登录界面js

document.getElementById('loginForm').addEventListener('submit', function(event) {
    event.preventDefault(); // 阻止默认提交行为
    const formData = new FormData(this);
    fetch('/login', {
        method: 'POST',
        body: formData
    }).then(response => response.json())
      .then(data => {
          if (data.success) {
              window.location.href = '/dashboard';
          } else {
              alert('登录失败，请检查用户名和密码');
          }
      });
});

// 服务器端（Node.js示例）
app.use((req, res, next) => {
    res.header('Access-Control-Allow-Origin', '*');
    res.header('Access-Control-Allow-Headers', 'Origin, X-Requested-With, Content-Type, Accept');
    next();
});

function escapeHtml(unsafe) {
    return unsafe
         .replace(/&/g, "&")
         .replace(/</g, "&lt;")
         .replace(/>/g, "&gt;")
         .replace(/"/g, "&quot;")
         .replace(/'/g, "&#039;");
}