为Django的内置LoginView添加成功消息

from django.contrib.auth.views import LoginView

urlpatterns = [
    # 其他URL配置
    path('login/', LoginView.as_view(), name='login'),
    # 其他URL配置
]

from django.contrib.messages import constants as messages

MESSAGE_TAGS = {
    messages.SUCCESS: 'success',
}

{% if messages %}
    {% for message in messages %}
        {% if message.tags == 'success' %}
            <div class="alert alert-success" role="alert">
                {{ message }}
            </div>
        {% endif %}
    {% endfor %}
{% endif %}