django示例

这个例子运用了django以下一些方面：

1.       转向

2.       模板设置

3.       Cookie操作

 

首先访问http://127.0.0.1:8080/testCookies/

提示没有cookie，并设置cookie

再次访问，这时已有cookie，修改cookie，利用模板系统输出当前时间

第三次访问，这时cookie已经修改，转向到白云黄鹤。

代码如下：

 

urls.py

 

 

from django.conf.urls.defaults import *
from testsite.view import current_datetime, hours_ahead, testCookies

# Uncomment the next two lines to enable the admin:
# from django.contrib import admin
# admin.autodiscover()

urlpatterns = patterns('',
    # Example:
    # (r'^testsite/', include('testsite.foo.urls')),

    # Uncomment the admin/doc line below and add 'django.contrib.admindocs' 
    # to INSTALLED_APPS to enable admin documentation:
    # (r'^admin/doc/', include('django.contrib.admindocs.urls')),
	(r'^$', 'testsite.helloworld.index'),
	(r'^add/$', 'testsite.add.index'),
	(r'^testxml/$', 'testsite.testxml.index'),
	(r'^list/$', 'testsite.list.index'),
	(r'^csv/(?P<filename>\w+)/$', 'testsite.csv_test.output'),
    (r'^login/$', 'testsite.login.login'),
    (r'^logout/$', 'testsite.login.logout'),
    (r'^now/$', current_datetime),
    (r'^now/plus(\d{1,2})hours/$', hours_ahead),
    (r'^testCookies/$', testCookies),
    # Uncomment the next line to enable the admin:
    # (r'^admin/(.*)', admin.site.root),
)

 

 

 

settings.py

 

 

# Django settings for testsite project.

DEBUG = True
# DEBUG = False
TEMPLATE_DEBUG = DEBUG

ADMINS = (
    # ('Your Name', '[e-mail]'),
)

MANAGERS = ADMINS

DATABASE_ENGINE = 'mysql'           # 'postgresql_psycopg2', 'postgresql', 'mysql', 'sqlite3' or 'oracle'.
DATABASE_NAME = 'test'             # Or path to database file if using sqlite3.
DATABASE_USER = 'root'             # Not used with sqlite3.
DATABASE_PASSWORD = 'admin'         # Not used with sqlite3.
DATABASE_HOST = '192.168.0.231'             # Set to empty string for localhost. Not used with sqlite3.
DATABASE_PORT = '3306'             # Set to empty string for default. Not used with sqlite3.

# Local time zone for this installation. Choices can be found here:
# http://en.wikipedia.org/wiki/List_of_tz_zones_by_name
# although not all choices may be available on all operating systems.
# If running in a Windows environment this must be set to the same as your
# system time zone.
TIME_ZONE = 'America/Chicago'

# Language code for this installation. All choices can be found here:
# http://www.i18nguy.com/unicode/language-identifiers.html
LANGUAGE_CODE = 'en-us'

SITE_ID = 1

# If you set this to False, Django will make some optimizations so as not
# to load the internationalization machinery.
USE_I18N = True

# Absolute path to the directory that holds media.
# Example: "/home/media/media.lawrence.com/"
MEDIA_ROOT = ''

# URL that handles the media served from MEDIA_ROOT. Make sure to use a
# trailing slash if there is a path component (optional in other cases).
# Examples: "http://media.lawrence.com", "http://example.com/media/"
MEDIA_URL = ''

# URL prefix for admin media -- CSS, JavaScript and images. Make sure to use a
# trailing slash.
# Examples: "http://foo.com/media/", "/media/".
ADMIN_MEDIA_PREFIX = '/media/'

# Make this unique, and don't share it with anybody.
SECRET_KEY = '!utms++9y)scz_(1fuwfi&e2z#%c=f(2ltg$b^zdo()mly)&6c'

# List of callables that know how to import templates from various sources.
TEMPLATE_LOADERS = (
    'django.template.loaders.filesystem.load_template_source',
    'django.template.loaders.app_directories.load_template_source',
#     'django.template.loaders.eggs.load_template_source',
)

MIDDLEWARE_CLASSES = (
    'django.middleware.common.CommonMiddleware',
    'django.contrib.sessions.middleware.SessionMiddleware',
    'django.contrib.auth.middleware.AuthenticationMiddleware',
)

ROOT_URLCONF = 'testsite.urls'

TEMPLATE_DIRS = (
    # Put strings here, like "/home/html/django_templates" or "C:/www/django/templates".
    # Always use forward slashes, even on Windows.
    # Don't forget to use absolute paths, not relative paths.
    
    #'./templates',
    'E:/Python25/scripts/testsite/templates',
)

INSTALLED_APPS = (
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.sites',
)

#print 'E:/Python25/scripts/testsite/templates',

 

 

 

view.py

 

 

'''
Created on 2009-4-8

@author: Administrator
'''
from django.template.loader import get_template
from django.template import Context
from django.http import HttpResponse
from django.http import HttpResponseRedirect
import datetime

def current_datetime(request):
    now = datetime.datetime.now()
    #html = "it is now %s." % now
    t = get_template('current_datetime.html')
    html = t.render(Context({'current_date': now}))
    return HttpResponse(html)

def hours_ahead(request, offset):
    offset = int(offset)
    dt = datetime.datetime.now() + datetime.timedelta(hours = offset)
    html = color + "in %s hour(s), it will be %s." % (offset, dt)
    response = HttpResponse(html)
    response.set_cookie("favorite_color","red")
    return response

def testCookies(request):
    if "favorite_color1" in request.COOKIES:
        color = request.COOKIES["favorite_color1"]
        if color == 'blue':
            return HttpResponseRedirect('http://byhh.net')
        elif color == 'red':
            now = datetime.datetime.now()
            #html = "it is now %s." % now
            t = get_template('current_datetime.html')
            html = t.render(Context({'current_date': now}))
            response = HttpResponse(html)
            response.set_cookie("favorite_color1","blue")
            return response         
    else:
        html = "no favorite_color1 in COOKIES"
        response = HttpResponse(html)
        response.set_cookie("favorite_color1","red")
        return response
    
#print hours_ahead("", 5)

 

 

 

current_datetime.html

 

<html><body>template!It is now {{ current_date }}.</body></html>

 

评论

1 楼 momotea 2009-12-02