Django+mysql User Login system, encounter problems and solve

Add to:

Programmingerror: (1146, "Table ' test.app_name_testmodel ' doesn ' t exist") Resolved: 

1. 创建更改的文件python manage.py makemigrations

2. 将生成的py文件应用到数据库  python manage.py migrateDjango __init__ () takes exactly 1 argument (2 given) has two parameter values tuned to onenot resolved

Django Common commands:

1. Create a new Django project:django-admin.py startproject project_name

2. Create a new app:python manage.py startapp app_name

3. Create a database table or change a database table or field :python manage.py makemigrations

python manage.py migrate

4. Use the development server :python manage.py runserver 0.0.0.0:8000

5. 清空数据库：python manage.py flush6. Create a Super Administrator: python manage.py createsuperuserTo modify a user password: python manage.py changepassword username7. Export Data import data: python manage.py dumpdata appname > appname.json python manage.py loaddata appname.json8. Django Project Environment Terminal： python manage.py shell

Create a new Django project

or also: django-admin.py startproject mysqllogin

新建APP:python manage.py startapp app01

app01>models.py

 #  -*-coding:utf-8-*- from  __future__  import   unicode_literals  from  django.db Span style= "COLOR: #0000ff" >import   models   #   Create your models here.  class   User (models. Model): Username  =models. Charfield (Max_length=32 =models. Charfield (Max_length=32)  def  __unicode__    return  Self.username 

app01>views.py

#Coding=utf-8 fromDjango.shortcutsImportRender,render_to_response fromDjango.httpImportHttpresponse,httpresponseredirect fromDjango.templateImportRequestContext fromDjangoImportForms fromModelsImportUser#formclassUserForm (forms. Form): Username= Forms. Charfield (label='User name', max_length=100) Password= Forms. Charfield (label='Password', widget=forms. Passwordinput ())#Registerdefregist (req):ifReq.method = ='POST': UF=UserForm (req. POST)ifuf.is_valid ():#Get form dataUsername = uf.cleaned_data['username'] Password= uf.cleaned_data['Password']            #Add to DatabaseUser.objects.create (Username= username,password=password)returnHttpResponse ('regist success!!')    Else: UF=UserForm ()returnRender_to_response ('regist.html',{'uf': uf})#LogindefLogin (req):ifReq.method = ='POST': UF=UserForm (req. POST)ifuf.is_valid ():#get form User passwordUsername = uf.cleaned_data['username'] Password= uf.cleaned_data['Password']            #get the form data to compare to the databaseuser = User.objects.filter (username__exact = Username,password__exact =password)ifUser:#more successful, jump indexResponse = Httpresponseredirect ('index.html')                #writes username to the browser cookie with an expiration time of 3600Response.set_cookie ('username', username,3600)                returnResponseElse:                #failed to compare, still in login                returnHttpresponseredirect ('login.html')    Else: UF=UserForm ()returnRender_to_response ('login.html',{'uf': uf})#Landing SuccessdefIndex (req): Username= req. Cookies.get ('username',"')    returnRender_to_response ('index.html',{'username': username})#ExitdefLogout (req): Response= HttpResponse ('Logout !')    #save username in cookie cleanupResponse.delete_cookie ('username')    returnResponse

mysqllogin>setting.py

 fromDjango.conf.urlsImportURL fromDjango.contribImportAdmin fromApp01ImportViewsurlpatterns= [    #URL (r ' ^admin/', admin.site.urls),URL (r'^index/', views.index), url (r'^login/', views.login), url (r'^regist/', views.regist), url (r'^logout/', views.logout), url (r'^$', Views.login),]

Templates>index.html

<?xml version= "1.0" encoding= "UTF-8"? ><! DOCTYPE HTML PUBLIC "-//W3C//DTD XHTML 1.0 strict//en" "Http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd" >< HTML xmlns= "http://www.w3.org/1999/xhtml" xml:lang= "en" lang= "en" >
Templates>login.html
<?xml version= "1.0" encoding= "UTF-8"? ><! DOCTYPE HTML PUBLIC "-//W3C//DTD XHTML 1.0 strict//en" "Http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd" >< HTML xmlns= "http://www.w3.org/1999/xhtml" xml:lang= "en" lang= "en" >    {% csrf_token%  }    {{uf.as_p}}    <input type= "submit" value = "OK"/></form><br><a href= "http/ 127.0.0.1:8000/regist/"> Registration </a></body>
Templates>regist.html
<?xml version= "1.0" encoding= "UTF-8"? ><! DOCTYPE HTML PUBLIC "-//W3C//DTD XHTML 1.0 strict//en" "Http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd" >< HTML xmlns= "http://www.w3.org/1999/xhtml" xml:lang= "en" lang= "en" >    {% csrf_token%}    {{uf.as_p}}     <input type= "Submit" value = "OK"/></form><br><a href= "http://127.0.0.1:8000/login/" > Login < /a></body>
Python manage.py Shell
From App01.models import User
Query All Users: User.objects.all ()
Added User: User.objects.create (username= ' xxx ', password= ' xxx ')
Django+mysql User Login system, encounter problems and solve