blob

问题 After i looked up the www, stackoverflow and youtube, i couldn't find an concrete answer about, how to fetch an image correctly from: https://graph.microsoft.com/beta/me/photo/$value in TypeScript/JavaScript. The solution is really easier as i thought. You just need this an additional information in your GET Request: responseType: ResponseContentType.ArrayBuffer 回答1: The complete solution looks like this: import { DomSanitizer } from "@angular/platform-browser"; import { Http, Headers,

问题 I'm trying to display a list of contacts that are currently stored in a SQLiteDatabase . Previously I've retrieved ContactsContract.Contacts.PHOTO_THUMBNAIL_URI and stored it in a form of byte[] in the BLOB column of my database rows. Now when I'm trying to extract the thumbnails back, by decoding them to Bitmaps in MyBinderView class, the pictures don't appear, instead I see empty spaces(the default image, ic_launcher , is showed correctly). My ListView row layout: <?xml version="1.0"

问题 I am trying to download multiple images as a zip file. As I am using Azure blob, first I listed all blobs then compressed it using Archiver and used pipe function to send it to the client. But I am getting zip as a raw file and it is not downloading. I am using Node js + Express. Server-side script: function zipURLs(urls, outStream) { var zipArchive = archiver.create('zip'); async.eachLimit(urls, 3, function(url, done) { console.log(url); var stream = request.get(url); stream.on('error',

问题 What i Need to do: im working on a backup and restore tool for my Company. Backup remote SQL databases is done without any Problems. But i have Problems while restoring them. I'm currently creating a temporary table on the remote SQL where the binary of the database is saved. Now i Need to Export this binary field from a remote SQL Server to a file that Needs to be saved on remote disk too. This tool has the requirement to get started on local machine so there is no way of running it on

问题 I have been trying to use python to extract compressed blobs from Oracle and decompress them. But the bigger blobs do not get decompressed completely. I have tried using dataframes and files to store the blobs and then decompress them but it doesn't convert the bigger blobs. Can memory be the possible issue? What changes can I try out? I cannot share the blobs as its restricted data. And I dont have access to create test data. I am using the below decompression code from git for decompressing

问题 I am desperately trying to get a non-animated gif export from a DOM Node, on client-side, but without any success yet. I use for that the lib dom-to-image which, thanks to it's method toPixelData , return some pixels. Then I want these pixels to give me a gif. I use for this the lib gif-encoder which sounds great. I thought about using a Promise for that because the last step is to put this gif in a ZIP file created by JSZip. Here is the code below. Consider that I already have the DOM Node

问题 I'm trying to take an uploaded image, encrypt the image, store it in MySQL, then decrypt it for display when an authorized person requests to see it. Here's how I'm currently encrypting: $image = addslashes(file_get_contents($_FILES['users_image']['tmp_name'])); $enc_image = encrypt($image, "long secret random key"); Then I store the $enc_image in a MySQL BLOB field. When I try to decrypt it and print it goes like so: $img = decrypt($rec['file'], "long secret random key"); echo '<img src=

问题 I have a blob url such as : blob:http://localhost:4200/06a6baa9-b7ff-4171-9dc2-a1caed35e099 and when passing into this.storage.ref('users/' + uid + '/mainPhoto').put(imageURL)) I am receiving this error: Firebase Storage: Invalid argument in put at index 0: Expected Blob or File. 回答1: You need to upload the blob from the blob url, and than upload it to firebase storage Upload Function : uploadToStorage = (imageURL) = >{ getFileBlob(imageURL, blob =>{ firebase.storage().ref().put(blob).then

问题 I am trying to read blob data into an html image object. I want to avoid any file creation and handling in the process (unless its unavoidable). My current code is Data table: studentID | firstname | photo ----------+-----------+------------ 93 |Eva | Blob data StudentEntity.cs: public class ShortStudent { public string firstname { get; set; } public int studentid { get; set; } public string photo { get; set; } } This data is then sent to the view as follows ShortStudent sd = new ShortStudent

问题 I am sometimes unable to download from an Azure blob storage when debugging locally. I have a static file that I uploaded and then download it during testing. I can download it many times successfully, but sometimes when I call DownloadToFile, it blocks for a while, creates a 0kb file with the correct name, then throws an exception saying "Server encountered an internal error. Please try again after some time". After this, I cannot download again unless I delete and upload the file again. No