表示生成字符串的长度
	        String base = "abcdefghijklmnopqrstuvwxyz0123456789";   //生成字符串从此序列中取
	        Random random = new Random();   
	        StringBuffer sb = new StringBuffer();   
	        for (int i = 0; i < length; i++) {   
	            int number = random.nextInt(base.length());   
	            sb.append(base.charAt(number));   
	        }   
	        return sb.toString();   
	     }
}