django从服务器下载文件到用户的机器,或在线阅读

Question

我在我的服务器上上传了一些.doc和.txt文件,我想有两个选择: - 用户能够下载文件 - 用户能够在线阅读我已经阅读了一些代码对于下载功能,但它似乎不起作用.

我的代码:

def download_course(request, id):
    course = Courses.objects.get(pk = id)
    response = HttpResponse(mimetype='application/force-download')
    response['Content-Disposition'] = 'attachment; filename=%s' % smart_str(file_name)
    response['X-Sendfile'] = smart_str(/root/)
    return response

def save_course(request, classname):
   classroom = Classroom.objects.get(classname = classname)
   if request.method == 'POST':
        form = CoursesForm(request.POST, request.FILES)
        if form.is_valid():
           handle_uploaded_file(request.FILES['course'])
           new_obj = form.save(commit=False)
           new_obj.creator = request.user
           new_obj.classroom = classroom
           new_obj.save()
           return HttpResponseRedirect('.')    
   else:
           form = CoursesForm()     
   return render_to_response('courses/new_course.html', {
           'form': form,
           }, 
          context_instance=RequestContext(request)) 


def handle_uploaded_file(f):
    destination = open('root', 'wb+')
    for chunk in f.chunks():
        destination.write(chunk)

    destination.close()

任何线索？谢谢!

Answer 1

您可以打开File对象来读取实际文件,然后像这段代码一样开始下载文件:

        path_to_file = os.path.realpath("random.xls")
        f = open(path_to_file, 'r')
        myfile = File(f)
        response = HttpResponse(myfile, content_type='application/vnd.ms-excel')
        response['Content-Disposition'] = 'attachment; filename=' + name
        return response

path_to_file:是文件在服务器上的位置. f = open(path_to_file, 'r')..阅读文件

剩下的就是下载文件.