Javascript nodejs使用knox上传到s3?
例如: knox.js:Javascript nodejs使用knox上传到s3?,javascript,node.js,Javascript,Node.js,例如: knox.js: knox.putFile("local.jpeg", "upload.jpeg", { "Content-Type": "image/jpeg" }, function(err, result) { if (err != null) { return console.log(err); } else { return console.log("Up
knox.putFile("local.jpeg", "upload.jpeg", {
"Content-Type": "image/jpeg"
}, function(err, result) {
if (err != null) {
return console.log(err);
} else {
return console.log("Uploaded to amazon S3");
我有两个图像与knox.js在同一目录下,local.jpeg和local2.jpeg,我可以将local.jpeg上传到s3,但不能上传local2.jpeg,这两个文件具有相同的权限。我有什么遗漏吗?谢谢,那是因为你的代码没有上传local2.jpeg 您编写的代码将只推送名为
local.jpeg
的文件。对于每个文件,都应该调用knox.put()
方法。我还建议您使用一些helper函数,该函数将执行一些字符串格式化,以重命名为s3上上载的文件(或者保持原样:)
我的实现没有在区域设置中存储。使用
express
,knox
,mime
,fs
var knox = require('knox').createClient({
key: S3_KEY,
secret: S3_SECRET,
bucket: S3_BUCKET
});
exports.upload = function uploadToAmazon(req, res, next) {
var file = req.files.file;
var stream = fs.createReadStream(file.path)
var mimetype = mime.lookup(file.path);
var req;
if (mimetype.localeCompare('image/jpeg')
|| mimetype.localeCompare('image/pjpeg')
|| mimetype.localeCompare('image/png')
|| mimetype.localeCompare('image/gif')) {
req = knox.putStream(stream, file.name,
{
'Content-Type': mimetype,
'Cache-Control': 'max-age=604800',
'x-amz-acl': 'public-read',
'Content-Length': file.size
},
function(err, result) {
console.log(result);
}
);
} else {
next(new HttpError(HTTPStatus.BAD_REQUEST))
}
req.on('response', function(res){
if (res.statusCode == HTTPStatus.OK) {
res.json('url: ' + req.url)
} else {
next(new HttpError(res.statusCode))
}
});
如何指定s3 buckets3的文件夹没有确切的“文件夹”。您只需在文件前面加上“foo/bar/”等,s3控制台就会显示它,就好像它在文件夹中一样。在本例中,将参数putStream从file.name更改为“foo/”+file.name就可以了。
var knox = require('knox').createClient({
key: S3_KEY,
secret: S3_SECRET,
bucket: S3_BUCKET
});
exports.upload = function uploadToAmazon(req, res, next) {
var file = req.files.file;
var stream = fs.createReadStream(file.path)
var mimetype = mime.lookup(file.path);
var req;
if (mimetype.localeCompare('image/jpeg')
|| mimetype.localeCompare('image/pjpeg')
|| mimetype.localeCompare('image/png')
|| mimetype.localeCompare('image/gif')) {
req = knox.putStream(stream, file.name,
{
'Content-Type': mimetype,
'Cache-Control': 'max-age=604800',
'x-amz-acl': 'public-read',
'Content-Length': file.size
},
function(err, result) {
console.log(result);
}
);
} else {
next(new HttpError(HTTPStatus.BAD_REQUEST))
}
req.on('response', function(res){
if (res.statusCode == HTTPStatus.OK) {
res.json('url: ' + req.url)
} else {
next(new HttpError(res.statusCode))
}
});