CBV成功消息传值

在rest1-book-list链接对应的html模板中增加

    {% if messages %}
        {% for message in messages %}
             {{ message }}
        {% endfor %}
    {% endif %}

可接收到success_message传送的消息。

from django.contrib.messages.views import SuccessMessageMixin
class BookCreateView(SuccessMessageMixin, CreateView):
    model = Book
    form_class = BookForm
    template_name = 'book_form.html'
    success_url = reverse_lazy('rest1-book-list')
    success_message = '%(title)s was created successfully'
    msg=''

    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)
        context['msg'] = self.msg
        return context

reference: https://docs.djangoproject.com/en/2.2/ref/contrib/messages/