生成六位数邀请码

蔚落 2021-11-29 16:40 405阅读 0赞

package com.example.utils.utils;
    
    import java.util.Random;
    
    /**
     * @ClassName ShareCodeUtil
     * @Description TODO
     * @Author wushaopei
     * @Date 2019/7/22 11:26
     * @Version 1.0
     */
    public class ShareCodeUtil {
        /** 自定义进制(0,1没有加入,容易与o,l混淆) */
        private static char[] r = new char[] { 'Q', 'w', 'E', '8', 'a', 'S', '2',
                'd', 'Z', 'x', '9', 'c', '7', 'p', 'O', '5', 'i', 'K', '3', 'm',
                'j', 'U', 'f', 'r', '4', 'V', 'y', 'L', 't', 'N', '6', 'b', 'g',
                'H' };
        /** 自动补全组(不能与自定义进制有重复) */
        private static char[] b = new char[] { 'q', 'W', 'e', 'A', 's', 'D', 'z',
                'X', 'C', 'P', 'I', 'k', 'M', 'J', 'u', 'F', 'R', 'v', 'Y', 'T',
                'n', 'B', 'G', 'h' };
    
        /** 自定义进制(0,1没有加入,容易与o,l混淆) */
        private static char[] r1 = new char[] { '0', '1', '2', '3', '4', '5', '6',
                '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j',
                'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
                's', 'y', 'z', 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J',
                'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
                'S', 'Y', 'Z' };
    
        /** 单个分隔符 **/
        private static char b1 = '-';
    
        /** 进制长度 */
        private static final int binLen = r.length;
    
        /**
         * 根据ID生成邀请码
         *
         * @param id
         *            ID
         * @return 邀请码
         */
        public static String toSerialCode(long id) {
            return toSerialCode(id, null);
        }
    
        /**
         * 生成代理编号
         *
         * @return 代理编号
         */
        public static String getProxyCode(long id) {
            char[] buf = new char[32];
            int charPos = 32;
            while ((id / binLen) > 0) {
                int ind = (int) (id % binLen);
                buf[--charPos] = r[ind];
                id /= binLen;
            }
            buf[--charPos] = r1[(int) (id % binLen)];
            String str = new String(buf, charPos, (32 - charPos));
            return str + b1;
        }
    
        /**
         * 生成随机邀请码
         *
         * @return 邀请码
         */
        public static String getRadmonCode(int len) {
            Random rd = new Random();
            int i1 = Math.abs(rd.nextInt(1000000000));
            int i2 = Math.abs(rd.nextInt(1000));
            return toSerialCode(Long.parseLong(i1 + "" + i2), len);
        }
    
        /**
         * 生成随机邀请码
         *
         * @return 邀请码
         */
        public static String getRadmonCodeNew(int len) {
            Random rd = new Random();
            int i1 = Math.abs(rd.nextInt((int) Math.pow(10, len)));
            String resultStr = i1+"";
            while (resultStr.length()<len) {
                resultStr = "0"+resultStr;
            }
            return resultStr;
        }
    
        /**
         * 8xgtgd 根据ID生成指定长度邀请码
         *
         * @param id
         *            ID
         * @return 邀请码
         */
        public static String toSerialCode(long id, Integer len) {
            char[] buf = new char[32];
            int charPos = 32;
            while ((id / binLen) > 0) {
                int ind = (int) (id % binLen);
                buf[--charPos] = r[ind];
                id /= binLen;
            }
            buf[--charPos] = r1[(int) (id % binLen)];
            String str = new String(buf, charPos, (32 - charPos));
            // 是否补全
            if (len != null) {
                // 不够长度的自动随机补全
                if (str.length() < len) {
                    StringBuilder sb = new StringBuilder();
                    Random rnd = new Random();
                    for (int i = 0; i < len - str.length(); i++) {
                        sb.append(b[rnd.nextInt(b.length)]);
                    }
                    str += sb.toString();
                }
            }
            return str;
        }
    
        /**
         * 邀请码转换成ID
         *
         * @param code
         *            邀请码
         * @return id
         */
        public static long codeToId(String code) {
            char[] chs = code.toCharArray();
            long res = 0L;
            for (int i = 0; i < chs.length; i++) {
                int ind = 0;
                for (int j = 0; j < binLen; j++) {
                    if (chs[i] == r[j]) {
                        ind = j;
                        break;
                    }
                }
                boolean bol = false;
    
                for (int j = 0; j < b.length; j++) {
                    if (chs[i] == b[j]) {
                        bol = true;
                        break;
                    }
                }
                if (bol) {
                    break;
                }
                if (i > 0) {
                    res = res * binLen + ind;
                } else {
                    res = ind;
                }
            }
            return res;
        }
    
        public static void main(String[] args) {
            System.out.println(getProxyCode(63233333));
        }
    }

执行测试结果：

1p9tad-