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本篇內(nèi)容介紹了“如何用Vue+Django獨(dú)立開發(fā)電商”的有關(guān)知識(shí),在實(shí)際案例的操作過程中,不少人都會(huì)遇到這樣的困境,接下來就讓小編帶領(lǐng)大家學(xué)習(xí)一下如何處理這些情況吧!希望大家仔細(xì)閱讀,能夠?qū)W有所成!
在myproject下的settings.py配置文件中,把默認(rèn)的sqllite3數(shù)據(jù)庫(kù)換成我們的mysql數(shù)據(jù)庫(kù)
# Database # https://docs.djangoproject.com/en/1.11/ref/settings/#databases DATABASES = { 'default': { 'ENGINE': 'django.db.backends.mysql', 'NAME': 'myproject', 'USER': 'root', 'PASSWORD': 'root', 'HOST': '127.0.0.1', }}
并把a(bǔ)pp加入到installed_apps列表里:
INSTALLED_APPS = [ 'django.contrib.admin', 'django.contrib.auth', 'django.contrib.contenttypes', 'django.contrib.sessions', 'django.contrib.messages', 'django.contrib.staticfiles', 'myapp',]
4、 在app目錄下的models.py里我們簡(jiǎn)單寫一個(gè)model如下:
# -*- coding: utf-8 -*-from __future__ import unicode_literalsfrom django.db import models # Create your models here.class Book(models.Model): book_name = models.CharField(max_length=64) add_time = models.DateTimeField(auto_now_add=True) def __unicode__(self): return self.book_name
只有兩個(gè)字段,書名book_name和添加時(shí)間add_time。如果沒有指定主鍵的話django會(huì)自動(dòng)新增一個(gè)自增id作為主鍵
5、 在app目錄下的views里我們新增兩個(gè)接口,一個(gè)是show_books返回所有的書籍列表(通過JsonResponse返回能被前端識(shí)別的json格式數(shù)據(jù)),二是add_book接受一個(gè)get請(qǐng)求,往數(shù)據(jù)庫(kù)里添加一條book數(shù)據(jù):
# Create your views here.@require_http_methods(["GET"])def add_book(request): response = {} try: book = Book(book_name=request.GET.get('book_name')) book.save() response['msg'] = 'success' response['error_num'] = 0 except Exception,e: response['msg'] = str(e) response['error_num'] = 1 return JsonResponse(response)@require_http_methods(["GET"])def show_books(request): response = {} try: books = Book.objects.filter() response['list'] = json.loads(serializers.serialize("json", books)) response['msg'] = 'success' response['error_num'] = 0 except Exception,e: response['msg'] = str(e) response['error_num'] = 1 return JsonResponse(response)
可以看出,在ORM的幫忙下,我們的接口實(shí)際上不需要自己去組織SQL代碼
6、 在app目錄下,新增一個(gè)urls.py文件,把我們新增的兩個(gè)接口添加到路由里:
from django.conf.urls import url, include import views
urlpatterns = [ url(r'add_book$', views.add_book, ), url(r'show_books$', views.show_books, ), ]
我們還要把a(bǔ)pp下的urls添加到project下的urls中,才能完成路由:
from django.conf.urls import url, includefrom django.contrib import adminfrom django.views.generic import TemplateViewimport myapp.urls urlpatterns = [ url(r'^admin/', admin.site.urls), url(r'^api/', include(myapp.urls)), url(r'^$', TemplateView.as_view(template_name="index.html")),]
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