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I want to implement downloading (with AJAX) of uploaded file from server. On the server side I wrote the code @RequestMapping(value = "/getInvoice/approvalId/{approvalId}", method = RequestMethod.GET) public @ResponseBody byte[] getInvoice(@PathVariable("approvalId") Integer approvalId, HttpServletResponse response) throws IOException { String fileName = this.approvalService.getFullInvoicePath(approvalId); File file = new File(fileName); response.setContentType("application/octet-stream"); response.setHeader("Content-Disposition", "attachment; filename=\"" + file.getName() + "\""); response.setHeader("Pragma", "no-cache"); response.setHeader("Cache-Control", "no-cache"); response.setContentLength((int) file.length()); return FileUtils.readFileToByteArray(file); } Fiddler2 shows response: HTTP/1.1 200 OK Server: Apache-Coyote/1.1 Content-Disposition: attachment; filename="invoice.pdf" Pragma: no-cache Cache-Control: no-cache Content-Type: application/octet-stream;charset=UTF-8 Content-Length: 1028351 Date: Sun, 17 Jul 2011 08:16:41 GMT %PDF-1.4 %���� 6 0 obj <</Linearized 1/L 1028351/O 8/E 1024254/N 1/T 1028185/H [ 5056 544]>> endobj xref 6 238 *** FIDDLER: RawDisplay truncated at 128 characters. Right-click to disable truncation. *** How to handle and force browser to download file using jQuery?

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