Django-views
一：需求介绍
1.本篇博客主要是想实现一个：通过Django创建一个项目，目的： 三个界面，用户登录界面，用户注册界面，用户登录成功之后的个人页。本篇功能很简单，就是简单的时间页面的跳转，主要以练习为主。
首先：我们先把项目创建好，这里我创建的Django的项目名为：mysite_views,并且创建一个应用项目：app01. 两种创建方式：
一：图形界面
二：命令行
注意：要在对应的目录路径下创建。
创建项目名： django-admin startproject 项目名称 mysite_views
创建一个应用： python manage.py startapp 应用名称 app01
注意：同时装了两个版本的pycharm，创建一个应用要用 python3 manage.py startapp 应用名称 app01
创建好之后，对应的目录格式如下图：
然后：展示下各主要文件的代码。
urls.py ：映射关系
"""mysite_views 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 app01 import views #导入模块
urlpatterns = [
url(r'^admin/', admin.site.urls),
url(r'^login.html/',views.login), #用户登录
url(r'^register.html/',views.register), # 用户注册
url(r'^index.html',views.index) #登录成功之后的个人页
]
views.py: 视图逻辑处理
from django.shortcuts import render,HttpResponse,redirect
# Create your views here.
# 1.登录
def login(request):
print('----------------------------------->',)
if request.method == "POST":
username = request.POST.get("user")
password = request.POST.get("pwd")
print('----------------------------------->',username,password)
import pymysql
# 连接数据库
conn = pymysql.connect(host="" ,port=3306,user="root",passwd="",db="s6")
# 创建游标
cur=conn.cursor()
sql = "select * from userinfo where name = '%s' and password = '%s'" %(username,password)
ret = cur.execute(sql)
print('----------------------------------->')
if ret:
print('----------------------------------->login')
return redirect ("/index.html/?name=%s"%username)
else:
return render(request,"login.html")
# 3.跳转页面
# return HttpResponse('ok')
return render(request,"login.html")
# 2注册
def register(request):
if request.method == "POST":
# 1.取数据
username = request.POST.get("user")
passwd = request.POST.get("pwd")
# 2.存放数据库
import pymysql
# # 连接数据库
conn = pymysql.connect(host='', port=3306, user='root', passwd='', db='s6') # db：库名
# # 创建游标
cur = conn.cursor()
sql = "select * from userinfo where NAME='%s' AND password='%s'" % (username, passwd)
ret = cur.execute(sql)
if ret:
return render(request,"register.html")
else:
ss = 'insert into userinfo (name,password) value ("%s","%s")' % (username, passwd)
print(ss)
cur.execute(ss)
conn.commit()
# 关闭指针对象
cur.close()
# 关闭连接对象
conn.close()
return redirect("/login.html/")
# 3.跳转页面
return redirect("/login.html/")
return render(request,"register.html")
# 3.个人页
def index(request):
# print("GET", request.POST)
# user = request.GET.get("username")
# n = user
# print(request.get_full_path())
ret = request.GET.get('name')
print(request.GET.get('name'))
# return HttpResponse('ok')
return render(request,"index.html",{"n":ret})
templates下的前端页面：
login.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>login</title>
</head>
<body>
<form action="" method="post">
<h1>登录页面</h1>
<p>用户名<input type="username" name="user"></p>
<p>密码   <input type="password" name="pwd"></p>
<input type="submit" value="登录">
</form>
</body>
</html>
register.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>注册</title>
</head>
<body>
<form action="/register.html/" method="post">
<h1>注册页面</h1>
<p>用户名<input type="text" name="user"></p>
<p>密码   <input type="password" name="pwd"></p>
<input type="submit" value="确认注册">
</form>
</body>
</html>
index.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Title</title>
</head>
<body>
<h1>Hello {{ n }}
welcome come to plase! </h1>
</body>
</html>
注意事项：
setting里的配置文件：
运行代码：
启动： python manage.py runserver 8080
成功进入到个人页面。