SpringBoot实现利用浏览器文件_springboot 浏览器

@RestController@RequestMapping("file")@Api(tags ="下载文件")publicclassdownloadFile{@GetMapping("/downloadFile")public ResponseEntity<FileSystemResource>downloadFile(String path){returnexport(newFile(path));}public ResponseEntity<FileSystemResource>export(File file){if(file == null){return null;}
        HttpHeaders headers =newHttpHeaders();
        headers.add("Cache-Control","no-cache, no-store, must-revalidate");
        headers.add("Content-Disposition","attachment; filename="+ file.getName());
        headers.add("Pragma","no-cache");
        headers.add("Expires","0");
        headers.add("Last-Modified",newDate().toString());
        headers.add("ETag", String.valueOf(System.currentTimeMillis()));return ResponseEntity
                .ok().headers(headers).contentLength(file.length()).contentType(MediaType.parseMediaType("application/octet-stream")).body(newFileSystemResource(file));}}

前端传入路径，就可以直接下载到浏览器了。