当在Nodejs中上传文件时,Formidable没有form.parse() [英] Formidable doesnt form.parse() when uploading a file in Nodejs
问题描述
当我发送一个文件/上传,从终端,我可以看到,代码被封锁在form.parse(请求...在互联网上我读到,这是因为我使用bodyParser(),和人们建议要做到这一点:$ b
$ pre code删除express.bodyParser.parse ['multipart / form-data'];
code>
然而,当我这样做时,我的代码崩溃,因为解析为null。
任何人有任何想法如何获得文件上传工作只在/上传,可能与强大?
谢谢。
这是我的 app.js :
'use strict';
var express = require(express);
var async = require(async);
var http = require('http');
var url = require (url);
var qs = require(querystring);
var fs = require(fs);
var formidable = require(formidable);
var mime = require(mime);
var app = module.exports = express();
app.configure ction(){
app.set(views,__dirname +/ views);
app.set(view engine,ejs);
app.engine(html,ejs.renderFile);
app.use(express.bodyParser());
app.use(express.methodOverride());
app.use(express.cookieParser(abc));
app.use(express.static(__ dirname +/ static));
app.use(app.router);
app.use(express.limit('5mb'));
});
app.post('/ upload',storage.upload);
这是我的代码 storage.js :
'use strict';
var async = require('async');
var formidable = require('formidable');
var fs = require('fs');
var util = require('util');
var api = require('./ common');
$ b $ exports.upload = function(req,res){
console.log(我在这里);
var form = new formidable.IncomingForm(),
files = [],
fields = [];
form.uploadDir =./uploads;
$ b form
.on('field',function(field,value){
console.log(field,value);
fields.push([field ,value]);
})
.on('error',function(err){
res.writeHead(200,{'content-type':'text / plain'} );
res.end('error:\\\
\\\
'+ util.inspect(err));
})
.on('file',function(field,文件){
console.log(field,file);
files.push([field,file]);
})
.on('aborted',function err){
console.log(user aborted upload);
})
.on('end',function(){
console.log(' - > ;上传完成');
res.writeHead(200,{'content-type':'text / plain'});
res.write('received fields:\\\
\\\
' + util.inspect(fields));
res.write('\\\
\\\
');
res.end('received files:\\\
\\\
'+ util.inspect (files));
});
form.parse(req);
};
你看过github上的例子: https://github.com/visionmedia/express/blob/master/examples/ multipart / index.js
我修改了它在Express 3.x上运行,它似乎工作顺利:
var express = require('express');
var fs = require('fs');
var app = express();
var format = require('util')。format;
//连接2.x中的bodyParser使用node-formidable来解析
//多部分表单数据。
app.use(express.bodyParser())
app.get('/',function(req,res){
res.send('< form method =postenctype =multipart / form-data>'
+'< p>标题:< input type =textname =title/>< / p>'
+'< p>图片:< input type =filename =image/>< / p>'
+'< p>< input type =提交value =上传/>< / p>'
+'< / form>');
});
$ b $ app.post('/',function(req,res,next){
//上传的文件可以被找到为'req.files.image`和
// title字段作为`req.body.title`
res.send(格式('\\\
uploaded%s(%d Kb)到%s为%s'
,req.files。 image.name
,req.files.image.size / 1024 | 0
,req.files.image.path
,req.body.title));
}) ;
if(!module.parent){
app.listen(3000);
console.log('Express on port 3000');
}
When i send a file to /upload, from the terminal I can see that the code is blocked at form.parse(req... On the Internet I read that this is because I use bodyParser(), and people suggested to do this:
delete express.bodyParser.parse['multipart/form-data'];
however when I do that my code crashes since parse is null.
Anyone has any idea on how to get file upload working only in /upload and possibly with formidable?
Thanks.
This is my app.js:
'use strict';
var express = require("express");
var async = require("async");
var http = require('http');
var url = require("url");
var qs = require("querystring");
var fs = require("fs");
var formidable = require("formidable");
var mime = require("mime");
var app = module.exports = express();
app.configure(function () {
app.set("views", __dirname + "/views");
app.set("view engine", "ejs");
app.engine("html", ejs.renderFile);
app.use(express.bodyParser());
app.use(express.methodOverride());
app.use(express.cookieParser("abc"));
app.use(express.static(__dirname + "/static"));
app.use(app.router);
app.use(express.limit('5mb'));
});
app.post('/upload', storage.upload);
This is my code storage.js:
'use strict';
var async = require('async');
var formidable = require('formidable');
var fs = require('fs');
var util = require('util');
var api = require('./common');
exports.upload = function (req, res) {
console.log("I am here");
var form = new formidable.IncomingForm(),
files = [],
fields = [];
form.uploadDir = "./uploads";
form
.on('field', function (field, value) {
console.log(field, value);
fields.push([field, value]);
})
.on('error', function (err) {
res.writeHead(200, {'content-type': 'text/plain'});
res.end('error:\n\n'+util.inspect(err));
})
.on('file', function (field, file) {
console.log(field, file);
files.push([field, file]);
})
.on('aborted', function (err) {
console.log("user aborted upload");
})
.on('end', function () {
console.log('-> upload done');
res.writeHead(200, {'content-type': 'text/plain'});
res.write('received fields:\n\n '+util.inspect(fields));
res.write('\n\n');
res.end('received files:\n\n '+util.inspect(files));
});
form.parse(req);
};
Have you seen the example on github: https://github.com/visionmedia/express/blob/master/examples/multipart/index.js
I've modified it to run on Express 3.x and it seems to work smoothly:
var express = require('express');
var fs = require('fs');
var app = express();
var format = require('util').format;
// bodyParser in connect 2.x uses node-formidable to parse
// the multipart form data.
app.use(express.bodyParser())
app.get('/', function(req, res){
res.send('<form method="post" enctype="multipart/form-data">'
+ '<p>Title: <input type="text" name="title" /></p>'
+ '<p>Image: <input type="file" name="image" /></p>'
+ '<p><input type="submit" value="Upload" /></p>'
+ '</form>');
});
app.post('/', function(req, res, next){
// the uploaded file can be found as `req.files.image` and the
// title field as `req.body.title`
res.send(format('\nuploaded %s (%d Kb) to %s as %s'
, req.files.image.name
, req.files.image.size / 1024 | 0
, req.files.image.path
, req.body.title));
});
if (!module.parent) {
app.listen(3000);
console.log('Express started on port 3000');
}
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