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)
});

如果你更喜欢使用纯Node.js，那么你可以提取POST数据，如下所示:

// Dependencies const StringDecoder = require('string_decoder').StringDecoder; const http = require('http'); // Instantiate the HTTP server. const httpServer = http.createServer((request, response) => { // Get the payload, if any. const decoder = new StringDecoder('utf-8'); let payload = ''; request.on('data', (data) => { payload += decoder.write(data); }); request.on('end', () => { payload += decoder.end(); // Parse payload to object. payload = JSON.parse(payload); // Do smoething with the payload.... }); }; // Start the HTTP server. const port = 3000; httpServer.listen(port, () => { console.log(`The server is listening on port ${port}`); });

如果你使用node- terrible，你可以这样做:

var formidable = require("formidable");

var form = new formidable.IncomingForm();
form.parse(request, function (err, fields) {
    console.log(fields.parameter1);
    console.log(fields.parameter2);
    // ...
});

您需要使用请求以块的形式接收POST数据。On ('data'， function(chunk){…})

const http = require('http');

http.createServer((req, res) => {
    if (req.method == 'POST') {
        whole = ''
        req.on('data', (chunk) => {
            # consider adding size limit here
            whole += chunk.toString()
        })

        req.on('end', () => {
            console.log(whole)
            res.writeHead(200, 'OK', {'Content-Type': 'text/html'})
            res.end('Data received.')
        })
    }
}).listen(8080)

你应该考虑像jh建议的那样在指定位置增加一个尺寸限制。

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);
        })
    }
}

不使用express也可以提取post参数。

1: NMP安装多方

2:导入多方。As var multiparty = require('multiparty');

3: `

if(req.method ==='POST'){
   var form = new multiparty.Form();
   form.parse(req, function(err, fields, files) {
      console.log(fields['userfile1'][0]);
    });
    }

4:和HTML形式是。

<form method=POST enctype=multipart/form-data>
<input type=text name=userfile1><br>
<input type=submit>
</form>

我希望这对你有用。谢谢。