npm install crypto-js

const CryptoJS = require("crypto-js");

//要加密的数据
var data = {
  name: "李雷",
  age: 18,
};

//秘钥
var aesKey = "e10adc3949ba59abbe56e057f20f883e";

//将秘钥转换成Utf8字节数组
var key = CryptoJS.enc.Utf8.parse(aesKey);

// 加密参数
const option = {
  iv: CryptoJS.enc.Utf8.parse(aesKey.substr(0, 16)),
  mode: CryptoJS.mode.CBC,
  padding: CryptoJS.pad.Pkcs7,
};


//加密
var encrypt = CryptoJS.AES.encrypt(JSON.stringify(data), key, option);
var encryptData = encrypt.toString();
console.log(encryptData);
// rgt5tbJMD7sLe/f0z3Oa843RQ+7yXXlCinVA+pxhyDY=


//解密
var decrypt = CryptoJS.AES.decrypt(encryptData, key, option);
var decryptData = JSON.parse(decrypt.toString(CryptoJS.enc.Utf8)); //解密后的数据
console.log(decryptData);
// { name: '李雷', age: 18 }