AES前后端，加密\解密实例

1、后端代码

package cn.com.test;

import org.apache.commons.codec.binary.Base64;
import org.apache.commons.lang3.StringUtils;
import sun.misc.BASE64Decoder;

import javax.crypto.Cipher;
import javax.crypto.spec.SecretKeySpec;

public class AESUtil {
    //密钥
    private static final String KEY = "qwertyuiopasdfgh";
    //算法
    private static final String ALGORITHMSTR = "AES/ECB/PKCS5Padding";

    private AESUtil(){

    }

    /**
     * base 64 encode
     * @param bytes 待编码的byte[]
     * @return 编码后的base 64 code
     */
    public static String base64Encode(byte[] bytes){
        return Base64.encodeBase64String(bytes);
    }

    /**
     * base 64 decode
     * @param base64Code 待解码的base 64 code
     * @return 解码后的byte[]
     * @throws Exception
     */
    public static byte[] base64Decode(String base64Code) throws Exception{
        return StringUtils.isEmpty(base64Code) ? null : new BASE64Decoder().decodeBuffer(base64Code);
    }


    /**
     * AES加密
     * @param content 待加密的内容
     * @param encryptKey 加密密钥
     * @return 加密后的byte[]
     * @throws Exception
     */
    public static byte[] aesEncryptToBytes(String content, String encryptKey) throws Exception {
        Cipher cipher = Cipher.getInstance(ALGORITHMSTR);
        cipher.init(Cipher.ENCRYPT_MODE, new SecretKeySpec(encryptKey.getBytes(), "AES"));

        return cipher.doFinal(content.getBytes("utf-8"));
    }




    /**
     * AES解密
     * @param encryptBytes 待解密的byte[]
     * @param decryptKey 解密密钥
     * @return 解密后的String
     * @throws Exception
     */
    public static String aesDecryptByBytes(byte[] encryptBytes, String decryptKey) throws Exception {
        Cipher cipher = Cipher.getInstance(ALGORITHMSTR);
        cipher.init(Cipher.DECRYPT_MODE, new SecretKeySpec(decryptKey.getBytes(), "AES"));
        byte[] decryptBytes = cipher.doFinal(encryptBytes);
        return new String(decryptBytes);
    }


    /**
     * AES加密为base 64 code
     * @param content 待加密的内容
     * @param encryptKey 加密密钥
     * @return 加密后的base 64 code
     * @throws Exception
     */
    public static String aesEncrypt(String content, String encryptKey) throws Exception {
        return base64Encode(aesEncryptToBytes(content, encryptKey));
    }


    /**
     * 将base 64 code AES解密
     * @param encryptStr 待解密的base 64 code
     * @param decryptKey 解密密钥
     * @return 解密后的string
     * @throws Exception
     */
    public static String aesDecrypt(String encryptStr, String decryptKey) throws Exception {
        return StringUtils.isEmpty(encryptStr) ? null : aesDecryptByBytes(base64Decode(encryptStr), decryptKey);
    }

    /**
     * 测试
     */
    public static void main(String[] args) throws Exception {
        String content = "15000000000";
        System.out.println("加密前：" + content);
        System.out.println("加密密钥和解密密钥：" + KEY);
        String encrypt = aesEncrypt(content, KEY);
        System.out.println("加密后：" + encrypt);
        String decrypt = aesDecrypt(encrypt, KEY);
        System.out.println("解密后：" + decrypt);
    }
} 

2、AES.js代码

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3、html测试代码

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<script type="text/javascript" src="./AES.js"></script>
<body>

<script type="text/javascript">
  /**
   * 加密（./AES.js文件）
   * @param word
   * @returns {*}
   */
  function encrypt(word){
    var key = CryptoJS.enc.Utf8.parse("qwertyuiopasdfgh");//密钥与后端保持一致
    var srcs = CryptoJS.enc.Utf8.parse(word);
    var encrypted = CryptoJS.AES.encrypt(srcs, key, {mode:CryptoJS.mode.ECB,padding: CryptoJS.pad.Pkcs7});
    return encrypted.toString();
  }
  console.log("15000000000");
  console.log(encrypt("15000000000"));

  /**
   * 解密
   * @param word
   * @returns {*}
   */
  function decrypt(word){
    var key = CryptoJS.enc.Utf8.parse("qwertyuiopasdfgh");
    var decrypt = CryptoJS.AES.decrypt(word, key, {mode:CryptoJS.mode.ECB,padding: CryptoJS.pad.Pkcs7});
    return CryptoJS.enc.Utf8.stringify(decrypt).toString();
  }
</script>
</body>
</html>