Django View视图完整教程：函数视图与类视图详解 - 零基础入门指南

from django.http import HttpResponse, JsonResponse
from django.shortcuts import render, redirect

def index(request):
    """首页视图"""
    return HttpResponse('欢迎访问首页')

def about(request):
    """关于页面"""
    context = {'title': '关于我们', 'content': '这是一个Django项目'}
    return render(request, 'about.html', context)

def api_data(request):
    """API视图"""
    data = {'name': 'Django', 'version': '5.0'}
    return JsonResponse(data)

def redirect_view(request):
    """重定向视图"""
    return redirect('/about/')

from django.views import View
from django.http import HttpResponse, JsonResponse

class HelloView(View):
    """基础类视图"""
    def get(self, request):
        return HttpResponse('Hello from CBV!')

    def post(self, request):
        name = request.POST.get('name', 'Guest')
        return JsonResponse({'message': f'Hello, {name}!'})

from django.urls import path
from .views import HelloView

urlpatterns = [
    path('hello/', HelloView.as_view(), name='hello'),
]

from django.views.generic import ListView, DetailView
from .models import Article

class ArticleListView(ListView):
    """文章列表视图"""
    model = Article
    template_name = 'article_list.html'
    context_object_name = 'articles'
    paginate_by = 10

    def get_queryset(self):
        return super().get_queryset().filter(status='published')

class ArticleDetailView(DetailView):
    """文章详情视图"""
    model = Article
    template_name = 'article_detail.html'
    context_object_name = 'article'

    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)
        context['related_articles'] = Article.objects.filter(
            category=self.object.category
        ).exclude(pk=self.object.pk)[:5]
        return context

from django.views import View
from django.shortcuts import render, redirect
from django.contrib import messages

class ContactView(View):
    """联系表单视图"""
    def get(self, request):
        return render(request, 'contact.html')

    def post(self, request):
        name = request.POST.get('name', '')
        email = request.POST.get('email', '')
        message = request.POST.get('message', '')

        if not name or not email:
            messages.error(request, '姓名和邮箱不能为空')
            return render(request, 'contact.html', {
                'name': name, 'email': email, 'message': message
            })

        # 处理表单数据（保存到数据库或发送邮件）...
        messages.success(request, '提交成功！')
        return redirect('contact')