: If you need to create the ZIP file on the fly from multiple sources, use java.util.zip.ZipOutputStream to wrap the response.getOutputStream() .
: For large files, stream the data in chunks using a buffer to avoid OutOfMemoryError or NegativeArraySizeException . Download File javan.zip
Content-Disposition : Set to attachment; filename="javan.zip" to suggest a specific filename. : If you need to create the ZIP
: Inform the browser that it is receiving a ZIP file so it can open a "Save As" dialog. Content-Type : Set to application/zip . Download File javan.zip