java AES加密算法

package com.siro.tools;

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

import sun.misc.BASE64Decoder;
import sun.misc.BASE64Encoder;

public class AESPlus {

public static String encrypt(String strKey, String strIn) throws Exception {
SecretKeySpec skeySpec = getKey(strKey);
Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
IvParameterSpec iv = new IvParameterSpec("0102030405060708".getBytes());
cipher.init(Cipher.ENCRYPT_MODE, skeySpec, iv);
byte[] encrypted = cipher.doFinal(strIn.getBytes());

return new BASE64Encoder().encode(encrypted);
}

public static String decrypt(String strKey, String strIn) throws Exception {
SecretKeySpec skeySpec = getKey(strKey);
Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
IvParameterSpec iv = new IvParameterSpec("0102030405060708".getBytes());
cipher.init(Cipher.DECRYPT_MODE, skeySpec, iv);
byte[] encrypted1 = new BASE64Decoder().decodeBuffer(strIn);

byte[] original = cipher.doFinal(encrypted1);
String originalString = new String(original);
return originalString;
}

private static SecretKeySpec getKey(String strKey) throws Exception {
byte[] arrBTmp = strKey.getBytes();
byte[] arrB = new byte[16]; // 创建一个空的16位字节数组（默认值为0）

for (int i = 0; i < arrBTmp.length && i < arrB.length; i++) {
arrB[i] = arrBTmp[i];
}

SecretKeySpec skeySpec = new SecretKeySpec(arrB, "AES");

return skeySpec;
}

public static void main(String[] args) throws Exception {
String Code = "中文ABc123";
String key = "1q2w3e4r";
String codE;

codE = AESPlus.encrypt(key, Code);

System.out.println("原文：" + Code);
System.out.println("密钥：" + key);
System.out.println("密文：" + codE);
System.out.println("解密：" + AESPlus.decrypt(key, codE));
}
}