Java download files

For downloading a file from the server, here is the simple example. I am supposing you have home.jsp file in E drive that you want to download. If there is any jar or zip file, you can direct provide a link to that file. So there is no need to write the program to download. But if there is any java file or jsp file etc, you need to create a program to download that file.

Example of downloading file from the server in servlet

In this example, we are creating three files:

• index.html
• DownloadServlet.java
• web.xml

This file provides a link to download the file.

This is the servlet file that reads the content of the file and writes it into the stream to send as a response. For this purpose, we need to inform the server, so we are setting the content type as APPLICATION/OCTET-STREAM .

This configuration file provides informations to the server about the servlet.