How to download file from website Java Jsp. By mkyong August 2. Updated April 1. Viewed 3. Here i show a simple java example to demonstrate how to let user download a file from website. No matter you are using struts, JSP, Spring or whatever other java framework, the logic is same. First we have to set Http. Servlet. Response response to tell browser about system going to return an application file instead of normal html page. Content. Typeapplicationoctet stream. HeaderContent Disposition. There have 2 ways to let user download a file from website. Download Getting Started With Spring Framework Pdf To Excel' title='Download Getting Started With Spring Framework Pdf To Excel' />Read file from physical location. File file new FileC tempdownloadfilename. File. Input. Stream file. In new File. Input. Vreveal Premium License Key. Streamfile. Servlet. Download Getting Started With Spring Framework Pdf To Excel' title='Download Getting Started With Spring Framework Pdf To Excel' />Output. Best Proxy Browser Software. Stream out response. Output. Stream. Byte new byte4. Latest trending topics being covered on ZDNet including Reviews, Tech Industry, Security, Hardware, Apple, and Windows. All cheat sheets, roundups, quick reference cards, quick reference guides and quick reference sheets in one page. Oracle acquired Sun Microsystems in 2010, and since that time Oracles hardware and software engineers have worked sidebyside to build fully integrated systems and. In. readoutput. Byte, 0, 4. Byte, 0, 4. 09. 6. In. close. Export database data or string directly to Input. Stream for user download. String. Buffer sb new String. Bufferwhatever string you like. Input. Stream in new Byte. Array. Input. Streamsb. String. get. BytesUTF 8. Servlet. Output. Stream out response. Output. Stream. Byte new byte4. Byte, 0, 4. 09. 6 1. Byte, 0, 4. 09. 6. Done. Here i show my struts example to demonstrate how to directly write data into Input. Stream and output it as temp. Action. Forward exportAction. Mapping mapping, Action. Form form. Http. Servlet. Request request, Http. Servlet. Response response. Exception. tell browser program going to return an application file. Content. Typeapplicationoctet stream. Free Typing Practice Download. HeaderContent Disposition,attachment filenametemp. Servlet. Output. Stream out response. Output. Stream. String. Buffer sb generate. Csv. File. Buffer. Input. Stream in. Byte. Array. Input. Streamsb. to. String. BytesUTF 8. Byte new byte4. Byte, 0, 4. 09. 6 1. Byte, 0, 4. 09. 6. String. Buffer generate. Csv. File. Buffer. String. Buffer writer new String. Buffer. writer. Display. Name. writer. Age. Hand. Phone. writer. Heres a file download example in Servlet code.