Java jsp download file

Code Line Forwarding request using requestdispatcher object to result. Code Line Here we are getting the attribute from the request object with value gurumessage into a string object. We get a form wherein there is fields to choose a file from directory. Once the file is selected then we have to click on the upload button. Code Line As we have defined a href, which will be enclosed in URL so GET method will get processed doGet will be called in servlet which also encloses request and response objects.

Code Line We are setting content Type in response object and also get writer object from response. Code Line Defining a variable as gurufile as value test. Code Line We are setting the content type using response object and we use setHeader method which sets header into the response object as the filename which has been uploaded.

Code Line Here we have taken a while loop which will run till the file is read,hence we have given condition as! In this condition we are writing using printwriter object out. When you click on this hyperlink file, it will downloaded into the system. Machine Learning. Data Structures. Operating System. Computer Network. Compiler Design. Computer Organization. Discrete Mathematics. Ethical Hacking. Computer Graphics. Software Engineering. Web Technology. Cyber Security. C Programming. Control System.

Data Mining. Finally just link to that servlet in your JSP. You can find a basic example in this article. The Content-Type header informs the client about the content type of the file so that it knows what application it should use to open it. The Content-Disposition header informs the client what to do with it, displaying it inline or saving as attachment. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams?

Collectives on Stack Overflow. Learn more. Asked 11 years, 1 month ago. Active 11 years, 1 month ago. Viewed 25k times. Improve this question. BalusC 1. You'd get much better answers if you rephrase your question and be more specific about what advice you need — Yoni. What I mean is, what classes would be used to download files, Its not necessarily a CSV file, it could be anything, But how do i go about downloading files from a server using Java — tom man.