对于任何想知道如何在不安装web框架的情况下完成这个微不足道的任务的人，我设法把它放在一起。几乎没有生产准备，但它似乎工作。

function handler(req, res) {
    var POST = {};
    if (req.method == 'POST') {
        req.on('data', function(data) {
            data = data.toString();
            data = data.split('&');
            for (var i = 0; i < data.length; i++) {
                var _data = data[i].split("=");
                POST[_data[0]] = _data[1];
            }
            console.log(POST);
        })
    }
}

如果你将数据编码为JSON，然后将其发送到Node.js，会更简洁。

function (req, res) {
    if (req.method == 'POST') {
        var jsonString = '';

        req.on('data', function (data) {
            jsonString += data;
        });

        req.on('end', function () {
            console.log(JSON.parse(jsonString));
        });
    }
}

你可以使用body-parser, Node.js的body解析中间件。

第一个负载体解析器

$ npm install body-parser --save

一些示例代码

var express = require('express')
var bodyParser = require('body-parser')

var app = express()

app.use(bodyParser.urlencoded({ extended: false }))
app.use(bodyParser.json())


app.use(function (req, res) {
  var post_data = req.body;
  console.log(post_data);
})

更多文档可以在这里找到

如果你使用Express (Node.js的高性能、高级web开发)，你可以这样做:

HTML:

<form method="post" action="/">
    <input type="text" name="user[name]">
    <input type="text" name="user[email]">
    <input type="submit" value="Submit">
</form>

API客户端:

fetch('/', {
    method: 'POST',
    headers: {
        'Content-Type': 'application/json'
    },
    body: JSON.stringify({
        user: {
            name: "John",
            email: "john@example.com"
        }
    })
});

Node.js:(自Express v4.16.0起)

// Parse URL-encoded bodies (as sent by HTML forms)
app.use(express.urlencoded());

// Parse JSON bodies (as sent by API clients)
app.use(express.json());

// Access the parse results as request.body
app.post('/', function(request, response){
    console.log(request.body.user.name);
    console.log(request.body.user.email);
});

Node.js:(对于Express <4.16.0)

const bodyParser = require("body-parser");

/** bodyParser.urlencoded(options)
 * Parses the text as URL encoded data (which is how browsers tend to send form data from regular forms set to POST)
 * and exposes the resulting object (containing the keys and values) on req.body
 */
app.use(bodyParser.urlencoded({
    extended: true
}));

/**bodyParser.json(options)
 * Parses the text as JSON and exposes the resulting object on req.body.
 */
app.use(bodyParser.json());

app.post("/", function (req, res) {
    console.log(req.body.user.name)
});

对于任何想知道如何在不安装web框架的情况下完成这个微不足道的任务的人，我设法把它放在一起。几乎没有生产准备，但它似乎工作。

function handler(req, res) {
    var POST = {};
    if (req.method == 'POST') {
        req.on('data', function(data) {
            data = data.toString();
            data = data.split('&');
            for (var i = 0; i < data.length; i++) {
                var _data = data[i].split("=");
                POST[_data[0]] = _data[1];
            }
            console.log(POST);
        })
    }
}

如果你从POST接收到JSON格式的数据。：

  import http from 'http';
  const hostname  = '127.0.0.1'; 
  const port = 3000;

  const httpServer:  http.Server = http.createServer((req: http.IncomingMessage, res: 
         http.ServerResponse) => {

        if(req.method === 'POST') {
        let body: string = ''; 
          req.on('data',(chunck) => {
            body += chunck;
          });

          req.on('end', () => {
            const body = JSON.parse(body);
            res.statusCode = 200;
            res.end('OK post');
          });
       }
 
     });

     httpServer.listen(port, hostname, () => {
       console.info(`Server started at port ${port}`);
     })