I’m new with Vaadin, and I don’t know how to get the File from the Upload component, I’m always having a server error. I don’t think I understand properly how this works. Any help will be welcome. This is my code. Answer Here’s a code sample from one of my projects FlieUploader.j…
Tag: file-upload
Java 8 – Best way to read and store a file received in REST service
I want to have an application where user can upload a csv file in front-end (Angular). I want a rest service to read it and then store the file as a BLOB into Oracle database. For the REST service, I will receive a MultipartFile object: For the entity, it will be something like this: I saw that I have getInpu…
Upload files to Microsoft Teams using API
I have an access token for Microsoft Graph. I have to upload file to the channels file tab. Can anyone help which endpoints I need to use for upload file to file tab I am calling below API: PUT: https://graph.microsoft.com/v1.0/groups/xxxxxxxx-xxxx-xxxx-xxxx-c8550c107aad/drive/items//sites/leafletcorp.com/Sha…
Uploading mp4 from Android phone to Spring server results in file missing a few hundred bytes if bigger than 2MB
I have been trying to upload to a Java Spring server running on my laptop, using an app written in Xamarin forms, using a physical Redmi Android device. But when I send out the multi-part request, if it is bigger than about 2MB, the file loses a few hundred bytes by the time it reaches the server. For example…
Java: Image upload with JavaScript – File is damaged, corrupted or too large
I am using Spring Boot as backend server and I have a JavaScript frontend. For sending data between front- and backend I’m using the Axios library, which usually works pretty fine. The Problem: The image looks like this in the (Chrome) browser console: It’s a very very long alphanumeric string and…
Content-Type not allowed: fileUpload in Struts 2
I am new to Struts 2 and trying to do use fileUpload interceptor. I am attaching all my code layers Action Class (FileUploadAction): error.jsp: Success.jsp: fileUpload.jsp: I am not understanding why I am getting this error Although my uploading file format is .jpg. Answer You are getting this error probably …
How to convert a multipart file to File?
Can any one tell me what is a the best way to convert a multipart file (org.springframework.web.multipart.MultipartFile) to File (java.io.File) ? In my spring mvc web project i’m getting uploaded file as Multipart file.I have to convert it to a File(io) ,there fore I can call this image storing service(…
404 error when referencing fileUpload interceptor in Struts 2
I am using struts.xml file which is described below : It was working before I added the last action upload. When I start the server it is showing me the 404 error. Can somebody help me out in resolving the issue. I am feeling that the issue is due to <interceptor-ref name=”fileUpload”>. Answ…
Identifying each field in Multiple File upload
When trying to upload multiple files with Struts 2 using ArrayList, how to identify each field? For example, if I have two file fields, File1 and File2 and on the client side, I choose to upload only File2, Struts 2 only creates one element in the list and I am not able to correctly map File1 as empty and Fil…
How to use blueimp jQuery file upload: Empty file upload result in Struts 2, fileitems are empty
I am using Blueimp and server side is Java, Struts2. I couldn’t find examples using Java, anyway I managed to use the sample code, but I am getting “Empty file upload result” when I am trying to upload a single file also. The HTML part is the same, I am not pasting here as it may go lengthy.…