django的使用
1.新建project
django-admin.py startproject frist python manage.py runserver 0.0.0.0:8000
2.实现C与V的交互
(1)vim urls.py from views import fristfunc url(r'^frist/', fristfunc), (2)vim views.py from django.http import HttpResponse def fristfunc(requst):
returnHttpResponse('iamagirl')
3.在views中引入模板template
(1)在与manage.py同级mkdirfristtem
(2)fristtem->1.html
(3)vim 1.html <html> <head> </head> <body> <h1>{{canshu}}</h1> </body> </html>
(4)vimsetting.py
添加TEMPLATE_DIRS=('/home/..../',)注释:引号内为1.html的路径.实现M与数据库的交互
4.新建app
python manage.py startapp fristapp vim models.py(定义表的字段) from django.db import models # Create your models here. class Publisher(models.Model): name=models.CharField(max_length=30) xingbie=models.CharField(max_length=30) def __unicode__(self): return self.name
更改配置文件:setting.py DATABASES = { 'default': { 'ENGINE': 'django.db.backends.mysql', 'NAME': 'books', #你的数据库名称 'USER': 'root', #你的数据库用户名 'PASSWORD': '', #你的数据库密码 'HOST': '', #你的数据库主机,留空默认为localhost 'PORT': '3306', #你的数据库端口 } }
注:要在数据库里建相应的book数据库
python manage.py validate //验证table是否有格式错误 python manage.py makemigrations myapp python manage.py migrate/syncdb//(同步数据库,centos7用migrate)
5.在命令行往数据库里加入数据
python manage.py shell from fristmysql.models import Publisher p1=Publisher(name="",xingbie="") p1.save() publisher_list=Publisher.objects.all() publisher_list
6.Django站点管理
vim admin.py from django.contrib import admin admin.autodiscover() (r'^admin/', admin.site.urls),
建djano_site表,同步数据库
# Register your models here. from django.contrib import admin from fristapp.models import Publisher admin.site.register(Publisher)
注:python对象转化为字典views.py加入下行
json.dumps(mm, default = lambda o: o.__dict__) mm为Python对象 或者: def toJSON(self): return json.dumps(dict([(attr, getattr(self, attr)) for attr in [f.name for f in self._meta.fields]])) row=models.ChatUsers.objects.get(name='Carlos Flowers') def fristfunc(requst): return HttpResponse(toJSON(row))