<!DOCTYPE html> <html> <head> <title>注册页面</title> <link rel="stylesheet" type="text/css" href="../zhuce/zhuce1.css"> </head> <body> <h2>用户注册</h2> <form method="post" action='http://localhost:3000/register' id="registration-form"> <label for="username">用户名:</label> <input type="text" id="name" name="name" placeholder="请输入用户名" pattern="^[a-zA-Z0-9_]{3,20}$" required> <label for="email">邮箱:</label> <input type="email" id="email" name="email" placeholder="请输入邮箱地址" required> <label for="password">密码:</label> <input type="password" id="password" name="password" placeholder="请输入密码" pattern="^(?=.*\d)(?=.*[a-z])(?=.*[A-Z])(?=.*[a-zA-Z]).{8,}$" required> <input type="submit" value="注册"> </form> <script> document.addEventListener('DOMContentLoaded', function () { const form = document.getElementById('registration-form'); form.addEventListener('submit', function (event) { event.preventDefault(); // 阻止表单提交 const name = document.getElementById('name').value; const password = document.getElementById('password').value; const email = document.getElementById('email').value; // 创建一个新的XMLHttpRequest对象 const xhr = new XMLHttpRequest(); // 设置POST请求的URL xhr.open('POST', 'Access-Control-Allow-Origin:http://localhost:3000/register', true); // 设置请求头 xhr.setRequestHeader('Content-type', 'application/x-www-form-urlencoded'); // 构建要发送的数据 const data = `name=${encodeURIComponent(name)}&email=${encodeURIComponent(email)}&password=${encodeURIComponent(password)}`; // 处理请求完成时的回调 xhr.onload = function () { if (xhr.status === 200) { console.log('注册成功'); // 可以在这里执行其他处理，如显示成功消息或跳转到其他页面 } else { console.log('注册失败'); // 可以在这里执行其他处理，如显示错误消息或进行其他错误处理 } }; // 发送请求 xhr.send(data); console.log(data); }); }); </script> </body> </html>

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