session project file:
templates template:
login.html
1 {% load static %} 2 <!DOCTYPE html> 3 <html lang="en"> 4 <head> 5 <meta charset="UTF-8"> 6 <title>login</title> 7 </head> 8 <body> 9 <div> 10 用户名：<input type="text" id="username"><br> 11 密码：<input type="password" id="password"> <br> 12 <button id="submit">登录</button><pan id="warning" style="color: red"></pan> 13 {% csrf_token %} 14 </div> 15 </body> 16 <script src="{% static 'jquery-3.4.1.js' %}"></script> . 17 {# <-! <Script the src = "{% static 'JS / login.js'}%"> </ Script> -> <-! Ajax have the url reverse analysis, only put in html template -> #} 18 is < Script > . 19 $ ( function () { 20 is $ ( ' #submit ' ) .click ( function () { 21 is $ .ajax ({ 22 is URL: " {% URL 'Login '}% " , 23 is type: ' POST ' , 24 Data: { 25 username:$('#username').val(), 26 password:$('#password').val(), 27 csrfmiddlewaretoken:$('input[name=csrfmiddlewaretoken]').val(),//可以直接放在headers里边 28 }, 29 success:function (response) { 30 console.log(response) 31 if (response.status===0){ 32 //$ ( '# submit'). after ( '<span> <i> account number or password is incorrect </ I> </ span> ") 33 is $ ( ' #warning ' ) .text ( ' account number or password is incorrect " ) 34 is } the else IF (Response.Status === . 1 ) { 35 the location.href = response.url 36 } 37 [ } 38 is }) 39 }) 40 }); 41 is </ Script > 42 is </html>
index.html
1 <!DOCTYPE html> 2 <html lang="en"> 3 <head> 4 <meta charset="UTF-8"> 5 <title>index</title> 6 </head> 7 <body> 8 <div> 9 <h1>欢迎来到首页</h1> 10 </div> 11 <a href='{% url 'more' %}'>more</a> 12 </body> 13 </html>
more.html
1 <!DOCTYPE html> 2 <html lang="en"> 3 <head> 4 <meta charset="UTF-8"> 5 <title>more</title> 6 </head> 7 <body> 8 <div><h1>更多信息</h1></div> 9 </body> 10 </html>
viwes.py
1 from django.shortcuts import render,redirect 2 from django.http import JsonResponse 3 from django.urls import reverse 4 # Create your views here. 5 def login(request): 6 if request.method=='GET': 7 return render(request,'login.html') 8 elif request.method=='POST': 9 name=request.POST.get('username') 10 psd=request.POST.get('password') 11 if name=='yang' and psd=='123': 12 #在使用session之前必须在数据库创建相关的表(django_session) 13 #调用request.session首先会接收请求头部的cookie是否有sessionid，进行表查询对比 14 #如果有重新生成一个sessionid进行覆盖更新记录， 15 # 没有则新建存进表中的session_key,同时将字典信息加密自动存进表中的session_data字段 16 request.session['status']=True 17 request.session['name']=name 18 status=1 19 url=reverse('index') 20 else: 21 status=0 22 url='' 23 return JsonResponse({'status':status,'url':url}) 24 25 def login_auth(func): 26 def inner(request): 27 if request.session.get('status'):#在判断网页请求的状态时，直接调用request.session从djang_session表中读取数据验证 28 return func(request) 29 else: 30 return redirect('login') 31 return inner 32 @login_auth 33 def index(request): 34 return render(request,'index.html') 35 36 @login_auth 37 def more(request): 38 # request.session.flush()#同时删除客户端和服务端的session 39 return render(request,'more.html')
urls.py
1 from django.conf.urls import url 2 from django.contrib import admin 3 from app01 import views 4 5 urlpatterns = [ 6 url(r'^admin/', admin.site.urls), 7 url(r'^login/', views.login, name='login'), 8 url(r'^index/', views.index, name='index'), 9 url(r'^more/', views.more, name='more'), 10 ]