Android java AES加密解密 完整代码

当然可以！以下是一个示例的完整代码，用于在Android中使用Java实现AES加密和解密：

import javax.crypto.Cipher;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.SecretKeySpec;
import android.util.Base64;

public class AESUtil {
    private static final String AES_ALGORITHM = "AES/CBC/PKCS5Padding";
    private static final String CHARSET = "UTF-8";

    private static byte[] encrypt(byte[] key, byte[] initVector, byte[] value) {
        try {
            SecretKeySpec secretKeySpec = new SecretKeySpec(key, "AES");
            IvParameterSpec ivParameterSpec = new IvParameterSpec(initVector);
            Cipher cipher = Cipher.getInstance(AES_ALGORITHM);
            cipher.init(Cipher.ENCRYPT_MODE, secretKeySpec, ivParameterSpec);
            return cipher.doFinal(value);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }

    private static byte[] decrypt(byte[] key, byte[] initVector, byte[] encrypted) {
        try {
            SecretKeySpec secretKeySpec = new SecretKeySpec(key, "AES");
            IvParameterSpec ivParameterSpec = new IvParameterSpec(initVector);
            Cipher cipher = Cipher.getInstance(AES_ALGORITHM);
            cipher.init(Cipher.DECRYPT_MODE, secretKeySpec, ivParameterSpec);
            return cipher.doFinal(encrypted);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }

    public static String encrypt(String key, String initVector, String value) {
        try {
            byte[] encrypted = encrypt(key.getBytes(CHARSET), initVector.getBytes(CHARSET), value.getBytes(CHARSET));
            return Base64.encodeToString(encrypted, Base64.DEFAULT);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }

    public static String decrypt(String key, String initVector, String encrypted) {
        try {
            byte[] decoded = Base64.decode(encrypted, Base64.DEFAULT);
            byte[] decrypted = decrypt(key.getBytes(CHARSET), initVector.getBytes(CHARSET), decoded);
            return new String(decrypted, CHARSET);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }
}

使用示例：

String key = "0123456789abcdef";  // 16字节的密钥
String initVector = "ABCDEF0123456789";  // 16字节的初始向量

String originalText = "Hello, AES!";
String encryptedText = AESUtil.encrypt(key, initVector, originalText);
String decryptedText = AESUtil.decrypt(key, initVector, encryptedText);

System.out.println("Original Text: " + originalText);
System.out.println("Encrypted Text: " + encryptedText);
System.out.println("Decrypted Text: " + decryptedText);

请注意，这只是一个简单的示例代码，并不涵盖所有的错误处理和最佳实践。在实际使用中，请根据需要进行适当的异常处理和安全性考虑。