@RequestMapping("testResponseEntityEntity") public ResponseEntity<byte[]> testResponseEntityEntity(HttpSession httpSession) throws IOException{ byte[] body=null; ServletContext servletContext=httpSession.getServletContext(); InputStream inputStream=servletContext.getResourceAsStream("/files/abc.txt"); body=new byte[inputStream.available()]; inputStream.read(body); //相应头 HttpHeaders httpHeaders=new HttpHeaders(); httpHeaders.add("Content-Disposition","attachment;filename=abc.txt"); //相应码 HttpStatus status=HttpStatus.OK; ResponseEntity<byte[]> responseEntity=new ResponseEntity<byte[]>(body,httpHeaders,status); return responseEntity; }
没搞明白呢