Spring导出文件

Export.java

    private ResponseEntity<byte[]> getExportResponse(String fileName, String exportContent) {
        HttpHeaders headers = new HttpHeaders();
        headers.setContentType(MediaType.APPLICATION_OCTET_STREAM);
        headers.setContentDispositionFormData("attachment", URLEncoder.encode(fileName, StandardCharsets.UTF_8));
        return new ResponseEntity<>(exportContent.getBytes(StandardCharsets.UTF_8), headers, HttpStatus.OK);
    }