在Node.js中接收来自POST请求的JSON响应

const http = require('http');
const url = require('url');

const server = http.createServer((req, res) => {
  // 请求处理代码
});

const reqUrl = url.parse(req.url, true);
const reqMethod = req.method;

if (reqMethod === 'POST' && reqUrl.pathname === '/path') {
  let requestData = '';
  
  req.on('data', chunk => {
    requestData += chunk;
  });
  
  req.on('end', () => {
    const jsonData = JSON.parse(requestData);
    // 对接收到的JSON数据进行处理
    // ...
    
    // 构造响应数据
    const responseData = {
      message: '成功接收到JSON数据',
      data: jsonData
    };
    
    res.setHeader('Content-Type', 'application/json');
    res.statusCode = 200;
    res.end(JSON.stringify(responseData));
  });
}

const port = 3000; // 服务器监听的端口号

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