Nov 06, 2018 In this article, we will demonstrate how to upload Excel files and display their content in a web page using the Spring MVC framework. Uploading Excel Files. In order to be able to upload files, we will first create a controller mapping that receives a MultipartFile and saves it in the current location.Lokesh Gupta Filed Under: Spring MVC
In Spring MVC application, to download a resource such as a file to the browser, you need to do the following in your controller.
voidreturn type for your request-handling method and add
HttpServletResponseas an argument to the method.
Save Asdialog, set it to
APPLICATION/OCTET-STREAM(NOT case sensitive).
fileNameis the default file name that should appear in the File Download dialog box.
Let’s look at an example implementation for file download controller.If you want to enable downloads for only authorized users then check the user’s logged in status first in the method, and then allow download otherwise redirect him to login screen.
Now if you hit the application URL :
http://localhost:8080/springmvcexample/download/pdf/sample.pdf, you will be able to get the Save As dialog box in your browser like below:
The file is placed inside folder “/WEB-INF/downloads/pdf”. You are free to change the path – make sure you change the controller code as well.
Many times, other websites may cross reference your files in their websites as direct links. You may not want to allow it. To disallow all download requests, coming from other domains, you can check if the refererGame gta vice city free download pc. header contains your domain name.
FileDownloadController will send files to the browser, only if the referer header is not null. This will prevent the images from being downloaded directly by typing their URLs in the browser or request coming from other domains.
Now if you try to hit the URL from browser directly, you will get this error:
Drop me your questions in comments section.
Happy Learning !!
I can not manage to download an excel file from the browser even though there is no error here in my controller method.
I got the information request from firebug.
and content of response
So I do not know what to do, I want the browser gives me the choice to sauvgader the file in a folder.
You’ll need novice to beginner level computer skills to use this method. Your old drivers can be backed up and restored if you encounter any problems. If you cannot find the right driver for your Sound Card, you can and we will find it for you.
A bit late to the party but..
I'm guessing the error is in this line:
try changing 'attachment' to 'inline' like this:
So I do not know what to do, I want the browser gives me the choice to save the file in a folder.
Very late to the party but..I was in the same situation: server creates the excel, the response to browser is ok, but the dialog does not appear.
The problem is that I'm doing an Ajax call.If I call the excel url in a new browser window, I can download it by the 'save as' dialog.
So I created a hidden
<a> element in the html, with the download html5 attribute.Then, in the ajax callback I set the href attribute of the tag
<a>Finally I call the click() function to fire the download.
Something like this:
and in the html
Hope this helps.
ps: this dirty solution works for me, but if someone can show if there is a better solution to fire the 'save as' dialog without a hidden html element, I'll be happy.Jee Mok