package com.javaweb.platform.utils;
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import java.util.Random;
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import cn.hutool.cache.CacheUtil;
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import cn.hutool.cache.impl.TimedCache;
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public class CaptCodeUtils {
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private static long timeout = 1000* 60 ;//1分钟过期
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//用户缓存hash表
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public static TimedCache<String, String> captcodeCache = CacheUtil.newTimedCache(timeout);
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public static String verifyCode(){
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int a = 1234567890;
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String b ="abcdefghijklmnopqrstuvwxyz";
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String B=b.toUpperCase();
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String c=a+b+B;
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char[] d=c.toCharArray();
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Random random = new Random();
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String f="";
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for (int k = 0; k < 6; k++) {
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int index = random.nextInt(d.length);
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f+=d[index];
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}
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//添加缓存
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setCahce(f);
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return f;
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}
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//设置
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public static void setCahce(String code){
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captcodeCache.put(code, code, timeout);
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}
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//验证码是否存在
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public static boolean isExistCode(String code){
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String s = captcodeCache.get(code, false);
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if(s !=null){
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return true;
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}
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return false;
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}
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//删除
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public static void remove(String code){
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captcodeCache.remove(code);
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}
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//清空
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public static void clear(){
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captcodeCache.clear();
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}
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}
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