对于那些使用原始二进制POST上传没有编码开销，你可以使用:

客户:

var xhr = new XMLHttpRequest();
xhr.open("POST", "/api/upload", true);
var blob = new Uint8Array([65,72,79,74]); // or e.g. recorder.getBlob()
xhr.send(blob);

服务器:

var express = require('express');
var router = express.Router();
var fs = require('fs');

router.use (function(req, res, next) {
  var data='';
  req.setEncoding('binary');
  req.on('data', function(chunk) {
    data += chunk;
  });

  req.on('end', function() {
    req.body = data;
    next();
  });
});

router.post('/api/upload', function(req, res, next) {
  fs.writeFile("binaryFile.png", req.body, 'binary', function(err) {
    res.send("Binary POST successful!");
  });
});

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);
    // ...
});

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。

1)从npm安装body-parser。

2)然后在app.ts中

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

3)然后你需要写

app.use(bodyParser.json())

在app.ts模块中

4)记住你要包括

app.use(bodyParser.json())

在任何模块声明的顶部或之前。

Ex:

app.use(bodyParser.json())
app.use('/user',user);

5)然后使用

var postdata = req.body;

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));
        });
    }
}

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)
});