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Python NoReverseMatch at/account/login/Reverse for''；没有找到''；在django 3中不是有效的视图函数或模式名称

python html css django authentication

Python NoReverseMatch at/account/login/Reverse for''；没有找到''；在django 3中不是有效的视图函数或模式名称,python,html,css,django,authentication,Python,Html,Css,Django,Authentication,我是Django3的新手。最近我在做这个项目，我使用django身份验证系统进行登录。我面临一个问题： NoReverseMatch at/account/login/ 找不到“”的反转不是有效的视图函数或模式名称 我的以下代码是： 设置.py： INSTALLED_APPS = [ 'social_account.apps.SocialAccountConfig', 'django.contrib.admin', 'django.contrib.auth', '

我是Django3的新手。最近我在做这个项目，我使用django身份验证系统进行登录。我面临一个问题： NoReverseMatch at/account/login/ 找不到“”的反转不是有效的视图函数或模式名称

我的以下代码是：

设置.py：

INSTALLED_APPS = [
    'social_account.apps.SocialAccountConfig',
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
]

MIDDLEWARE = [
    'django.middleware.security.SecurityMiddleware',
    'django.contrib.sessions.middleware.SessionMiddleware',
    'django.middleware.common.CommonMiddleware',
    'django.middleware.csrf.CsrfViewMiddleware',
    'django.contrib.auth.middleware.AuthenticationMiddleware',
    'django.contrib.messages.middleware.MessageMiddleware',
    'django.middleware.clickjacking.XFrameOptionsMiddleware',
]

ROOT_URLCONF = 'social_mass_media.urls'

TEMPLATES = [
    {
        'BACKEND': 'django.template.backends.django.DjangoTemplates',
        'DIRS': [os.path.join(BASE_DIR, 'templates')],
        'APP_DIRS': True,
        'OPTIONS': {
            'context_processors': [
                'django.template.context_processors.debug',
                'django.template.context_processors.request',
                'django.contrib.auth.context_processors.auth',
                'django.contrib.messages.context_processors.messages',
            ],
        },
    },
]

WSGI_APPLICATION = 'social_mass_media.wsgi.application'


# Database
# https://docs.djangoproject.com/en/3.2/ref/settings/#databases

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.sqlite3',
        'NAME': BASE_DIR / 'db.sqlite3',
    }
}


# Password validation
# https://docs.djangoproject.com/en/3.2/ref/settings/#auth-password-validators

AUTH_PASSWORD_VALIDATORS = [
    {
        'NAME': 'django.contrib.auth.password_validation.UserAttributeSimilarityValidator',
    },
    {
        'NAME': 'django.contrib.auth.password_validation.MinimumLengthValidator',
    },
    {
        'NAME': 'django.contrib.auth.password_validation.CommonPasswordValidator',
    },
    {
        'NAME': 'django.contrib.auth.password_validation.NumericPasswordValidator',
    },
]


# Internationalization
# https://docs.djangoproject.com/en/3.2/topics/i18n/

LANGUAGE_CODE = 'en-us'

TIME_ZONE = 'UTC'

USE_I18N = True

USE_L10N = True

USE_TZ = True


# Static files (CSS, JavaScript, Images)
# https://docs.djangoproject.com/en/3.2/howto/static-files/

STATIC_URL = '/static/'
STATICFILES_DIRS = [
    os.path.join(BASE_DIR, 'static'),
]

# Default primary key field type
# https://docs.djangoproject.com/en/3.2/ref/settings/#default-auto-field

DEFAULT_AUTO_FIELD = 'django.db.models.BigAutoField'

LOGIN_URL = 'login'
LOGOUT_URL = 'logout'
LOGIN_REDIRECT_URL = 'dashboard'

from django.http import HttpResponse
from django.shortcuts import render
from django.contrib.auth import authenticate, login
from .forms import LoginForm
from django.contrib.auth.decorators import login_required
@login_required
def dashboard(request):
    return render(request, 'social_account/dashboard.html',{'section': 'dashboard'})

{% block title %} Dashboard {% endblock %}
{% block content %} 
{{section}}
    <h1> Dashboard </h1>
    <p> Welcome to your Account! </p>
{% endblock %}

{% load static %}
<!DOCTYPE html>
<html>
<head>
  <title>{% block title %}{% endblock %}</title>
  <link href="{% static "css/base.css" %}" rel="stylesheet">
</head>
<body>
  <div id="header">
    <span class="logo">Bookmarks</span>
    {% if request.user.is_authenticated %}
    <ul class="menu">
      <li {% if section == 'dashboard' %}class="selected" {% endif %}>
        <a href="{% url 'dashboard' %}">My dashboard</a>
      </li>
      <li {% if section == 'images' %}class="selected" {% endif %}>
        <a href="#">Images</a>
      </li>
      <li {% if section == "people" %}class="selected" {% endif %}>
        <a href="#">People</a>
      </li>
    </ul>
  {% endif %}
  <span class="user">
    {% if request.user.is_authenticated %}
      Hello {{ request.user.first_name }},
      <a href="{% url 'logout' %}">Logout</a>
    {% else %}
      <a href="{% url 'account:login' %}">Log-in</a>
    {% endif %}
  </span>
  </div>

  <div id="content">
    {% block content %}
    {% endblock %}
  </div>
</body>
</html>
视图.py：

INSTALLED_APPS = [
    'social_account.apps.SocialAccountConfig',
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
]

MIDDLEWARE = [
    'django.middleware.security.SecurityMiddleware',
    'django.contrib.sessions.middleware.SessionMiddleware',
    'django.middleware.common.CommonMiddleware',
    'django.middleware.csrf.CsrfViewMiddleware',
    'django.contrib.auth.middleware.AuthenticationMiddleware',
    'django.contrib.messages.middleware.MessageMiddleware',
    'django.middleware.clickjacking.XFrameOptionsMiddleware',
]

ROOT_URLCONF = 'social_mass_media.urls'

TEMPLATES = [
    {
        'BACKEND': 'django.template.backends.django.DjangoTemplates',
        'DIRS': [os.path.join(BASE_DIR, 'templates')],
        'APP_DIRS': True,
        'OPTIONS': {
            'context_processors': [
                'django.template.context_processors.debug',
                'django.template.context_processors.request',
                'django.contrib.auth.context_processors.auth',
                'django.contrib.messages.context_processors.messages',
            ],
        },
    },
]

WSGI_APPLICATION = 'social_mass_media.wsgi.application'


# Database
# https://docs.djangoproject.com/en/3.2/ref/settings/#databases

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.sqlite3',
        'NAME': BASE_DIR / 'db.sqlite3',
    }
}


# Password validation
# https://docs.djangoproject.com/en/3.2/ref/settings/#auth-password-validators

AUTH_PASSWORD_VALIDATORS = [
    {
        'NAME': 'django.contrib.auth.password_validation.UserAttributeSimilarityValidator',
    },
    {
        'NAME': 'django.contrib.auth.password_validation.MinimumLengthValidator',
    },
    {
        'NAME': 'django.contrib.auth.password_validation.CommonPasswordValidator',
    },
    {
        'NAME': 'django.contrib.auth.password_validation.NumericPasswordValidator',
    },
]


# Internationalization
# https://docs.djangoproject.com/en/3.2/topics/i18n/

LANGUAGE_CODE = 'en-us'

TIME_ZONE = 'UTC'

USE_I18N = True

USE_L10N = True

USE_TZ = True


# Static files (CSS, JavaScript, Images)
# https://docs.djangoproject.com/en/3.2/howto/static-files/

STATIC_URL = '/static/'
STATICFILES_DIRS = [
    os.path.join(BASE_DIR, 'static'),
]

# Default primary key field type
# https://docs.djangoproject.com/en/3.2/ref/settings/#default-auto-field

DEFAULT_AUTO_FIELD = 'django.db.models.BigAutoField'

LOGIN_URL = 'login'
LOGOUT_URL = 'logout'
LOGIN_REDIRECT_URL = 'dashboard'

from django.http import HttpResponse
from django.shortcuts import render
from django.contrib.auth import authenticate, login
from .forms import LoginForm
from django.contrib.auth.decorators import login_required
@login_required
def dashboard(request):
    return render(request, 'social_account/dashboard.html',{'section': 'dashboard'})

{% block title %} Dashboard {% endblock %}
{% block content %} 
{{section}}
    <h1> Dashboard </h1>
    <p> Welcome to your Account! </p>
{% endblock %}

{% load static %}
<!DOCTYPE html>
<html>
<head>
  <title>{% block title %}{% endblock %}</title>
  <link href="{% static "css/base.css" %}" rel="stylesheet">
</head>
<body>
  <div id="header">
    <span class="logo">Bookmarks</span>
    {% if request.user.is_authenticated %}
    <ul class="menu">
      <li {% if section == 'dashboard' %}class="selected" {% endif %}>
        <a href="{% url 'dashboard' %}">My dashboard</a>
      </li>
      <li {% if section == 'images' %}class="selected" {% endif %}>
        <a href="#">Images</a>
      </li>
      <li {% if section == "people" %}class="selected" {% endif %}>
        <a href="#">People</a>
      </li>
    </ul>
  {% endif %}
  <span class="user">
    {% if request.user.is_authenticated %}
      Hello {{ request.user.first_name }},
      <a href="{% url 'logout' %}">Logout</a>
    {% else %}
      <a href="{% url 'account:login' %}">Log-in</a>
    {% endif %}
  </span>
  </div>

  <div id="content">
    {% block content %}
    {% endblock %}
  </div>
</body>
</html>
url.py：（适用于应用程序）：

URL.py：（项目URL）：

dashboard.html：

INSTALLED_APPS = [
    'social_account.apps.SocialAccountConfig',
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
]

MIDDLEWARE = [
    'django.middleware.security.SecurityMiddleware',
    'django.contrib.sessions.middleware.SessionMiddleware',
    'django.middleware.common.CommonMiddleware',
    'django.middleware.csrf.CsrfViewMiddleware',
    'django.contrib.auth.middleware.AuthenticationMiddleware',
    'django.contrib.messages.middleware.MessageMiddleware',
    'django.middleware.clickjacking.XFrameOptionsMiddleware',
]

ROOT_URLCONF = 'social_mass_media.urls'

TEMPLATES = [
    {
        'BACKEND': 'django.template.backends.django.DjangoTemplates',
        'DIRS': [os.path.join(BASE_DIR, 'templates')],
        'APP_DIRS': True,
        'OPTIONS': {
            'context_processors': [
                'django.template.context_processors.debug',
                'django.template.context_processors.request',
                'django.contrib.auth.context_processors.auth',
                'django.contrib.messages.context_processors.messages',
            ],
        },
    },
]

WSGI_APPLICATION = 'social_mass_media.wsgi.application'


# Database
# https://docs.djangoproject.com/en/3.2/ref/settings/#databases

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.sqlite3',
        'NAME': BASE_DIR / 'db.sqlite3',
    }
}


# Password validation
# https://docs.djangoproject.com/en/3.2/ref/settings/#auth-password-validators

AUTH_PASSWORD_VALIDATORS = [
    {
        'NAME': 'django.contrib.auth.password_validation.UserAttributeSimilarityValidator',
    },
    {
        'NAME': 'django.contrib.auth.password_validation.MinimumLengthValidator',
    },
    {
        'NAME': 'django.contrib.auth.password_validation.CommonPasswordValidator',
    },
    {
        'NAME': 'django.contrib.auth.password_validation.NumericPasswordValidator',
    },
]


# Internationalization
# https://docs.djangoproject.com/en/3.2/topics/i18n/

LANGUAGE_CODE = 'en-us'

TIME_ZONE = 'UTC'

USE_I18N = True

USE_L10N = True

USE_TZ = True


# Static files (CSS, JavaScript, Images)
# https://docs.djangoproject.com/en/3.2/howto/static-files/

STATIC_URL = '/static/'
STATICFILES_DIRS = [
    os.path.join(BASE_DIR, 'static'),
]

# Default primary key field type
# https://docs.djangoproject.com/en/3.2/ref/settings/#default-auto-field

DEFAULT_AUTO_FIELD = 'django.db.models.BigAutoField'

LOGIN_URL = 'login'
LOGOUT_URL = 'logout'
LOGIN_REDIRECT_URL = 'dashboard'

from django.http import HttpResponse
from django.shortcuts import render
from django.contrib.auth import authenticate, login
from .forms import LoginForm
from django.contrib.auth.decorators import login_required
@login_required
def dashboard(request):
    return render(request, 'social_account/dashboard.html',{'section': 'dashboard'})

{% block title %} Dashboard {% endblock %}
{% block content %} 
{{section}}
    <h1> Dashboard </h1>
    <p> Welcome to your Account! </p>
{% endblock %}

{% load static %}
<!DOCTYPE html>
<html>
<head>
  <title>{% block title %}{% endblock %}</title>
  <link href="{% static "css/base.css" %}" rel="stylesheet">
</head>
<body>
  <div id="header">
    <span class="logo">Bookmarks</span>
    {% if request.user.is_authenticated %}
    <ul class="menu">
      <li {% if section == 'dashboard' %}class="selected" {% endif %}>
        <a href="{% url 'dashboard' %}">My dashboard</a>
      </li>
      <li {% if section == 'images' %}class="selected" {% endif %}>
        <a href="#">Images</a>
      </li>
      <li {% if section == "people" %}class="selected" {% endif %}>
        <a href="#">People</a>
      </li>
    </ul>
  {% endif %}
  <span class="user">
    {% if request.user.is_authenticated %}
      Hello {{ request.user.first_name }},
      <a href="{% url 'logout' %}">Logout</a>
    {% else %}
      <a href="{% url 'account:login' %}">Log-in</a>
    {% endif %}
  </span>
  </div>

  <div id="content">
    {% block content %}
    {% endblock %}
  </div>
</body>
</html>

{%block title%}仪表板{%endblock%}
{%block content%}
{{section}}
仪表板
欢迎使用您的帐户

{%endblock%}
base.html：

INSTALLED_APPS = [
    'social_account.apps.SocialAccountConfig',
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
]

MIDDLEWARE = [
    'django.middleware.security.SecurityMiddleware',
    'django.contrib.sessions.middleware.SessionMiddleware',
    'django.middleware.common.CommonMiddleware',
    'django.middleware.csrf.CsrfViewMiddleware',
    'django.contrib.auth.middleware.AuthenticationMiddleware',
    'django.contrib.messages.middleware.MessageMiddleware',
    'django.middleware.clickjacking.XFrameOptionsMiddleware',
]

ROOT_URLCONF = 'social_mass_media.urls'

TEMPLATES = [
    {
        'BACKEND': 'django.template.backends.django.DjangoTemplates',
        'DIRS': [os.path.join(BASE_DIR, 'templates')],
        'APP_DIRS': True,
        'OPTIONS': {
            'context_processors': [
                'django.template.context_processors.debug',
                'django.template.context_processors.request',
                'django.contrib.auth.context_processors.auth',
                'django.contrib.messages.context_processors.messages',
            ],
        },
    },
]

WSGI_APPLICATION = 'social_mass_media.wsgi.application'


# Database
# https://docs.djangoproject.com/en/3.2/ref/settings/#databases

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.sqlite3',
        'NAME': BASE_DIR / 'db.sqlite3',
    }
}


# Password validation
# https://docs.djangoproject.com/en/3.2/ref/settings/#auth-password-validators

AUTH_PASSWORD_VALIDATORS = [
    {
        'NAME': 'django.contrib.auth.password_validation.UserAttributeSimilarityValidator',
    },
    {
        'NAME': 'django.contrib.auth.password_validation.MinimumLengthValidator',
    },
    {
        'NAME': 'django.contrib.auth.password_validation.CommonPasswordValidator',
    },
    {
        'NAME': 'django.contrib.auth.password_validation.NumericPasswordValidator',
    },
]


# Internationalization
# https://docs.djangoproject.com/en/3.2/topics/i18n/

LANGUAGE_CODE = 'en-us'

TIME_ZONE = 'UTC'

USE_I18N = True

USE_L10N = True

USE_TZ = True


# Static files (CSS, JavaScript, Images)
# https://docs.djangoproject.com/en/3.2/howto/static-files/

STATIC_URL = '/static/'
STATICFILES_DIRS = [
    os.path.join(BASE_DIR, 'static'),
]

# Default primary key field type
# https://docs.djangoproject.com/en/3.2/ref/settings/#default-auto-field

DEFAULT_AUTO_FIELD = 'django.db.models.BigAutoField'

LOGIN_URL = 'login'
LOGOUT_URL = 'logout'
LOGIN_REDIRECT_URL = 'dashboard'

from django.http import HttpResponse
from django.shortcuts import render
from django.contrib.auth import authenticate, login
from .forms import LoginForm
from django.contrib.auth.decorators import login_required
@login_required
def dashboard(request):
    return render(request, 'social_account/dashboard.html',{'section': 'dashboard'})

{% block title %} Dashboard {% endblock %}
{% block content %} 
{{section}}
    <h1> Dashboard </h1>
    <p> Welcome to your Account! </p>
{% endblock %}

{% load static %}
<!DOCTYPE html>
<html>
<head>
  <title>{% block title %}{% endblock %}</title>
  <link href="{% static "css/base.css" %}" rel="stylesheet">
</head>
<body>
  <div id="header">
    <span class="logo">Bookmarks</span>
    {% if request.user.is_authenticated %}
    <ul class="menu">
      <li {% if section == 'dashboard' %}class="selected" {% endif %}>
        <a href="{% url 'dashboard' %}">My dashboard</a>
      </li>
      <li {% if section == 'images' %}class="selected" {% endif %}>
        <a href="#">Images</a>
      </li>
      <li {% if section == "people" %}class="selected" {% endif %}>
        <a href="#">People</a>
      </li>
    </ul>
  {% endif %}
  <span class="user">
    {% if request.user.is_authenticated %}
      Hello {{ request.user.first_name }},
      <a href="{% url 'logout' %}">Logout</a>
    {% else %}
      <a href="{% url 'account:login' %}">Log-in</a>
    {% endif %}
  </span>
  </div>

  <div id="content">
    {% block content %}
    {% endblock %}
  </div>
</body>
</html>

{%load static%}
{%block title%}{%endblock%}
书签
{%if request.user.u经过身份验证%}

    








{%endif%}
{%if request.user.u经过身份验证%}
你好{{request.user.first_name}}，
{%else%}
{%endif%}
{%block content%}
{%endblock%}
login.html

{% extends 'base.html' %}
{% block title %}Log-in{% endblock %}
{% block content %}
    <h1> Log-In </h1>
    {% if form.errors %}
        <p> Your username or password is incorrect, please try again! </p>
    {% else %}
        <p> Please Login to view your account </p>
    {% endif %}
    <div class='login-form'>
        <form action="{% url login %}" method="post">
            {{form.as_p}}
            {% csrf_token %}
            <input type='submit' value='Log-in'></p>
        </form>
    </div>
{% endblock %}

{%extends'base.html%}
{%block title%}登录{%endblock%}
{%block content%}
登录
{%if form.errors%}
您的用户名或密码不正确，请重试

{%else%}
请登录以查看您的帐户

{%endif%}
{{form.as_p}}
{%csrf_令牌%}


{%endblock%}
class=“selected”的错误在base.html第13行。我不明白为什么错了

提前感谢。

显示模板
login.html
@AbdulAzizBarkat，我已经添加了login.html文件，您要编写的
{%url'login%%}
带有引号，而不是
{%url login%}
，否则
login
被视为变量而不是字符串，因为上下文中不存在这样的变量，所以它的值被用作一个空字符串，给您一个错误。好的，这很有效，谢谢！！！