介绍 ： django项目开发必须懂的知识点，下面使用的数据库是mysql ,
models.py 数据库表结构，
# -*- coding: utf-8 -*-
from __future__ import unicode_literals
from django.db import models
# Create your models here.
class Test(models.Model):
name = models.CharField(max_length=20)
1、GET 请求：
urls.py
"""pythondjango URL Configuration
The `urlpatterns` list routes URLs to views. For more information please see:
https://docs.djangoproject.com/en/1.11/topics/http/urls/
Examples:
Function views
1. Add an import: from my_app import views
2. Add a URL to urlpatterns: url(r'^$', views.home, name='home')
Class-based views
1. Add an import: from other_app.views import Home
2. Add a URL to urlpatterns: url(r'^$', Home.as_view(), name='home')
Including another URLconf
1. Import the include() function: from django.conf.urls import url, include
2. Add a URL to urlpatterns: url(r'^blog/', include('blog.urls'))
"""
from django.conf.urls import url
from django.contrib import admin
from BlogDjango import views
from polls import views as pollsviews, search, search2
urlpatterns = [
url(r'^admin/', admin.site.urls),
url(r'^hello/+d', views.hello),
url(r'^base/', views.base),
url(r'^testdb$', pollsviews.testdb),
url(r'^querydb$', pollsviews.selectDB),
url(r'^updateDB$', pollsviews.updateDB),
url(r'^deleteDB$', pollsviews.deleteDB),
url(r'^search-form$', search.search_form),
url(r'^search$', search.search),
url(r'^search-post$', search2.search_post),
]
新建一个search.py
# -*- coding: utf-8 -*-
from django.http import HttpResponse
from django.shortcuts import render_to_response
# 表单
def search_form(request):
return render_to_response('search_form.html')
# 接收请求数据
def search(request):
request.encoding = 'utf-8'
print request.GET
if 'q' in request.GET:
message = '你搜索的内容为: ' + request.GET['q']
else:
message = '你提交了空表单'
return HttpResponse(message)
创建一个页面
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>菜鸟教程(runoob.com)</title>
</head>
<body>
<form action="/search" method="get">
<input type="text" name="q">
<input type="submit" value="搜索">
</form>
</body>
</html>
结果：
1、
2、
2、POST请求（重要）
注意：请求之后，经过我们自己的逻辑处理后，如何返回到页面并且解析：
新建一个search2.py
# -*- coding: utf-8 -*-
from django.shortcuts import render
from django.views.decorators import csrf
# 接收POST请求数据
def search_post(request):
ctx = {'rlt': 10000}
print request.POST
if request.POST:
ctx['rlt'] = request.POST['q']
return render(request, "post.html", ctx)
urls.py
"""pythondjango URL Configuration
The `urlpatterns` list routes URLs to views. For more information please see:
https://docs.djangoproject.com/en/1.11/topics/http/urls/
Examples:
Function views
1. Add an import: from my_app import views
2. Add a URL to urlpatterns: url(r'^$', views.home, name='home')
Class-based views
1. Add an import: from other_app.views import Home
2. Add a URL to urlpatterns: url(r'^$', Home.as_view(), name='home')
Including another URLconf
1. Import the include() function: from django.conf.urls import url, include
2. Add a URL to urlpatterns: url(r'^blog/', include('blog.urls'))
"""
from django.conf.urls import url
from django.contrib import admin
from BlogDjango import views
from polls import views as pollsviews, search, search2
urlpatterns = [
url(r'^admin/', admin.site.urls),
url(r'^hello/+d', views.hello),
url(r'^base/', views.base),
url(r'^testdb$', pollsviews.testdb),
url(r'^querydb$', pollsviews.selectDB),
url(r'^updateDB$', pollsviews.updateDB),
url(r'^deleteDB$', pollsviews.deleteDB),
url(r'^search-form$', search.search_form),
url(r'^search$', search.search),
url(r'^search-post$', search2.search_post),
]
post.html
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>菜鸟教程(runoob.com)</title>
</head>
<body>
<form action="/search-post" method="post">
{% csrf_token %}
<input type="text" name="q">
<input type="submit" value="Submit">
</form>
<p>{{ rlt }}</p>
</body>
</html>
结果：
注意：
在模板的末尾，我们增加一个 rlt 记号，为表格处理结果预留位置。
表格后面还有一个{% csrf_token %}的标签。csrf 全称是 Cross Site Request Forgery。这是Django提供的防止伪装提交请求的功能。POST 方法提交的表格，必须有此标签。