標籤：自訂 ora splay csr install model pass 使用者名稱 port
Django知識補充之CBVDjango:
url --> def函數 FBV[function based view] 用函數和URL進行匹配
url --> 類 CBV[function based view] 用類和URL進行匹配
POSTMAN外掛程式
http://blog.csdn.net/zzy1078689276/article/details/77528249
基於CBV的登入執行個體：
settings.py
INSTALLED_APPS = [ ... ‘app01‘, # 註冊app]STATICFILES_DIRS = (os.path.join(BASE_DIR, "statics"),) # 現添加的配置,這裡是元組，注意逗號TEMPLATES = [ ... ‘DIRS‘: [os.path.join(BASE_DIR, ‘templates‘)],]
urls.py
from django.contrib import adminfrom django.urls import pathfrom django.conf.urls import url, includefrom app01 import viewsurlpatterns = [ # 基於CBV的登入 # url(r‘^login.html/‘, views.login), # 原來基於函數 url(r‘^login.html/‘, views.Login.as_view()), # 現在基於類名.as_view()]
views.py
from django.shortcuts import render, redirectfrom app01 import models# 基於CBV的登入,需要匯入viewsfrom django import viewsclass Login(views.View): # http_method_names = [‘get‘, ‘post‘, ‘put‘, ‘patch‘, ‘delete‘, ‘head‘, ‘options‘, ‘trace‘] def get(self, request, *args, **kwargs): print(request.method, ‘GGGGGGGGGGGG‘) message = ‘‘ return render(request, ‘login.html‘, {‘message‘: message}) # 這裡是網頁html def post(self, request, *args, **kwargs): print(request.method, ‘OOOOOOOOOOOOO‘) username = request.POST.get("user") password = request.POST.get("pass") print(‘username: %s, password:%s‘ % (username, password)) # obj = models.Administrator.objects.filter(username=username, password=password).count() # if obj: 從資料庫內取出資料，進行判斷也可以 if username == ‘root‘ and password == ‘root‘: req = redirect(‘/index.html/‘) # 接收redirect對象，# 這裡是瀏覽器路徑，偽靜態 # req.set_cookie(‘username‘, username, max_age=10) # 設定逾時時間10s import datetime timeout = datetime.datetime.now() + datetime.timedelta(seconds=10) req.set_cookie(‘username‘, username, max_age=10, expires=timeout) # IE設定逾時時間10s return req # return redirect(‘/index.html‘) # 與上面3行同，只是添加了Cookie else: message = ‘使用者名稱或密碼錯誤‘ return render(request, ‘login.html‘, {‘message‘: message}) # 這裡是網頁html
templates/login.html
<!DOCTYPE html><html lang="en"><head> <meta charset="UTF-8"> <title>Title</title></head><body> {# 偽靜態#} <form action="/login.html/" method="post"> {% csrf_token %} {# 為跨站請求 #} <div> <label for="user">使用者名稱</label> <input id="user" name="user" type="text"> </div> <div> <label for="pass">密 碼</label> <input id="pass" name="pass" type="password"> </div> <div> <label></label> <input value="登入" type="submit"> <span style="color: red">{{ message }}</span> </div> </form></body></html>
templates/index.html
<!DOCTYPE html><html lang="en"><head> <meta charset="UTF-8"></head><body> <h2>hello, {{ username }}</h2></body></html>
頁面顯示:
CBV基於裝飾器的使用<一> ---基於Python舊方法
CBV基於裝飾器的使用<一> ---基於Python舊方法
裝飾器：函數執行之前/後可以增加擴充功能
有多個方法的時候，必須給每個方法添加裝飾器哈
CBV的反射原理
單一裝飾器
views.py
from django.shortcuts import render, redirectfrom app01 import models# 基於CBV的登入,需要匯入viewsfrom django import viewsfrom django.utils.decorators import method_decorator # 匯入裝飾器# 基於CBV的裝飾器的使用def outer(func): def inner(request, *args, **kwargs): print(request.method) return func(request, *args, **kwargs) return innerclass Login(views.View): # http_method_names = [‘get‘, ‘post‘, ‘put‘, ‘patch‘, ‘delete‘, ‘head‘, ‘options‘, ‘trace‘] @method_decorator(outer) def get(self, request, *args, **kwargs): message = ‘‘ return render(request, ‘login.html‘, {‘message‘: message}) # 這裡是網頁html @method_decorator(outer) def post(self, request, *args, **kwargs): username = request.POST.get("user") password = request.POST.get("pass") print(‘username: %s, password:%s‘ % (username, password)) # obj = models.Administrator.objects.filter(username=username, password=password).count() # if obj: 從資料庫內取出資料，進行判斷也可以 if username == ‘root‘ and password == ‘root‘: req = redirect(‘/index.html/‘) # 接收redirect對象，# 這裡是瀏覽器路徑，偽靜態 # req.set_cookie(‘username‘, username, max_age=10) # 設定逾時時間10s import datetime timeout = datetime.datetime.now() + datetime.timedelta(seconds=10) req.set_cookie(‘username‘, username, max_age=10, expires=timeout) # IE設定逾時時間10s return req # return redirect(‘/index.html‘) # 與上面3行同，只是添加了Cookie else: message = ‘使用者名稱或密碼錯誤‘ return render(request, ‘login.html‘, {‘message‘: message}) # 這裡是網頁htmlCBV基於裝飾器的使用<二> --基於Django的dispatch[多個裝飾器]
CBV基於裝飾器的使用<二> --基於Django的dispatch[多個裝飾器]
如果對某一種請求做處理： 單一裝飾器
如果對所有的請求做處理： dispatch單一裝飾器
添加裝飾器有2中方法:
1.類上添加
2.方法上添加
自訂轉寄dispatch函數
from django import viewsfrom django.utils.decorators import method_decorator # 匯入裝飾器class Login(views.View): # http_method_names = [‘get‘, ‘post‘, ‘put‘, ‘patch‘, ‘delete‘, ‘head‘, ‘options‘, ‘trace‘] # 自訂轉寄站，URL進來都在此處進行URL轉寄，我們可以有一些預操作[函數驗證可以放此處] def dispatch(self, request, *args, **kwargs): print(‘自訂dispatch: 前‘) # if request.method == ‘POST‘: # return HttpResponse("Good Bye") # 預操作處理 # 請求先到Login的dispatch，然後調用父類的dispatch，返回結果給了obj obj = super(Login, self).dispatch(request, *args, **kwargs) # 自訂轉寄且調用父類dispatch # 將父類的返回結果返回給介面，否則介面報錯 print(‘自訂dispatch: 後‘) return obj def get(self, request, *args, **kwargs): message = ‘‘ return render(request, ‘login.html‘, {‘message‘: message}) # 這裡是網頁html ...同上
Python學習---django知識補充之CBV
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