Java的AES加密解密

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

import org.junit.Test;
...

@Test
public void testCrossLanguageEncrypt() throws Exception{
    System.out.println(encrypt());
    System.out.println(desEncrypt());
}

public static String encrypt() throws Exception {
    try {
        String data = "Test String";
        String key = "1234567812345678";
        String iv = "1234567812345678";
        Cipher cipher = Cipher.getInstance("AES/CBC/NoPadding");
        int blockSize = cipher.getBlockSize();
        byte[] dataBytes = data.getBytes();
        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 new sun.misc.BASE64Encoder().encode(encrypted);
    } catch (Exception e) {
        e.printStackTrace();
        return null;
    }
}
public static String desEncrypt() throws Exception {
    try
    {
        String data = "2fbwW9+8vPId2/foafZq6Q==";
        String key = "1234567812345678";
        String iv = "1234567812345678";

        byte[] encrypted1 = new sun.misc.BASE64Decoder().decodeBuffer(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);
        return originalString;
    }
    catch (Exception e) {
        e.printStackTrace();
        return null;
    }
}</pre>