java使用AES/CBC/PKCS5Padding加密

好的，针对您的问题，我可以给出以下代码示例：

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

public class AESUtil {

    private static final String ALGORITHM = "AES/CBC/PKCS5Padding";
    private static final String CHARSET = "UTF-8";

    public static String encrypt(String data, String key, String iv) throws Exception {
        Cipher cipher = Cipher.getInstance(ALGORITHM);
        SecretKeySpec skeySpec = new SecretKeySpec(key.getBytes(CHARSET), "AES");
        IvParameterSpec ivSpec = new IvParameterSpec(iv.getBytes(CHARSET));
        cipher.init(Cipher.ENCRYPT_MODE, skeySpec, ivSpec);
        byte[] encrypted = cipher.doFinal(data.getBytes());
        return Base64.getEncoder().encodeToString(encrypted);
    }

    public static String decrypt(String data, String key, String iv) throws Exception {
        Cipher cipher = Cipher.getInstance(ALGORITHM);
        SecretKeySpec skeySpec = new SecretKeySpec(key.getBytes(CHARSET), "AES");
        IvParameterSpec ivSpec = new IvParameterSpec(iv.getBytes(CHARSET));
        cipher.init(Cipher.DECRYPT_MODE, skeySpec, ivSpec);
        byte[] decrypted = cipher.doFinal(Base64.getDecoder().decode(data));
        return new String(decrypted, CHARSET);
    }
}

其中，`encrypt` 方法用于加密数据，`decrypt` 方法用于解密数据。需要传入三个参数：待加密/解密的数据、密钥和向量。