Django路由系统

1、单一路由对应

1 url(r'^index$', views.index),

2、基于正则的路由

1 url(r'^index/(d*)', views.index),
2 url(r'^manage/(?P<name>w*)/(?P<id>d*)', views.manage),

3、添加额外的参数,默认的参数

1 url(r'^manage/(?P<name>w*)', views.manage,{'id':333}),

4、为路由映射设置名称

1 url(r'^home', views.home, name='h1'),
2 url(r'^index/(d*)', views.index, name='h2'),

5、根据app对路由规则进行分类

1 url(r'^web/',include('web.urls')),

动态url：

 1 urlpatterns = [
 2     url(r'^admin/', admin.site.urls),
 3 
 4     #url----function
 5     '''
 6     url(r'^index/',index ),
 7     url(r'^Login/',login ),
 8     #配置动态的URL，因为此时不确定我会产生多少条url，此时在函数中需要加上一个捕获的参数，id，用来捕获用户的id
 9     #尖括号里面的值需要与业务逻辑层次上对应，模板格式
10     url(r'^list/(?P<name>d*)/(?P<id>d*)/',list ),
11     #设置默认值
12     url(r'^list/(?P<name>d*)/',list ,{'id':222}),
13     '''
14 
15 
16 ]

分类的url:

 1 urlpatterns = [
 2     url(r'^admin/', admin.site.urls),
 3 
 4    
 5 
 6 
 7     #url----file
 8     #file-----url>function 类似于路径映射，本来是单纯的由jango里面的urls（全局的url）统一的配置路由信息，但是如果我的app多了之后这就会显得有点乱，所以此时可以指定URL路径，由各自的APP去执行url,每个路径多加了一个分类的路径
 9     url(r'^ad/', include('ad.urls')),
10     url(r'^web/',include('web.urls')),
11 
12 ]

6、通过反射机制，为django开发一套动态的路由系统

在urls.py里定义分类正则表达式

 1 from django.conf.urls import patterns, include, url
 2 from django.contrib import admin
 3 from DynamicRouter.activator import process
 4 
 5 urlpatterns = patterns('',
 6     # Examples:
 7     # url(r'^$', 'DynamicRouter.views.home', name='home'),
 8     # url(r'^blog/', include('blog.urls')),
 9 
10     url(r'^admin/', include(admin.site.urls)),
11     
12     
13     ('^(?P<app>(w+))/(?P<function>(w+))/(?P<page>(d+))/(?P<id>(d+))/$',process),
14     ('^(?P<app>(w+))/(?P<function>(w+))/(?P<id>(d+))/$',process),
15     ('^(?P<app>(w+))/(?P<function>(w+))/$',process),
16     ('^(?P<app>(w+))/$',process,{'function':'index'}),
17 )

在同目录下创建activater.py

 1 #!/usr/bin/env python
 2 #coding:utf-8
 3 
 4 from django.shortcuts import render_to_response,HttpResponse,redirect
 5 
 6 
 7 def process(request,**kwargs):
 8     '''接收所有匹配url的请求，根据请求url中的参数，通过反射动态指定view中的方法'''
 9     
10     app =  kwargs.get('app',None)
11     function = kwargs.get('function',None)
12     
13     try:
14         appObj = __import__("%s.views" %app)
15         viewObj = getattr(appObj, 'views')
16         funcObj = getattr(viewObj, function)
17         
18         #执行view.py中的函数，并获取其返回值
19         result = funcObj(request,kwargs)
20         
21     except (ImportError,AttributeError),e:
22         #导入失败时，自定义404错误
23         return HttpResponse('404 Not Found')
24     except Exception,e:
25         #代码执行异常时，自动跳转到指定页面
26         return redirect('/app01/index/')
27     
28     return result