upload

问题 I have the following <form action="classify_upload" method="post" id="upload-form"> <input type="file" name="imagefile" id="imagefile"/> <input type="submit" /> </form> And in my flask webapp I have the following rule: @webapp.route('/upload', methods=['POST']) def upload(): try: imagefile = flask.request.files['imagefile'] ... except Exception as err: ... But I am getting a error 400: bad request , which from my googling tells me Flask can not find the file under the key 'imagefile' which is

问题 I would like to send pictures via a program written in C + +. - OK It works, but I would like to send the pictures from pre-loaded carrier to a variable char (you know what I mean? First off, I load the pictures into a variable and then send the variable), cause now I have to specify the path of the picture on a disk. I wanted to write this program in c++ by using the curl library, not through exe. extension. I have also found such a program (which has been modified by me a bit) 回答1: CURLFORM

问题 I would like to upload a image using safari on ipad here is my html code <input type="file" accept="image/*"> When i try to select a file, safari prompt me to choose "take photo" or "select existed file", how can i disable the "take photo" options, and just select an existing file? I also look up w3c document, and try codes below, but not work <input type="file" accept="image/*" capture="filesystem"> 回答1: According to this HTML5 compatibility comparator, Safari supports only partially the

问题 My scenario: ASP.NET Core 2.1 Web API Controller Azure Blob Storage as storage I read some docs on internet (and on Stack Overflow in particular), but I didn't find a real complete answer to my question. Question Which is the best practice to upload and download BIG files using a ASP.NET Core 2.1 Web Api Controller and Azure Blob Storage as back-end for saving data? Please, suppose the controller is: [Route("api/[controller]")] [ApiController] public class UploadDownloadController :

问题 In an ASP.NET MVC I have a database table. I want to have a button on some view page, if some user clicks that button I my application will generate XML file containing all rows in the database. Then the file containing XML should be sent to the client so that the user will see a download pop-up window. Similarly I want to allow user to upload an XML file whose content will be added to the database. What's the simplest way to let the user upload and download file ? Thanks for all the answers

问题 I've put together a basic applet where the user selects a file from their hard drive, it reads the first line of this file and passes that off to JavaScript for some additional preprocessing, and then when you click a button it tries to upload that file through an HTTP POST request. I found a very basic open source applet for uploading files that I copied and modified for this last bit. The trouble is, though, it doesn't quite work. It seems like it's running fine, but then I run into two

问题 This question already has answers here : How to upload a file to a WCF Service? (4 answers) Closed 2 years ago . I'll create an WCF for uploading file such as images or pdf files to te server. How can I create a service that can handle this function ? I tried to googling about it, but most of article told me to use Stream as service parameter. But what I want is using byte[] (array) for the file content. because, this service is not only accessing using .nte framework, but also using other

问题 We're 4 guys making a website for our final school project. We need to allow a user to upload a pdf. We're using Visual Studio 2012, and we have a Master page set up, and the whole login-process and user-creation works. We're using jQuery, and also jQueryMobile because the site needs to work for phones as well, and this makes it a bit easier. But when we want to check the files the client is trying to upload in our code behind, Request.Files is always empty. Why is this? I have the enctype

问题 The code below fails? What might be the problem? YouTubeRequestSettings settings = new YouTubeRequestSettings("whatwill come here ?", "my api key", "my youtube login email", "my youtube login password"); YouTubeRequest request = new YouTubeRequest(settings); Video newVideo = new Video(); newVideo.Title = "test 1"; newVideo.Tags.Add(new MediaCategory("Gaming", YouTubeNameTable.CategorySchema)); newVideo.Keywords = "test 1 , test 2"; newVideo.Description = "test 3 test 4"; newVideo.YouTubeEntry

问题 The code below fails? What might be the problem? YouTubeRequestSettings settings = new YouTubeRequestSettings("whatwill come here ?", "my api key", "my youtube login email", "my youtube login password"); YouTubeRequest request = new YouTubeRequest(settings); Video newVideo = new Video(); newVideo.Title = "test 1"; newVideo.Tags.Add(new MediaCategory("Gaming", YouTubeNameTable.CategorySchema)); newVideo.Keywords = "test 1 , test 2"; newVideo.Description = "test 3 test 4"; newVideo.YouTubeEntry