node.js - Express 3.0 bodyParser 无法正常工作

Question

我正在使用最新版本的express no. 3.我已阅读文档，并且完全按照所写的操作进行操作，但它仍然无法按预期工作。提交后，我在上传目录中收到一个文件，但随后一切都停止了，并且 app.post 中的回调函数不会触发。代码:

HTML-JADE:

form(action="/upload", method="post", enctype="multipart/form-data")
  input(type="file", name="image")
  input(type='submit', value='submit')

应用程序.js:

var express = require('express')
  , user = require('./routes/user')
  , http = require('http')
  , path = require('path')
  , mongo = require('mongodb')
  , Server = mongo.Server
  , Db = mongo.Db
  , routes = require('./routes')
    
var  app = express();

app.configure(function(){
  app.set('port', process.env.PORT || 3000);
  app.set('views', __dirname + '/views');
  app.set('view engine', 'jade');
  app.use(express.favicon());
  app.use(express.logger('dev'));
  app.use(express.bodyParser({uploadDir:'./upload'}));
  app.use(express.methodOverride());
  app.use(express.cookieParser('your secret here'));
  app.use(express.session());
  app.use(app.router);
  app.use(require('stylus').middleware(__dirname + '/public'));
  app.use(express.static(path.join(__dirname, 'public')));
});

app.post('/upload', function(req, res) {
  console.log(req.files.image) // this doesn't fire at all - no matter what i write here 
  res.send(200) //doesn't run also
});

Answer 1

读取数据后需要返回响应。如果不返回响应，express 不知道您的响应何时完成， Node 也不会关闭与客户端的连接。

试试这个:

app.post('/upload', function(req, res) {
  console.log(req.files.image);

  req.on('data', function(raw) {
    console.log('received data');
  });

  req.on('end', function() {
    console.log('end');
    res.send(200);
  });
}