django-登录页面添加验证码

1,安装第三方库

pip install django-simple-captcha

2，注册应用

INSTALLED_APPS = [
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    'login',
    'captcha',
]

3,添加路由

urlpatterns = [
    path('admin/', admin.site.urls),
    path('index/',views.index),
    path('login/',views.login),
    path('register/',views.register),
    path('logout/',views.logout),
    path('captcha/', include('captcha.urls')),
]

4,修改form模型

class UserForm(forms.Form):
    username = forms.CharField(label="用户名", max_length=128, widget=forms.TextInput(attrs={'class': 'form-control', 'placeholder': "Username",'autofocus': ''}))
    password = forms.CharField(label="密码", max_length=256, widget=forms.PasswordInput(attrs={'class': 'form-control','placeholder': "Password"}))
    captcha = CaptchaField(label='验证码')

5,执行数据迁移

python manage.py migrate

6,修改login.html

添加

    <div class="form-group">
                        {{ login_form.captcha.label_tag }}
                        {{ login_form.captcha }}
    </div>