package com.espeed.yxy.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(); } }