Django入門:登入、註冊、退出
阿新 • • 發佈:2018-12-31
廢話不多說,直接上操作
- 一、建立專案
django-admin startproject form_test
- 二、建立應用
cd form_test
sudo ./manage.py startapp form_app
- 三、配置應用
vim setting.py
#在INSTALLED_APPS新增剛建立的應用('form_app')
- 四、建立url(form_test/urls.py)
#form_test/urls.py
from django.conf.urls import patterns, include, url
from django.contrib import admin
urlpatterns = patterns('',
# Examples:
# url(r'^$', 'form_test.views.home', name='home'),
# url(r'^blog/', include('blog.urls')),
url(r'^admin/', include(admin.site.urls)),
url(r'^$', 'form_app.views.login',name='login'),
url(r'^login/$', 'form_app.views.login',name='login' ),
url(r'^regist/$', 'form_app.views.regist',name='regist'),
url(r'^index/$', 'form_app.views.index',name='index'),
url(r'^logout/$', 'form_app.views.logout',name='logout'),
url(r'^share/$', 'form_app.views.share',name='share'),
)
- 五、建立資料庫物件(form_app/models.py)
from django.db import models
# Create your models here.
class User(models.Model):
username = models.CharField(max_length=50)
password = models.CharField(max_length=50)
def __unicode__(self):
return self.username
- 六、編寫檢視(/form_app/views.py)
#coding:utf-8
from django.shortcuts import render,render_to_response
from django import forms
from django.http import HttpResponse,HttpResponseRedirect
from django.template import RequestContext
from models import User
# Create your views here.
#表單
class UserForm(forms.Form):
username = forms.CharField(label='使用者名稱',max_length=100)
password = forms.CharField(label='密__碼',widget=forms.PasswordInput())
def regist(req):
if req.method == 'POST':
uf = UserForm(req.POST)
if uf.is_valid():
#獲取表單資料
username = uf.cleaned_data['username']
password = uf.cleaned_data['password']
#新增到資料庫
#User.objects.get_or_create(username = username,password = password)
registAdd = User.objects.get_or_create(username = username,password = password)[1]
if registAdd == False:
#return HttpResponseRedirect('/share/')
return render_to_response('share.html',{'registAdd':registAdd,'username':username})
else:
return render_to_response('share.html',{'registAdd':registAdd})
else:
uf = UserForm()
return render_to_response('regist.html',{'uf':uf},context_instance=RequestContext(req))
def login(req):
if req.method == 'POST':
uf = UserForm(req.POST)
if uf.is_valid():
username = uf.cleaned_data['username']
password = uf.cleaned_data['password']
#對比提交的資料與資料庫中的資料
user = User.objects.filter(username__exact = username,password__exact = password)
if user:
#比較成功,跳轉index
response = HttpResponseRedirect('/index/')
#將username寫入瀏覽器cookie,失效時間為3600
response.set_cookie('username',username,3600)
return response
else:
return HttpResponseRedirect('/login/')
else:
uf = UserForm()
return render_to_response('login.html',{'uf':uf},context_instance=RequestContext(req))
#登入成功
def index(req):
username = req.COOKIES.get('username','')
return render_to_response('index.html',{'username':username})
#退出登入
def logout(req):
response = HttpResponse('logout!!!')
#清除cookie裡儲存的username
response.delete_cookie('username')
return response
def share(req):
if req.method == 'POST':
uf = UserForm(req.POST)
if uf.is_valid():
username = uf.cleaned_data['username']
password = uf.cleaned_data['password']
return render_to_response('share.html',{'username':username})
else:
uf = UserForm()
return render_to_response('share.html',{'uf':uf})
- 七、建立templates(form_app/templates)
cd templates
sudo touch share.html regist.html login.html logout.html index.html
# vim share.html
{{registAdd}}
<br>
==================
<br>
{% if username %}
註冊失敗{{username}}已存在
<a href="http://127.0.0.1:8000/regist">註冊</a>
{% else %}
註冊成功!
<a href="http://127.0.0.1:8000/login">登入</a>
{% endif %}
# vim regist.html
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Regist</title>
</head>
<body>
<h1>註冊頁面</h1>
<form method="post" enctype="multipart/form-data">
{% csrf_token %}
{{uf.as_p}}
<input type="submit" value="ok"></input>
</form>
<a href="http://127.0.0.1:8000/login">登入</a>
</body>
</html>
# vim login.html
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Login</title>
</head>
<body>
<h1>登入頁面</h1>
<form method="post" enctype="multipart/form-data">
{% csrf_token %}
{{uf.as_p}}
<input type="submit" value="ok"></input>
</form>
<a href="http://127.0.0.1:8000/regist">註冊</a>
</body>
</html>
# vim index.html
<!DOCTYPE html>
<html>
<head>
<title>index</title>
</head>
<body>
<h1>Welcome {{ username }}!</h1>
<br>
<a href="http://127.0.0.1:8000/logout">退出</a>
</body>
</html>