文件上传和下载使用流星 [英] File upload and download using meteor
问题描述
- 一个用户可以点击一个按钮上传一个.zip文件（当我在本地主机上构建概念证明运行时，我希望将它存储到本地数据库中。）
- 该文件与Mongodb集合的特定对象相关联。
- 在与该对象相关联的客户端页面上，可以单击按钮下载该.zip文件。 >
我发现的关于这一点的所有信息都被弃用，引用collectionFS，或者太具体/针对一个利基问题。这已经证明比问题似乎是！
我将要寻找的是一个教程式指南，说明如何执行此操作或一些代码片段，有助于设置实现上述功能。
编辑
使用包 tomi：meteor-upload 加载文件。
然后创建一个 /。uploads 文件夹，我的文件上传到。
当我尝试然后使用< a href =/。uploads / myfilename下载目标=_ blank>下载< / a> ，然后从客户端下载下载的文件已损坏！
我也尝试将它们上传到 / public 文件夹，而不是 /。uploads 文件夹，但仍然有相同的问题。
这是看到这里，但是没有找到解决方案，即使我手动chmod 777我的文件我得到了问题！ / p>
谢谢！
你可以尝试busboy https://github.com/mscdex/busboy ：
this.route（'/ upload'，{
其中：'server'，
方法：'POST'，
名称：'upload'
onBeforeAction：（function（req，res，next）{
// busboy code here
var busboy = new Busboy（{headers：req.headers}）;
busboy。 on（'file'，function（fieldname，file，filename，encoding，mimetype）{
console.log（'文件['+ fieldname +']：filename：'+ filename +'，encoding：'+ encoding +'，mimetype：'+ mimetype）;
file.on（'data'，function（data）{
console.log（'File ['+ fieldname +'] got'+ data.length +'bytes'）;
}）;
file.on（'end'，function（）{
console.log（'File ['+ fieldname +'] Finished'）;
}）;
}）;
busboy.on（'field'，function（fieldname，encoding，mimetype）{
console.log（'Field ['+ fieldname +']：value：'+ inspect（val））;
}）;
busboy.on（'finish'，function（）{
console.log（'Done parsing form！'）;
res.writeHead（303，{Connection：'close'，Location ：'/'}）;
res.end（）;
next（）;
}）;
req.pipe（busboy）;
}）;
可以使用 file.pipe（fs.createWriteStream（saveTo））;
，saveTo是您上传的路径，例如： C：/ media / ，并尝试创建ang Path的链接示例： localhost：80 / media / image-here.png 使用方法将这些链接存储在数据库中，您可以使用APACHE进行文件托管。
I am new to Meteor and web development in general, what I would like to achieve for my meteor web-app is the following:
- A user can click on a button to upload a .zip file (I want this to get stored to my local database as I am building a proof-of-concept run in localhost).
- the file gets associated with a particular object of a Mongodb Collection.
- On the client page associated with that object one can click on a button to download that .zip file.
All the information I found regarding this either deprecated, referring to collectionFS, or too specific/for a niche problem.This has proven more complicated than the issue appears to be!
What i would be looking for is either a tutorial-like guide explaining how to do so or some code snippets that would help get set-up for achieving the mentioned functionality.
EDIT
I have managed to upload files using the package tomi:meteor-upload .
This then creates a /.uploads folder where my files are uploaded to.
When I try to download them from the client however using <a href="/.uploads/myfilename" download target="_blank">Download</a>, I get that the files downloaded are damaged!
I also tried by uploading them to a /public folder than the /.uploads folder, but still having the same issue.
This is seen here, but no solution has been found, even if I chmod 777 my files manually I get the problem!
Thanks!
You can try busboy https://github.com/mscdex/busboy :
this.route('/upload', {
where: 'server',
method: 'POST',
name:'upload',
onBeforeAction: (function (req, res, next) {
//busboy code here
var busboy = new Busboy({ headers: req.headers });
busboy.on('file', function(fieldname, file, filename, encoding, mimetype) {
console.log('File [' + fieldname + ']: filename: ' + filename + ', encoding: ' + encoding + ', mimetype: ' + mimetype);
file.on('data', function(data) {
console.log('File [' + fieldname + '] got ' + data.length + ' bytes');
});
file.on('end', function() {
console.log('File [' + fieldname + '] Finished');
});
});
busboy.on('field', function(fieldname, encoding, mimetype) {
console.log('Field [' + fieldname + ']: value: ' + inspect(val));
});
busboy.on('finish', function() {
console.log('Done parsing form!');
res.writeHead(303, { Connection: 'close', Location: '/' });
res.end();
next();
});
req.pipe(busboy);
});
you can use file.pipe(fs.createWriteStream(saveTo));
and the saveTo is the path you where upload, example: C:/media/ , and try to create ang Path of the link example: localhost:80/media/image-here.png use method to store these link in your database, you can use APACHE for File hosting.
这篇关于文件上传和下载使用流星的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
