DepLocEncode.java

import java.security.Key;
import java.util.Base64;

import javax.crypto.Cipher;
import javax.crypto.spec.SecretKeySpec;
//import javax.persistence.AttributeConverter;
//import javax.persistence.Converter;

public class DepLocEncode {

	public static void main(String argv[]){
                //setKey("verysecretsecret");
                setKey("tiansftdlstswbcf");
                String encStr = convertToDatabaseColumn(argv[0]);
		System.out.println(encStr);
	}

    private static final String ALGORITHM = "AES/ECB/PKCS5Padding";

    private static byte[] KEY;

    public static void setKey(String secret) {
        KEY = secret.getBytes();
    }

    public static String convertToDatabaseColumn(String entityValue) {
        Key key = new SecretKeySpec(KEY, "AES");
        try {
            Cipher c = Cipher.getInstance(ALGORITHM);
            c.init(Cipher.ENCRYPT_MODE, key);
            String tmpStr = new String(Base64.getEncoder().encode(c.doFinal(entityValue.getBytes())));
            return tmpStr.substring(0,24);
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }

    public String convertToEntityAttribute(String dbValue) {
        Key key = new SecretKeySpec(KEY, "AES");
        try {
            Cipher c = Cipher.getInstance(ALGORITHM);
            c.init(Cipher.DECRYPT_MODE, key);
            return new String(c.doFinal(Base64.getDecoder().decode(dbValue)));
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }

}