网站建设 教学论文,学做ps的软件的网站有哪些内容,wordpress加图片不显示,网站规划的认识Django中可以使用views进行管理#xff0c;类似于WPF的MVVM的ViewModel层#xff0c;也相当于MVC架构的模Controller层。
一、基于函数的视图FBV#xff08;Function-Based View#xff09;
通过定义一个函数#xff0c;包含HttpRequest对象作为参数#xff0c;用来接受…Django中可以使用views进行管理类似于WPF的MVVM的ViewModel层也相当于MVC架构的模Controller层。
一、基于函数的视图FBVFunction-Based View
通过定义一个函数包含HttpRequest对象作为参数用来接受客户端请求然后返回HttpResponse对象做为响应放回给客户端。
1.1 先定义一个模板文件
在template中定义一个模板文件persondetail.html !DOCTYPE html
html langen
headmeta charsetUTF-8meta nameviewport contentwidthdevice-width, initial-scale1.0titlePerson Details/title
/head
body{{ Person }}{{ Person.name }}{{ Person.phone }}
/body
/html
1.2 在views.py中创建一个函数person_detail def person_detail(request: HttpRequest, pk: int):Show person detailpk: the primarykey of person.try:p Person.objects.get(pkpk)except Person.DoesNotExist:raise Http404(Person Does Not Exist.)return render(request, persondetail.html, {Person: p})1.3 在urls.py中添加新的url
from django.urls import path, re_path
from serverapp import views as serverapp_viewsurlpatterns [path(test/2023, serverapp_views.test), # 精确匹配path(converter/int:num, serverapp_views.converter), # 格式转换re_path(r^re/(?Pnum[0-9]{1,4})/$, serverapp_views.rematch), # 正则表达式,通过添加起止符限制匹配避免中间多级路径后匹配到造成错误匹配。path(person, serverapp_views.get_person), # 获取人员信息path(personform, serverapp_views.get_personform), # 使用表单获取人员信息path(person_detail/int:pk, serverapp_views.person_detail) # 视图演示展示人员信息
]1.4 运行软件在客户端访问 二、基于类的视图CBVClass-Based View
基于类的视图与基于函数的视图大同小异只不过是使用类代替函数。
2.1 再views.py文件中定义类
class PersonDetailView(View):人员信息视图类form_class PersonForm # 定义表单类initial {key:value} # 定义表单初始值tamplate_name personform.html # templage file namedef get(self, request: HttpRequest, *args, **kwargs):Get method# 渲染表单return render(request, self.tamplate_name, {personform: self.form_class(initial self.initial)})def post(self, request: HttpRequest, *args, **kwargs):POST methodform self.form_class(request.POST)if form.is_valid():# get dataname form.cleaned_data[name]phone form.cleaned_data[phone]return HttpResponse(fThe peson name is {name}, phone is {phone})return render(request, self.tamplate_name, {personform: form})
2.2 注册新的url
from django.urls import path, re_path
from serverapp import views as serverapp_viewsurlpatterns [path(test/2023, serverapp_views.test), # 精确匹配path(converter/int:num, serverapp_views.converter), # 格式转换re_path(r^re/(?Pnum[0-9]{1,4})/$, serverapp_views.rematch), # 正则表达式,通过添加起止符限制匹配避免中间多级路径后匹配到造成错误匹配。path(person, serverapp_views.get_person), # 获取人员信息path(personform, serverapp_views.get_personform), # 使用表单获取人员信息path(person_detail/int:pk, serverapp_views.person_detail) , # 视图演示展示人员信息path(personformview, serverapp_views.PersonDetailView.as_view()) # 基于类的视图
]2.3 定义html文件
!DOCTYPE html
html langen
headmeta charsetUTF-8meta nameviewport contentwidthdevice-width, initial-scale1.0titleUser Name/title
/head
body!--action 是访问的url--form action/serverapp/personformview methodpost{% csrf_token %} !--防止跨域攻击--{{ personform }} !--引用表单views函数中定义的名称一致--button typesubmit提交/button/form
/body
/html
2.4 访问服务器
