话不多说，直接上代码
import javax.crypto.Cipher;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.SecretKeySpec;
import sun.misc.BASE64Decoder;
import sun.misc.BASE64Encoder;
public class AESUtil {
private static String key="111";
/**
* 加密
* @param content
* @param strKey
* @return
* @throws Exception
*/
public static byte[] encrypt(String content,String strKey ) 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(content.getBytes());
return encrypted;
}
/**
* 解密
* @param strKey
* @param content
* @return
* @throws Exception
*/
public static String decrypt(byte[] content,String strKey ) 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[] original = cipher.doFinal(content);
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;
}
/**
* 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 new BASE64Encoder().encode(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 base64Code.isEmpty() ? null : new BASE64Decoder().decodeBuffer(base64Code);
}
/**
* 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 //加密传String类型，返回String类型
*/
public static String aesEncrypt(String content, String encryptKey) throws Exception {
return base64Encode(encrypt(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 //解密传String类型，返回String类型
* @throws Exception
*/
public static String aesDecrypt(String encryptStr, String decryptKey) throws Exception {
return encryptStr.isEmpty() ? null : decrypt(base64Decode(encryptStr), decryptKey);
}
public static void main(String[] args) throws Exception {
// String encrypt = aesEncrypt("root", key);
// System.out.println(encrypt);
String decrypt = aesDecrypt("+hf8qB4LhS7L7BzBy83bLg==", key);
System.out.println(decrypt);
}
}
如果遇到了BASE64Encoder和BASE64Decoder报错的话，请参考 /liuyangfirst/p/6429913.html
