无法查看上传到Azure Blob存储的图像 [英] Cannot view image upload to azure blob storage
问题描述
我正在使用Node.js将图像上传到Azure存储器 https://github.com/Azure/azure-storage-node .上传成功,但是访问URL时看不到图像.
I am using Node.js to upload an image to azure storage https://github.com/Azure/azure-storage-node. The upload is successful, but I cannot see the image when I visit the URL.
上传代码如下.
var file = 'tmp/myimage.png';
var blobService = azure.createBlobService(config.azure.connection_string);
blobService.createBlockBlobFromLocalFile(config.azure.container, 'taskblob', file, function(err, result, response) {
if(err) return console.log(err);
console.log(response);
callback();
});
在azure门户中,我可以看到某些内容已上传到我的容器中,访问提供的URL只会加载一个空白页面.
In azure portal I can see something has been uploaded to my container, visiting the provided URL just loads a blank page.
https://<storage>.blob.core.windows.net/<container>/taskblob
在登录响应"时,我也收到了Azure的成功响应
I am also getting a success response back from Azure when logging 'response'
推荐答案
@wazzaday,通常,我们可以使用提供的代码将文件上传到Azure Blob Stroage.
@wazzaday, Generally, we can upload the files into Azure Blob Stroage using the code as you provided.
var azure = require('azure-storage');
var blobSvc = azure.createBlobService("**","**");
var file = 'tmp/1.txt';
blobSvc.createContainerIfNotExists('mycontainer', function (error, result, response) {
if (!error) {
// Container exists and allows
// anonymous read access to blob
// content and metadata within this container
console.log('ok')
}
});
blobSvc.createBlockBlobFromLocalFile('mycontainer', 'myblob1', file, function (error, result, response) {
if (!error) {
console.log('file uploaded'+response)
} else {
console.log(error);
}
});
从上面的代码中,我们需要确保文件路径正确. 由于您在Azure Portal上的文件大小为0,因此建议您尝试使用ReadStream上载文件并再次检查文件大小.请参考此代码:
From above code, we need make sure the file path is right. Because your file size is 0 on Azure Portal, I suggest you can try ReadStream to upload your file and check the file size again. Please refer to this code :
var azure = require('azure-storage');
var fs = require('fs');
var blobSvc = azure.createBlobService("**","**");
var file = 'tmp/1.txt';
var stream = fs.createReadStream(file)
var dataLength = 0;
// using a readStream that we created already
stream
.on('data', function (chunk) {
dataLength += chunk.length;
})
.on('end', function () { // done
console.log('The length was:', dataLength);
});
blobSvc.createContainerIfNotExists('mycontainer', function (error, result, response) {
if (!error) {
// Container exists and allows
// anonymous read access to blob
// content and metadata within this container
console.log('ok')
}
});
blobSvc.createBlockBlobFromStream('mycontainer', 'filename', stream,dataLength, function (error) {
if (!error) {
console.log('ok Blob uploaded')
}
});
请尝试上面的代码,如有任何更新,请告诉我.
Please try above code, any update, please let me know.
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