以编程方式从server.xml读取解密的值

import org.dom4j.Document;
import org.dom4j.DocumentException;
import org.dom4j.Element;
import org.dom4j.io.SAXReader;

import javax.crypto.Cipher;
import javax.crypto.spec.SecretKeySpec;
import java.io.File;
import java.io.UnsupportedEncodingException;
import java.nio.charset.StandardCharsets;
import java.util.Base64;

public class ServerXmlReader {
    private static final String ALGORITHM = "AES";
    private static final String SECRET_KEY = "your_secret_key"; // 替换为实际使用的密钥

    public static void main(String[] args) {
        // 读取server.xml文件
        File file = new File("path_to_server.xml"); // 替换为实际的server.xml文件路径
        SAXReader reader = new SAXReader();
        try {
            Document document = reader.read(file);
            Element root = document.getRootElement();

            // 读取需要解密的值
            String encryptedValue = root.elementText("encryptedValue");

            // 解密
            String decryptedValue = decrypt(encryptedValue);

            System.out.println("Decrypted value: " + decryptedValue);
        } catch (DocumentException e) {
            e.printStackTrace();
        }
    }

    // 解密方法
    private static String decrypt(String encryptedValue) {
        try {
            SecretKeySpec secretKeySpec = new SecretKeySpec(SECRET_KEY.getBytes(StandardCharsets.UTF_8), ALGORITHM);
            Cipher cipher = Cipher.getInstance(ALGORITHM);
            cipher.init(Cipher.DECRYPT_MODE, secretKeySpec);
            byte[] decryptedBytes = cipher.doFinal(Base64.getDecoder().decode(encryptedValue));
            return new String(decryptedBytes, StandardCharsets.UTF_8);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }
}