public class RandStrUtil { public final static String EN_UPPER = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"; public final static String EN_LOWER = "abcdefghijklmnopqrstuvwxyz"; public final static String NUM = "1234567890"; //获取大写的方法,其他相同 public static String getEnUpper(int strLen) { Random r=new Random(); String Upper=""; for(int i=0;i<strLen;i++){ Upper+=EN_UPPER.charAt(r.nextInt(EN_UPPER.length())); } return Upper; } }
原文地址:https://www.cnblogs.com/IceBlueBrother/p/8421737.html
时间: 2024-10-28 17:22:23