网站域名的登录通常涉及到DNS解析、Web服务器配置以及用户身份验证等多个步骤。下面我会详细解释这个过程:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Login</title>
</head>
<body>
<form id="loginForm">
<label for="username">Username:</label>
<input type="text" id="username" name="username">
<br>
<label for="password">Password:</label>
<input type="password" id="password" name="password">
<br>
<button type="submit">Login</button>
</form>
<script>
document.getElementById('loginForm').addEventListener('submit', function(event) {
event.preventDefault();
const username = document.getElementById('username').value;
const password = document.getElementById('password').value;
fetch('/login', {
method: 'POST',
headers: {
'Content-Type': 'application/json'
},
body: JSON.stringify({ username, password })
})
.then(response => response.json())
.then(data => {
if (data.success) {
alert('Login successful!');
} else {
alert('Login failed: ' + data.message);
}
})
.catch(error => console.error('Error:', error));
});
</script>
</body>
</html>
const express = require('express');
const bodyParser = require('body-parser');
const app = express();
app.use(bodyParser.json());
app.post('/login', (req, res) => {
const { username, password } = req.body;
// 这里应该进行实际的用户验证
if (username === 'admin' && password === 'password') {
res.json({ success: true });
} else {
res.json({ success: false, message: 'Invalid credentials' });
}
});
app.listen(3000, () => {
console.log('Server is running on port 3000');
});
希望这些信息对你有所帮助!如果有其他具体问题,请随时提问。
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