diff --git a/epmet-commons/epmet-commons-tools/src/main/java/com/epmet/commons/tools/utils/AuthCodeUtil.java b/epmet-commons/epmet-commons-tools/src/main/java/com/epmet/commons/tools/utils/AuthCodeUtil.java
new file mode 100644
index 0000000000..0ca2ab6412
--- /dev/null
+++ b/epmet-commons/epmet-commons-tools/src/main/java/com/epmet/commons/tools/utils/AuthCodeUtil.java
@@ -0,0 +1,389 @@
+package com.epmet.commons.tools.utils;
+
+import lombok.extern.slf4j.Slf4j;
+
+import java.io.*;
+import java.nio.charset.StandardCharsets;
+import java.security.MessageDigest;
+import java.security.NoSuchAlgorithmException;
+import java.util.*;
+
+/**
+ * desc: 市北大数据局的工具
+ *
+ * @return
+ * @author LiuJanJun
+ * @date 2022/4/22 5:19 下午
+ */
+@Slf4j
+public class AuthCodeUtil {
+
+ public enum DiscuzAuthcodeMode {
+ Encode, Decode
+ }
+
+ /**
+ *
+ * 从字符串的指定位置截取指定长度的子字符串
+ *
+ * 原字符串
+ * 子字符串的起始位置
+ * 子字符串的长度
+ * 子字符串
+ */
+ public static String CutString(String str, int startIndex, int length) {
+ if (startIndex >= 0) {
+ if (length < 0) {
+ length = length * -1;
+ if (startIndex - length < 0) {
+ length = startIndex;
+ startIndex = 0;
+ } else {
+ startIndex = startIndex - length;
+ }
+ }
+
+ if (startIndex > str.length()) {
+ return "";
+ }
+
+ } else {
+ if (length < 0) {
+ return "";
+ } else {
+ if (length + startIndex > 0) {
+ length = length + startIndex;
+ startIndex = 0;
+ } else {
+ return "";
+ }
+ }
+ }
+
+ if (str.length() - startIndex < length) {
+
+ length = str.length() - startIndex;
+ }
+
+ return str.substring(startIndex, startIndex + length);
+ }
+
+ /**
+ *
+ * 从字符串的指定位置开始截取到字符串结尾的了符串
+ *
+ * 原字符串
+ * 子字符串的起始位置
+ * 子字符串
+ */
+ public static String CutString(String str, int startIndex) {
+ return CutString(str, startIndex, str.length());
+ }
+
+ /**
+ *
+ * 返回文件是否存在
+ *
+ * 文件名
+ * 是否存在
+ */
+ public static boolean FileExists(String filename) {
+ File f = new File(filename);
+ return f.exists();
+ }
+
+ /**
+ *
+ * MD5函数
+ *
+ * 原始字符串
+ * MD5结果
+ */
+ public static String MD5(String str) {
+ StringBuffer sb = new StringBuffer();
+ String part = null;
+ try {
+ MessageDigest md = MessageDigest.getInstance("MD5");
+ byte[] md5 = md.digest(str.getBytes());
+
+ for (int i = 0; i < md5.length; i++) {
+ part = Integer.toHexString(md5[i] & 0xFF);
+ if (part.length() == 1) {
+ part = "0" + part;
+ }
+ sb.append(part);
+ }
+
+ } catch (NoSuchAlgorithmException ex) {
+ }
+ return sb.toString();
+ }
+
+ /**
+ *
+ * 字段串是否为Null或为""(空)
+ *
+ *
+ *
+ */
+ public static boolean StrIsNullOrEmpty(String str) {
+ // if NET1
+ if (str == null || str.trim().equals("")) {
+ return true;
+ }
+
+ return false;
+ }
+
+ /**
+ *
+ * 用于 RC4 处理密码
+ *
+ * 密码字串
+ * 密钥长度，一般为 256
+ *
+ */
+ static private byte[] GetKey(byte[] pass, int kLen) {
+ byte[] mBox = new byte[kLen];
+
+ for (int i = 0; i < kLen; i++) {
+ mBox[i] = (byte) i;
+ }
+
+ int j = 0;
+ for (int i = 0; i < kLen; i++) {
+
+ j = (j + (int) ((mBox[i] + 256) % 256) + pass[i % pass.length])
+ % kLen;
+
+ byte temp = mBox[i];
+ mBox[i] = mBox[j];
+ mBox[j] = temp;
+ }
+
+ return mBox;
+ }
+
+ /**
+ *
+ * 生成随机字符
+ *
+ * 随机字符长度
+ * 随机字符
+ */
+ public static String RandomString(int lens) {
+ char[] CharArray = {'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'j', 'k',
+ 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
+ 'x', 'y', 'z', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9'};
+ int clens = CharArray.length;
+ String sCode = "";
+ Random random = new Random();
+ for (int i = 0; i < lens; i++) {
+ sCode += CharArray[Math.abs(random.nextInt(clens))];
+ }
+ return sCode;
+ }
+
+ /**
+ *
+ * 使用 Discuz authcode 方法对字符串加密
+ *
+ * 原始字符串
+ * 密钥
+ * 加密字串有效时间，单位是秒
+ * 加密结果
+ */
+ public static String authcodeEncode(String source, String key, int expiry) {
+ return authcode(source, key, DiscuzAuthcodeMode.Encode, expiry);
+
+ }
+
+ /**
+ *
+ * 使用 Discuz authcode 方法对字符串加密
+ *
+ * 原始字符串
+ * 密钥
+ * 加密结果
+ */
+ public static String authcodeEncode(String source, String key) {
+ return authcode(source, key, DiscuzAuthcodeMode.Encode, 0);
+
+ }
+
+ /**
+ *
+ * 使用 Discuz authcode 方法对字符串解密
+ *
+ * 原始字符串
+ * 密钥
+ * 解密结果
+ */
+ public static String authcodeDecode(String source, String key) {
+ return authcode(source, key, DiscuzAuthcodeMode.Decode, 0);
+
+ }
+
+ /**
+ *
+ * 使用 变形的 rc4 编码方法对字符串进行加密或者解密
+ *
+ * 原始字符串
+ * 密钥
+ * 操作 加密还是解密
+ * 加密字串过期时间
+ * 加密或者解密后的字符串
+ */
+ private static String authcode(String source, String key,
+ DiscuzAuthcodeMode operation, int expiry) {
+ try {
+ if (source == null || key == null) {
+ return "";
+ }
+
+ int ckey_length = 4;
+ String keya, keyb, keyc, cryptkey, result;
+
+ key = MD5(key);
+
+ keya = MD5(CutString(key, 0, 16));
+
+ keyb = MD5(CutString(key, 16, 16));
+
+ keyc = ckey_length > 0 ? (operation == DiscuzAuthcodeMode.Decode ? CutString(
+ source, 0, ckey_length) : RandomString(ckey_length))
+ : "";
+
+ cryptkey = keya + MD5(keya + keyc);
+
+ if (operation == DiscuzAuthcodeMode.Decode) {
+ byte[] temp;
+
+ temp = Base64.getDecoder().decode(CutString(source, ckey_length));
+ result = new String(RC4(temp, cryptkey));
+ if (CutString(result, 10, 16).equals(
+ CutString(MD5(CutString(result, 26) + keyb), 0, 16))) {
+ return CutString(result, 26);
+ } else {
+ temp = Base64.getDecoder().decode(CutString(source + "=", ckey_length));
+ result = new String(RC4(temp, cryptkey));
+ if (CutString(result, 10, 16)
+ .equals(CutString(
+ MD5(CutString(result, 26) + keyb), 0, 16))) {
+ return CutString(result, 26);
+ } else {
+ temp = Base64.getDecoder().decode(CutString(source + "==",
+ ckey_length));
+ result = new String(RC4(temp, cryptkey));
+ if (CutString(result, 10, 16).equals(
+ CutString(MD5(CutString(result, 26) + keyb), 0,
+ 16))) {
+ return CutString(result, 26);
+ } else {
+ return "2";
+ }
+ }
+ }
+ } else {
+ source = "0000000000" + CutString(MD5(source + keyb), 0, 16)
+ + source;
+
+ byte[] temp = RC4(source.getBytes("GBK"), cryptkey);
+
+ return keyc + Base64.getEncoder().encode(temp);
+
+ }
+ } catch (Exception e) {
+ return "";
+ }
+
+ }
+
+ /**
+ *
+ * RC4 原始算法
+ *
+ * 原始字串数组
+ * 密钥
+ * 处理后的字串数组
+ */
+ private static byte[] RC4(byte[] input, String pass) {
+ if (input == null || pass == null)
+ return null;
+
+ byte[] output = new byte[input.length];
+ byte[] mBox = GetKey(pass.getBytes(), 256);
+
+ // 加密
+ int i = 0;
+ int j = 0;
+
+ for (int offset = 0; offset < input.length; offset++) {
+ i = (i + 1) % mBox.length;
+ j = (j + (int) ((mBox[i] + 256) % 256)) % mBox.length;
+
+ byte temp = mBox[i];
+ mBox[i] = mBox[j];
+ mBox[j] = temp;
+ byte a = input[offset];
+
+ // byte b = mBox[(mBox[i] + mBox[j] % mBox.Length) % mBox.Length];
+ // mBox[j] 一定比 mBox.Length 小，不需要在取模
+ byte b = mBox[(toInt(mBox[i]) + toInt(mBox[j])) % mBox.length];
+
+ output[offset] = (byte) ((int) a ^ (int) toInt(b));
+ }
+
+ return output;
+ }
+
+ public static int toInt(byte b) {
+ return (int) ((b + 256) % 256);
+ }
+
+ public long getUnixTimestamp() {
+ Calendar cal = Calendar.getInstance();
+ return cal.getTimeInMillis() / 1000;
+ }
+
+ public static void main(String[] args) throws IOException {
+ getStr();
+ //readFile02("/Users/liujianjun/Downloads/abc.txt");
+ }
+
+
+ /**
+ * 读取一个文本 一行一行读取
+ *
+ * @param path
+ * @return
+ * @throws IOException
+ */
+ private static void readFile02(String path) throws IOException {
+ // 使用一个字符串集合来存储文本中的路径 ，也可用String []数组
+ List list = new ArrayList();
+ FileInputStream fis = new FileInputStream(path);
+ // 防止路径乱码 如果utf-8 乱码 改GBK eclipse里创建的txt 用UTF-8，在电脑上自己创建的txt 用GBK
+ InputStreamReader isr = new InputStreamReader(fis, StandardCharsets.UTF_8);
+ BufferedReader br = new BufferedReader(isr);
+ String line = "";
+ String result = null;
+ while ((line = br.readLine()) != null) {
+ String key = "TvFwHe6tGA";
+ result = AuthCodeUtil.authcodeDecode(line, key);
+ System.out.println(result);
+ }
+ br.close();
+ isr.close();
+ fis.close();
+ System.out.println("==========end");
+ }
+
+ private static void getStr(){
+ String tel = "4fb1lYySlVqMUaf/LnlBEM1nDZgCKnX+Q52azUGgSLCV0hioBvLFFZoJS1Vu";
+ tel = "a1孙1增勤";
+ String result = AuthCodeUtil.authcodeDecode(tel, "TvFwHe6tGA");
+ System.out.println(result);
+ }
+
+}