package com.moral.util;
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import lombok.extern.slf4j.Slf4j;
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import org.springframework.beans.factory.annotation.Value;
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import org.springframework.stereotype.Component;
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/**
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* @ClassName TokenEncryptUtils
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* @Description token加密、解密工具
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* @Author 陈凯裕
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* @Date 2021/3/10 11:50
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* @Version TODO
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**/
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@Component
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@Slf4j
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public class TokenEncryptUtils {
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private static String key;
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@Value("${TOKEN.KEY}")
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public void setKey(String tokenKey){
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this.key = tokenKey;
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}
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/**
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* 加密
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* @param str
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* @return
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*/
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public static String encoded(String str) {
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return strToHex(encodedString(str, key));
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}
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/**
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* @Description: 解密
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* @Param: [str]
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* @return: java.lang.String
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* @Author: 陈凯裕
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* @Date: 2021/3/10
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*/
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public static String decoded(String str) {
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String hexStr = null;
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try {
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hexStr = hexStrToStr(str);
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} catch (Exception e) {
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log.error("token解密失败"+e.getMessage());
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}
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if (hexStr != null) {
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hexStr = encodedString(hexStr, key);
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}
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return hexStr;
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}
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/**
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* 转换
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* @param str
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* @param password
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* @return
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*/
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private static String encodedString(String str, String password) {
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char[] pwd = password.toCharArray();
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int pwdLen = pwd.length;
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char[] strArray = str.toCharArray();
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for (int i=0; i<strArray.length; i++) {
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strArray[i] = (char)(strArray[i] ^ pwd[i%pwdLen] ^ pwdLen);
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}
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return new String(strArray);
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}
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/**
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* @Description: 16进制转换字符串
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* @Param: [hexStr]
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* @return: java.lang.String
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* @Author: 陈凯裕
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* @Date: 2021/3/10
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*/
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private static String hexStrToStr(String hexStr) {
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return new String(hexStrToBytes(hexStr));
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}
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/**
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* @Description: 16进制字符串转换字节数组
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* @Param: [hexStr]
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* @return: byte[]
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* @Author: 陈凯裕
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* @Date: 2021/3/10
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*/
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private static byte[] hexStrToBytes(String hexStr) {
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String hex;
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int val;
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byte[] btHexStr = new byte[hexStr.length()/2];
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for (int i=0; i<btHexStr.length; i++) {
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hex = hexStr.substring(2*i, 2*i+2);
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val = Integer.valueOf(hex, 16);
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btHexStr[i] = (byte) val;
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}
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return btHexStr;
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}
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/**
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* @Description: 字节数组转换16进制字符串
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* @Param: [bytesArray]
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* @return: java.lang.String
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* @Author: 陈凯裕
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* @Date: 2021/3/10
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*/
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private static String bytesToHexStr(byte[] bytesArray) {
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StringBuilder builder = new StringBuilder();
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String hexStr;
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for (byte bt : bytesArray) {
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hexStr = Integer.toHexString(bt & 0xFF);
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if (hexStr.length() == 1) {
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builder.append("0");
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builder.append(hexStr);
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}else{
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builder.append(hexStr);
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}
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}
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return builder.toString();
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}
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/**
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* @Description: 字符串转为16进制
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* @Param: [s]
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* @return: java.lang.String
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* @Author: 陈凯裕
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* @Date: 2021/3/10
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*/
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private static String strToHex(String s) {
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return bytesToHexStr(s.getBytes());
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}
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public static void main(String[] args) {
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long currentTime = System.currentTimeMillis();
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System.out.println("加密前的token："+"25."+currentTime);
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String token = encoded("25" +"/"+ currentTime);
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String[] decoded = decoded(token).split("/");
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System.out.println("生成的token："+token);
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for (String s : decoded) {
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System.out.println("解析后的token："+s);
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}
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}
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}
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