小编fid*_*ild的帖子

我正在使用Django教程进行Tango,我已经成功完成了教程,但是我在官方的Django民意调查教程中注意到了以下内容:

def vote(request, question_id):
p = get_object_or_404(Question, pk=question_id)
try:
    selected_choice = p.choice_set.get(pk=request.POST['choice'])
except (KeyError, Choice.DoesNotExist):
    # Redisplay the question voting form.
    return render(request, 'polls/detail.html', {
        'question': p,
        'error_message': "You didn't select a choice.",
    })
else:
    selected_choice.votes += 1
    selected_choice.save()
    # Always return an HttpResponseRedirect after successfully dealing
    # with POST data. This prevents data from being posted twice if a
    # user hits the Back button.
    return HttpResponseRedirect(reverse('polls:results', args=(p.id,)))

这里要注意的部分是"在成功处理POST数据后总是返回一个HttpResponseRedirect".但是,在Tango with Django教程中:

def add_page(request, category_name_url):
context = RequestContext(request) …

是否可以向 a 提供种子ThreadLocalRandom？

它 看起来是不是。

/**
 * Throws {@code UnsupportedOperationException}.  Setting seeds in
 * this generator is not supported.
 *
 * @throws UnsupportedOperationException always
 */
public void setSeed(long seed) {
    if (initialized)
        throw new UnsupportedOperationException();
    rnd = (seed ^ multiplier) & mask;
}

那么我们可以ThreadLocalRandom使用种子还是它不是为此而设计的？