req.body 未定义使用 post 方法

Question

login.html（我已经把它转成jade了）是我的登录页面，在localhost:3000打开。我将表单详细信息发送到 index.js（服务器）。

问题：在 console.log(username) 上，我得到未定义的输出。请帮忙。我是否正确使用了 body-parser？

var express= require('express');
var app = express();
var http = require('http').Server(app);
var io = require('socket.io')(http);
var bodyParser = require('body-parser');

app.use(express.static('./Public'));
app.set('views', __dirname + '/tpl');
app.set('view engine', "jade");
app.engine('jade', require('jade').__express);
app.get("/", function(req, res){
    res.render("login");
});

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

app.post('/', function(req,res) {
    var username = req.body.name;
    console.log(username);
  });

http.listen(3000, function(){
    console.log('listening on *:3000');
});

html代码：(login.html)

<html>
       <body>
          <form action="/" method="post" enctype="multipart/form-data">
             <fieldset>
                <label for="name">Name:</label>
                <input type="text" id="name" name="name" placeholder="Enter your full name" />
                <br />
                <label for="email">Email:</label>
                <input type="email" id="email" name="email" placeholder="Enter your email address" />
                <br />
                <input type="submit" value="Create Profile" />
             </fieldset>
          </form>
          <script>
             var socket = io.connect("http://loacalhost:3000");
          </script>
       </body>
    </html>

Answer 1

如果您查看 body-parser 的文档，您会注意到这一点：

This does not handle multipart bodies, due to their complex and typically large nature. For multipart bodies, you may be interested in the following modules:

busboy and connect-busboy multiparty and connect-multiparty formidable multer

因此您必须将 enctype="multipart/form-data" 更改为例如 enctype="application/json" 或使用其他模块。

希望对你有所帮助

req.body 未定义使用 post 方法

req.body undefined using post method

node.js

express

body-parser