将值从表单传递到另一个页面

<form id="myForm" action="anotherPage.html" method="POST">
  <input type="text" name="username" placeholder="Username">
  <input type="password" name="password" placeholder="Password">
  <button type="submit">Submit</button>
</form>

<script>
  document.getElementById("myForm").addEventListener("submit", function(event) {
    event.preventDefault(); // 阻止表单默认提交行为

    var form = event.target;
    var username = form.elements.username.value;
    var password = form.elements.password.value;

    // 将值作为参数添加到URL中
    var url = form.action + "?username=" + encodeURIComponent(username) + "&password=" + encodeURIComponent(password);

    // 跳转到另一个页面
    window.location.href = url;
  });
</script>

const express = require('express');
const app = express();

app.post('/anotherPage.html', (req, res) => {
  const username = req.body.username;
  const password = req.body.password;

  // 在这里处理表单数据，例如存储到数据库或进行其他操作

  res.send('Form data received');
});

app.listen(3000, () => {
  console.log('Server started on port 3000');
});