springmvc 文件下載

@RequestMapping("/download.htm")    

    public ResponseEntity<byte[]> download(HttpServletRequest request, @RequestParam("fileId") String fileId) throws IOException {    

        String path="E:\\Users\\xc\\workspace\\ldassetWeb\\WebRoot\\js\\time.js";  

        File file=new File(path);  

        HttpHeaders headers = new HttpHeaders();    

        String fileName=new String("文件.js".getBytes("UTF-8"),"iso-8859-1");

        headers.setContentDispositionFormData("attachment", fileName);   

        headers.setContentType(MediaType.APPLICATION_OCTET_STREAM);   

        return new ResponseEntity<byte[]>(FileUtils.readFileToByteArray(file), headers, HttpStatus.CREATED);    

    } 

<a href="${ctx}/system/download.htm?fileId=188">下載</a>