• Django学习笔记


    1.安装:

    (1)从Django官网下载安装包( Django-1.8.tar.gz当前最新):https://www.djangoproject.com/download/

    (2)解压:tar -zxvf  Django-1.8.tar.gz 

    (3)进入解压后目录后进行安装:cd  Django-1.8 && sudo python setup.py install

    (4)验证django是否安装成功:进入python,然后import django,看是否报错,不报错即安装成功  

    相关链接:http://daikeren.gitbooks.io/python-web-workshop/content/django_app/README.html

    http://www.cnblogs.com/zhoujie/archive/2013/05/11/django1.html

    http://djangobook.py3k.cn/2.0/chapter02/

    2.初始工作:

    (1)启动项目:django-admin.py startproject project-name

    (2)编辑settings.py文件:修改时区,语言,数据库配置,installed_apps等

    INSTALLED_APPS = (
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    'blog',     #新增
    )

    DATABASES = {
    'default': {
    #'ENGINE': 'django.db.backends.sqlite3',
    'ENGINE': 'django.db.backends.mysql',
    #'NAME': os.path.join(BASE_DIR, 'db.sqlite3'),
    'NAME': 'xxx',   #数据库名
    'USER': 'xxxx',       #数据库用户
    'PASSWORD': 'xxxx',   #数据库密码
    'HOST': 'xxxx',      #数据库机器
    'PORT': '3306',           #数据库端口

    }
    }

    LANGUAGE_CODE = 'zh-cn'

    TIME_ZONE = 'Asia/Shanghai'

    (3)编辑urls.py:增加路由信息

    urlpatterns = patterns('',
    # Examples:
    # url(r'^$', 'first.views.home', name='home'),
    # url(r'^blog/', include('blog.urls')),

    url(r'^admin/', include(admin.site.urls)),
    url(r'^blog/index/$', 'blog.views.index'),    #路径,视图处理函数
    url(r'^blog/index1/$', 'blog.views.index1'),
    #url(r'^blog/index/(d{2})/$', 'blog.views.index'),
    )

    (4)启动app:cd project-name && django-admin.py startapp app-name #app-name与settings.py中配置的要一致

    (5)编辑views.py:编写视图处理方法(简单例子)

    from django.shortcuts import render
    from django.http import HttpResponse
    from django.template import loader,Context,Template
    from django.shortcuts import render_to_response
    from blog.models import Employee
    # Create your views here.
    '''
    def index(req):
    t = loader.get_template('index.html')
    c = Context({})
    return HttpResponse(t.render(c))
    #return HttpResponse('<h1>hello welcome django</h1>')
    '''
    class person(object):
    def __init__(self,name,age,sex):
    self.name=name
    self.age=age
    self.sex=sex
    def say(self):
    return "i'm "+self.name

    def index(req):
    t=loader.get_template('index.html')
    c=Context({'name':'alen'})
    res=t.render(c)
    #emps=Employee.objects.all()
    return HttpResponse(res)
    def index1(req):
    t=Template('<h1>hello {{name}} </h1>')
    c=Context({'name':'alen'})
    res=t.render(c)
    return HttpResponse(res)

    cat templates/index.html

    <body>
    <h1>hello {{name}}!</h1>
    </body>

    cat models.py

    from django.db import models

    # Create your models here.

    class Employee(models.Model):
    name = models.CharField(max_length=20)
    def __unicode__(self):
    return self.name

    (6)启动server:python manage.py runserver ip:port,如果没有报错,在浏览器上就可以看到结果了

    3.相关库:

    (1)Cryptographic signing(cookie,session加解密)

       简单使用实例

    from django.core.signing import Signer #for cookie
    
    signer = Signer(salt='extra')
    sec_cookie = signer.sign('username')
    unsec_cookie = signer.unsign(sec_cookie)

    Django 1.10中文文档-聚合

    Django---信号

    Django-分頁組件

    Django——模板层(template)(模板语法、自定义模板过滤器及标签、模板继承

    Django--ORM基础(关联关系,分组查询,聚合查询等)

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  • 原文地址:https://www.cnblogs.com/276815076/p/4399202.html
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