get('file'); //通过文件缓存的key获取文件储存的路径 $exportCache = new ExportCache(); $fileInfo = $exportCache->getFile($fileKey); if (empty($fileInfo)) { return JsonService::fail('下载文件不存在'); } //下载前删除缓存 $exportCache->delete($fileKey); return download($fileInfo['src'] . $fileInfo['name'], $fileInfo['name']); } }