Django REST框架API出现在ConnectionDoesNotExist中
我正在学习使用Django rest框架的解耦Django,并对web开发做出反应。数据库是PostgreSQL 我已经配置了API,当我运行时,它看起来很好: 但是,如果单击此API()中的链接,它将失败: 我不知道发生了什么事 我的后端/url.py是:Django REST框架API出现在ConnectionDoesNotExist中,django,reactjs,postgresql,django-rest-framework,Django,Reactjs,Postgresql,Django Rest Framework,我正在学习使用Django rest框架的解耦Django,并对web开发做出反应。数据库是PostgreSQL 我已经配置了API,当我运行时,它看起来很好: 但是,如果单击此API()中的链接,它将失败: 我不知道发生了什么事 我的后端/url.py是: from django.conf.urls import include, url from django.contrib import admin from rest_framework import routers from to
from django.conf.urls import include, url
from django.contrib import admin
from rest_framework import routers
from todos import views
router = routers.DefaultRouter()
router.register(r'todos', views.TodoView,'todo')
urlpatterns = [
# url(r'^', include('todos.urls')),
url(r'^api/', include(router.urls)),
url(r'^admin/', include(admin.site.urls)),
]
我的backend/settings.py是:
# Build paths inside the project like this: os.path.join(BASE_DIR, ...)
import os
BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
# Quick-start development settings - unsuitable for production
# See https://docs.djangoproject.com/en/1.8/howto/deployment/checklist/
# SECURITY WARNING: keep the secret key used in production secret!
SECRET_KEY = 'igphn#&4b(67(*=!u)lr1wr=jtfhvgwc03nl&5+t7m18%-#ttm'
# SECURITY WARNING: don't run with debug turned on in production!
DEBUG = True
ALLOWED_HOSTS = []
# Application definition
INSTALLED_APPS = (
'django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
'rest_framework',
'todos',
'corsheaders',
)
MIDDLEWARE_CLASSES = (
'django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.common.CommonMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.auth.middleware.SessionAuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware',
'django.middleware.clickjacking.XFrameOptionsMiddleware',
'django.middleware.security.SecurityMiddleware',
'corsheaders.middleware.CorsMiddleware',
)
ROOT_URLCONF = 'backend.urls'
TEMPLATES = [
{
'BACKEND': 'django.template.backends.django.DjangoTemplates',
'DIRS': [],
'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 = 'backend.wsgi.application'
# Database
# https://docs.djangoproject.com/en/1.8/ref/settings/#databases
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.postgresql_psycopg2',
'NAME': 'todos',
'USER': 'luyaoye',
'PASSWORD': '1234567',
'HOST': 'localhost',
'PORT':'5432'
}
}
# Internationalization
# https://docs.djangoproject.com/en/1.8/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/1.8/howto/static-files/
STATIC_URL = '/static/'
# whitelist localhost:3000 where frontend will be served
CORS_ORIGIN_WHITELIST = ('localhost:3000/')
REST_FRAMEWORK = {
'DEFAULT_PAGINATION_CLASS': 'rest_framework.pagination.PageNumberPagination',
'PAGE_SIZE': 20
}
我的todos/serializers.py是:
from rest_framework import serializers
from .models import Todos
class TodoSerializer(serializers.HyperlinkedModelSerializer):
class Meta:
model=Todos
fields=['id','title','notes','created_at','completed',]
我的todos/views.py是:
from django.shortcuts import render
from rest_framework import viewsets
from .serializers import TodoSerializer
from .models import Todos
class TodoView(viewsets.ModelViewSet):
serializer_class = TodoSerializer
queryset = Todos.objects.using('todos').all()
我的todos/models.py是:
from django.db import models
class Todos(models.Model):
title = models.CharField(max_length=100,blank=False)
notes = models.CharField(max_length=1000, blank=True)
created_at = models.DateTimeField(auto_now_add=True)
completed = models.BooleanField(default=False)
def __str__(self):
# display todos brief
return self.title
我的PostgreSQL数据库也在本地运行,并且具有以下数据:
任何人都可以提供帮助???在您的TodoView的queryset属性中,您不必使用('todos')部分编写
using()
适用于具有多个数据库的应用程序,并告诉django使用不同的数据库连接(默认情况下,它使用databases['default']
)。
因此,如果您使用part删除,那么一切都应该正常工作。您的Rest端点在哪里?pythin代码中应该有/api/todos
。在使用前端进行测试之前,使用postman应用程序测试您的Rest端点。也可以在youtube上寻找traversymedia频道,因为他有一段python视频解释Rest端攻击。干杯/api/todos
未由路由器.register(r'todos',views.TodoView,'todo')处理?我在遵循一个这样做的教程。但无论如何,我重写了剩余端点,将路由器部分移动到todos/url.py
,并在后端/url.py
中添加urlpatterns=router.url
,最后,我用url(r'^api/),include('todos.url')
重新计算了url(r'^api/),include(router.url))
,然后问题得到了解决。