【常用工具】java aes对称加密工具类

AES对称加密工具类，代码如下：

package com.sszh.utils.security;import javax.crypto.Cipher;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.SecretKeySpec;/*** AES对称加密工具类*/
public class AesEncryption {
    /*** 加密数据** @param data 明文* @param key 秘钥* @param iv 秘钥*/public static String Encrypt(String data, String key, String iv) throws Exception {
    try {
    Cipher cipher = Cipher.getInstance("AES/CBC/NoPadding");int blockSize = cipher.getBlockSize();byte[] dataBytes = data.getBytes("UTF-8");int plaintextLength = dataBytes.length;if (plaintextLength % blockSize != 0) {
    plaintextLength = plaintextLength+ (blockSize - (plaintextLength % blockSize));}byte[] plaintext = new byte[plaintextLength];System.arraycopy(dataBytes, 0, plaintext, 0, dataBytes.length);SecretKeySpec keyspec = new SecretKeySpec(key.getBytes(), "AES");IvParameterSpec ivspec = new IvParameterSpec(iv.getBytes());cipher.init(Cipher.ENCRYPT_MODE, keyspec, ivspec);byte[] encrypted = cipher.doFinal(plaintext);return Base64Method.EncryptBase64(encrypted);} catch (Exception e) {
    e.printStackTrace();return null;}}/*** 解密数据** @param data 密文* @param key 秘钥* @param iv 秘钥*/public static String Desencrypt(String data, String key, String iv) throws Exception {
    try {
    byte[] encrypted1 = Base64Method.DecryptBase64ForByte(data);Cipher cipher = Cipher.getInstance("AES/CBC/NoPadding");SecretKeySpec keyspec = new SecretKeySpec(key.getBytes(), "AES");IvParameterSpec ivspec = new IvParameterSpec(iv.getBytes());cipher.init(Cipher.DECRYPT_MODE, keyspec, ivspec);byte[] original = cipher.doFinal(encrypted1);String originalString = new String(original, "UTF-8");return originalString;} catch (Exception e) {
    e.printStackTrace();return null;}}
}