让django支持下载文件

def file_download(request, id, fid):
    file_obj = models.FileRepository.objects.filter(id=fid, project=request.tracer.project).first()
    res = requests.get(
        url=file_obj.file_path,
    )

    data = res.content
    response = HttpResponse(data)
    response['Content-Disposition'] = f'attachment; filename={file_obj.name}'
    return response

1.首先获取到该文件的二进制数据：

data = request.get(url=file_obj.file_path).content # 这是通过requests模块获取文件二进制数据

2.然后设置响应头并返回，浏览器会自动识别相应头的格式并判断

response = HttpResponse(data)
response['Content-Disposition'] = f'attachment; filename={file_obj.name}'
return response