在nodejs服务器上获取ajax发送数据

npm install express body-parser

const express = require('express');
const bodyParser = require('body-parser');

const app = express();
app.use(bodyParser.urlencoded({ extended: false }));
app.use(bodyParser.json());

app.post('/ajax', (req, res) => {
  const data = req.body; // 获取Ajax发送的数据
  // 处理数据逻辑
  res.send('Data received'); // 返回响应
});

const port = 3000;
app.listen(port, () => {
  console.log(`Server is running on port ${port}`);
});