登录验证域名

const jwt = require('jsonwebtoken');

// 生成 JWT Token
function generateToken(userId) {
  const payload = { userId };
  const secretKey = 'your-secret-key';
  const token = jwt.sign(payload, secretKey, { expiresIn: '1h' });
  return token;
}

// 验证 JWT Token
function verifyToken(token) {
  const secretKey = 'your-secret-key';
  try {
    const decoded = jwt.verify(token, secretKey);
    return decoded;
  } catch (error) {
    console.error('Token verification failed:', error);
    return null;
  }
}

// 示例使用
const token = generateToken('user123');
console.log('Generated Token:', token);

const decoded = verifyToken(token);
if (decoded) {
  console.log('Decoded User ID:', decoded.userId);
} else {
  console.log('Token verification failed');
}