- public static final String allChar = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
- public static final String letterChar = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
- public static final String numberChar = "0123456789";
- public static String generateString(int length) // 参数为返回随机数的长度
- {
- StringBuffer sb = new StringBuffer();
- Random random = new Random();
- for (int i = 0; i < length; i++) {
- sb.append(allChar.charAt(random.nextInt(allChar.length())));
- }
- return sb.toString();
- }
转载于:https://blog.51cto.com/tinyking/859916