AESUtil详解编程语言

public class AESUtil { 
 
        /** 
         * 密钥算法 
         */ 
        private static final String ALGORITHM = "AES"; 
        /** 
         * 加解密算法/工作模式/填充方式 
         */ 
        private static final String ALGORITHM_MODE_PADDING = "AES/ECB/PKCS5Padding"; 
        /** 
         * 生成key 
         */ 
        private static SecretKeySpec key = new SecretKeySpec("3d6ecd1d264b7224686af2c0a73f8d9c".getBytes(), ALGORITHM); 
 
       /** 
         * AES加密 
         * 
         * @param data 
         * @return 
         * @throws Exception 
         */ 
        public static String encryptData(String data) throws Exception { 
            // 创建密码器 
            Cipher cipher = Cipher.getInstance(ALGORITHM_MODE_PADDING); 
            // 初始化 
            cipher.init(Cipher.ENCRYPT_MODE, key); 
            return new String(Base64.encode(cipher.doFinal(data.getBytes()))); 
        } 
    static SecretKey secretKey; 
    /** 
         * AES解密 
         * 
         * @param data 待解密的数据 
         * @param keyMd5 解密的key 
         * @return 
         * @throws Exception 
         */ 
        public static String decryptData(String data,String keyMd5) throws Exception { 
            Cipher cipher = Cipher.getInstance(ALGORITHM_MODE_PADDING); 
            secretKey = new SecretKeySpec(keyMd5.getBytes("utf-8"), "AES"); 
 
            cipher.init(Cipher.DECRYPT_MODE, secretKey);//使用解密模式初始化 密钥 
            java.util.Base64.Decoder base64 = java.util.Base64.getDecoder(); 
            byte[] decrypt = cipher.doFinal(base64.decode(data)); 
            return new String(decrypt, "utf-8"); 
        } 
 
        public static void main(String[] args) throws Exception { 
            String data = "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"; 
            String keyMd5 = "3d6ecd1d264b7d04686af2c0173f8d9c"; 
            System.out.println(decryptData(data,keyMd5)); 
 
        } 
    }