npm install crypto-js

import CryptoJS from 'crypto-js'

const key = CryptoJS.enc.Utf8.parse('IOT80YCbsM8ijmBV') // 十六位十六进制数作为密钥
const iv = CryptoJS.enc.Utf8.parse('WKcJeGjIKGTy3VNW') //十六位十六进制数作为密钥偏移量

export function aesDecrypt(word) {
  const decrypt = CryptoJS.AES.decrypt(word, key, {
    iv,
    mode: CryptoJS.mode.CBC,
    padding: CryptoJS.pad.Pkcs7
  })
  return decrypt.toString(CryptoJS.enc.Utf8)
}

export function aesEncrypt(word) {
  let encrypted = CryptoJS.AES.encrypt(word, key, {
    iv: iv,
    mode: CryptoJS.mode.CBC,
    padding: CryptoJS.pad.Pkcs7
  })
  return encrypted.toString()
}

//key为16位
    private static String KEY = "IOT80YCbsM8ijmBV";

    private static String IV = "WKcJeGjIKGTy3VNW";


    /**
     * 解密方法
     *
     * @param content 要解密的数据
     * @return 解密的结果
     * @throws Exception
     */
    public static String webDecrypt(String content) {
        try {
            SecretKeySpec skeySpec = new SecretKeySpec(KEY.getBytes("ASCII"), "AES");
            Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
            IvParameterSpec iv = new IvParameterSpec(IV.getBytes());
            cipher.init(Cipher.DECRYPT_MODE, skeySpec, iv);
            byte[] encrypted1 = Base64.decodeBase64(content);//先用bAES64解密
            return new String(cipher.doFinal(encrypted1));
        } catch (Exception ex) {
            ex.printStackTrace();
        }
        return null;
    }