public class BossUtil { private static Logger logger=Logger.getLogger(BossUtil.class); public static final int nPageSize = 10; public static final String allChar = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"; public static final String letterChar = "abcdefghijkmnopqrstuvwxyzABCDEFGHJKLMNOPQRSTUVWXYZ"; public static final String numberChar = "023456789"; /* * 获取随机字符串 */ 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(); } public static String generateNumber(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(numberChar.charAt(random.nextInt(numberChar.length()))); } return sb.toString(); } public static void main(String[] args) { System.out.print(generateNumber(6)); }
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