對(duì)Django url的幾種使用方式詳解
利用Django開發(fā)網(wǎng)站,可以設(shè)計(jì)出非常優(yōu)美的url規(guī)則,如果url的匹配規(guī)則(包含正則表達(dá)式)組織得比較好,view的結(jié)構(gòu)就會(huì)比較清晰,比較容易維護(hù)。
最簡單的形式
<code> from django.conf.urls import patterns, url urlpatterns = patterns('', url(r'^articles/2003/$', 'news.views.special_case_2003'), url(r'^articles/(\d{4})/$', 'news.views.year_archive'), url(r'^articles/(\d{4})/(\d{2})/$', 'news.views.month_archive'), url(r'^articles/(\d{4})/(\d{2})/(\d+)/$', 'news.views.article_detail'), )</code>
其中,正則表達(dá)式中組匹配出來的結(jié)果可以作為positional parameters傳遞給view.
如果url是www.yourdomain/articles/2005/,則會(huì)匹配第二條規(guī)則,執(zhí)行news.views.year_archive('2005').
注意點(diǎn)
域名部分會(huì)被過濾掉
articles的前面不需要添加/,因?yàn)榍靶騯rl的末尾一定會(huì)有/
任何組匹配的變量,都會(huì)議字符串的形式傳遞給view, 雖然通過(\d{4})匹配出了2005,但2005任然會(huì)被當(dāng)做字符串傳遞給year_archive
利用named group來傳遞參數(shù)
可以通過以下形式為特定的組指定一個(gè)名稱.
urlpatterns = patterns('', url(r'^articles/2003/$', 'news.views.special_case_2003'), url(r'^articles/(?P<year>\d{4})/$', 'news.views.year_archive'), url(r'^articles/(?P<year>\d{4})/(?P<month>\d{2})/$', 'news.views.month_archive'), url(r'^articles/(?P<year>\d{4})/(?P<month>\d{2})/(?P<day>\d{2})/$', 'news.views.article_detail'), )
這樣的話,組的匹配結(jié)果會(huì)通過keyword parameters的形式傳遞給view.例如year_archive(year='2005')
利用named group可以為view指定一個(gè)默認(rèn)參數(shù)來匹配多條規(guī)則。
# URLconf from django.conf.urls import patterns, url urlpatterns = patterns('', url(r'^blog/$', 'blog.views.page'), url(r'^blog/page(?P<num>\d+)/$', 'blog.views.page'), ) # View (in blog/views.py) def page(request, num="1"): # Output the appropriate page of blog entries, according to num.
指定view前綴(提取公因式)
patterns函數(shù)的第一個(gè)參數(shù)即是view的前綴
from django.conf.urls import patterns, url urlpatterns = patterns('news.views', url(r'^articles/(\d{4})/$', 'year_archive'), url(r'^articles/(\d{4})/(\d{2})/$', 'month_archive'), url(r'^articles/(\d{4})/(\d{2})/(\d+)/$', 'article_detail'), )
指定多個(gè)view前綴
urlpatterns = patterns('myapp.views', url(r'^$', 'app_index'), url(r'^(?P<year>\d{4})/(?P<month>[a-z]{3})/$','month_display'), ) urlpatterns += patterns('weblog.views', url(r'^tag/(?P<tag>\w+)/$', 'tag'), )
include其它匹配模塊
from django.conf.urls import include, patterns, url urlpatterns = patterns('', # ... snip ... url(r'^comments/', include('django.contrib.comments.urls')), url(r'^community/', include('django_website.aggregator.urls')), url(r'^contact/', include('django_website.contact.urls')), # ... snip ... )
當(dāng)然也可以直接include其它patterns
from django.conf.urls import include, patterns, url extra_patterns = patterns('', url(r'^reports/(?P<id>\d+)/$', 'credit.views.report'), url(r'^charge/$', 'credit.views.charge'), ) urlpatterns = patterns('', url(r'^$', 'apps.main.views.homepage'), url(r'^help/', include('apps.help.urls')), url(r'^credit/', include(extra_patterns)), )
為view函數(shù)傳遞額外參數(shù)
from django.conf.urls import patterns, url urlpatterns = patterns('blog.views', url(r'^blog/(?P<year>\d{4})/$', 'year_archive', {'foo': 'bar'}), )
直接使用view函數(shù)
from django.conf.urls import patterns, url from mysite.views import archive, about, contact urlpatterns = patterns('', url(r'^archive/$', archive), url(r'^about/$', about), url(r'^contact/$', contact), )
以上這篇對(duì)Django url的幾種使用方式詳解就是小編分享給大家的全部內(nèi)容了,希望能給大家一個(gè)參考,也希望大家多多支持腳本之家。
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