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Django：Django的路由系统

发布时间：2020-12-15 17:16:25 所属栏目：大数据 来源：网络整理
导读：一，URLconf配置 1，基本格式 django.conf.urls urlpatterns =span style="color: #000000" [ url(正则表达式,views视图函数，参数，别名),] 2,参数说明 二，正则表达式详解 1，基本配置 django.conf.urls span style="color: #0000ff"from . span style="co

一，URLconf配置

1，基本格式

django.conf.urls urlpatterns =<span style="color: #000000"> [
url(正则表达式,views视图函数，参数，别名),]

2,参数说明

二，正则表达式详解

1，基本配置

django.conf.urls <span style="color: #0000ff">from . <span style="color: #0000ff">import<span style="color: #000000"> views

urlpatterns =<span style="color: #000000"> [
url(r<span style="color: #800000">'<span style="color: #800000">^articles/2003/$<span style="color: #800000">'<span style="color: #000000">,views.special_case_2003),url(r<span style="color: #800000">'<span style="color: #800000">^articles/([0-9]{4})/$<span style="color: #800000">'<span style="color: #000000">,views.year_archive),url(r<span style="color: #800000">'<span style="color: #800000">^articles/([0-9]{4})/([0-9]{2})/$<span style="color: #800000">'<span style="color: #000000">,views.month_archive),url(r<span style="color: #800000">'<span style="color: #800000">^articles/([0-9]{4})/([0-9]{2})/([0-9]+)/$<span style="color: #800000">'<span style="color: #000000">,views.article_detail),]

2，注意事项

3，补充说明

APPEND_SLASH=True

如果在settings.py中设置了?，此时我们请求 http://www.example.com/blog 时就会提示找不到页面

三，分组命名匹配

(?Ppattern)，其中name是组的名称，pattern是要匹配的模式。

django.conf.urls <span style="color: #0000ff">from . <span style="color: #0000ff">import<span style="color: #000000"> views

urlpatterns =<span style="color: #000000"> [
url(r<span style="color: #800000">'<span style="color: #800000">^articles/2003/$<span style="color: #800000">'<span style="color: #000000">,url(r<span style="color: #800000">'<span style="color: #800000">^articles/(?P[0-9]{4})/$<span style="color: #800000">'<span style="color: #000000">,url(r<span style="color: #800000">'<span style="color: #800000">^articles/(?P[0-9]{4})/(?P[0-9]{2})/$<span style="color: #800000">'<span style="color: #000000">,url(r<span style="color: #800000">'<span style="color: #800000">^articles/(?P[0-9]{4})/(?P[0-9]{2})/(?P[0-9]{2})/$<span style="color: #800000">'<span style="color: #000000">,]

4，URLconf匹配的位置

。

myapp/。

POST、GET、HEAD等等 —— 都将路由到相同的函数。

5，捕捉到的参数永远都是字符串

url(r[0-9]{4})/$,

views.year_archive()?中的year?参数永远是一个字符串类型。

6，视图中指定默认值

django.conf.urls <span style="color: #0000ff">from . <span style="color: #0000ff">import<span style="color: #000000"> views

urlpatterns =<span style="color: #000000"> [
url(r<span style="color: #800000">'<span style="color: #800000">^blog/$<span style="color: #800000">'<span style="color: #000000">,views.page),url(r<span style="color: #800000">'<span style="color: #800000">^blog/page(?P[0-9]+)/$<span style="color: #800000">'<span style="color: #000000">,]

<span style="color: #008000">#<span style="color: #008000"> views.py中，可以为num指定默认值
<span style="color: #0000ff">def page(request,num=<span style="color: #800000">"<span style="color: #800000">1<span style="color: #800000">"<span style="color: #000000">):
<span style="color: #0000ff">pass

7，include其他的URLconfs

<span style="color: #008000">#<span style="color: #008000">For example,here’s an excerpt of the URLconf for the Django website itself.<span style="color: #008000">

<span style="color: #008000">It includes a number of other URLconfs:

<span style="color: #0000ff">from django.conf.urls <span style="color: #0000ff">import<span style="color: #000000"> include,url

urlpatterns =<span style="color: #000000"> [
url(r<span style="color: #800000">'<span style="color: #800000">^admin/<span style="color: #800000">'<span style="color: #000000">,admin.site.urls),url(r<span style="color: #800000">'<span style="color: #800000">^blog/<span style="color: #800000">',include(<span style="color: #800000">'<span style="color: #800000">blog.urls<span style="color: #800000">')),<span style="color: #008000">#<span style="color: #008000"> 可以包含其他的URLconfs文件
]

四，命名URL和URL的反向解析

url(r,views.home,name=), url(r,views.index,name=),

{% url 'home' %}

django.urls reverse(<span style="margin: 0px; padding: 0px; color: #800000; line-height: 1.5 !important">"<span style="margin: 0px; padding: 0px; color: #800000; line-height: 1.5 !important">index<span style="margin: 0px; padding: 0px; color: #800000; line-height: 1.5 !important">",args=(<span style="margin: 0px; padding: 0px; color: #800000; line-height: 1.5 !important">"<span style="margin: 0px; padding: 0px; color: #800000; line-height: 1.5 !important">2018<span style="margin: 0px; padding: 0px; color: #800000; line-height: 1.5 !important">",))

 django.conf.urls <span style="margin: 0px; padding: 0px; color: #0000ff; line-height: 1.5 !important">from . <span style="margin: 0px; padding: 0px; color: #0000ff; line-height: 1.5 !important">import<span style="margin: 0px; padding: 0px; line-height: 1.5 !important"> views


urlpatterns =<span style="margin: 0px; padding: 0px; line-height: 1.5 !important"> [

<span style="margin: 0px; padding: 0px; color: #008000; line-height: 1.5 !important">#<span style="margin: 0px; padding: 0px; color: #008000; line-height: 1.5 !important"> ...

url(r<span style="margin: 0px; padding: 0px; color: #800000; line-height: 1.5 !important">'<span style="margin: 0px; padding: 0px; color: #800000; line-height: 1.5 !important">^articles/([0-9]{4})/$<span style="margin: 0px; padding: 0px; color: #800000; line-height: 1.5 !important">',views.year_archive,name=<span style="margin: 0px; padding: 0px; color: #800000; line-height: 1.5 !important">'<span style="margin: 0px; padding: 0px; color: #800000; line-height: 1.5 !important">news-year-archive<span style="margin: 0px; padding: 0px; color: #800000; line-height: 1.5 !important">'<span style="margin: 0px; padding: 0px; line-height: 1.5 !important">),<span style="margin: 0px; padding: 0px; color: #008000; line-height: 1.5 !important">#<span style="margin: 0px; padding: 0px; color: #008000; line-height: 1.5 !important"> ...

]

<div class="cnblogs_code_toolbar" style="margin: 5px 0px 0px; padding: 0px"><span class="cnblogs_code_copy" style="margin: 0px; padding: 0px 5px 0px 0px; line-height: 1.5 !important"><a style="margin: 0px; padding: 0px; outline: none; border: none !important" title="复制代码">

<img style="margin: 0px; padding: 0px; height: auto; max-width: 700px; border-width: initial !important; border-style: none !important" src="https://www.52php.cn/res/2019/02-25/18/51e409b11aa51c150090697429a953ed.gif" alt="复制代码">

/articles/nnnn/。

2012 Archive

<span style="margin: 0px; padding: 0px; color: #0000ff; line-height: 1.5 !important"><<span style="margin: 0px; padding: 0px; color: #800000; line-height: 1.5 !important">ul<span style="margin: 0px; padding: 0px; color: #0000ff; line-height: 1.5 !important">><span style="margin: 0px; padding: 0px; line-height: 1.5 !important">

{% for yearvar in year_list %}

<span style="margin: 0px; padding: 0px; color: #0000ff; line-height: 1.5 !important"><<span style="margin: 0px; padding: 0px; color: #800000; line-height: 1.5 !important">li<span style="margin: 0px; padding: 0px; color: #0000ff; line-height: 1.5 !important">><<span style="margin: 0px; padding: 0px; color: #800000; line-height: 1.5 !important">a <span style="margin: 0px; padding: 0px; color: #ff0000; line-height: 1.5 !important">href<span style="margin: 0px; padding: 0px; color: #0000ff; line-height: 1.5 !important">="{% url 'news-year-archive' yearvar %}"<span style="margin: 0px; padding: 0px; color: #0000ff; line-height: 1.5 !important">>{{ yearvar }} Archive<span style="margin: 0px; padding: 0px; color: #0000ff; line-height: 1.5 !important"></<span style="margin: 0px; padding: 0px; color: #800000; line-height: 1.5 !important">a<span style="margin: 0px; padding: 0px; color: #0000ff; line-height: 1.5 !important">></<span style="margin: 0px; padding: 0px; color: #800000; line-height: 1.5 !important">li<span style="margin: 0px; padding: 0px; color: #0000ff; line-height: 1.5 !important">><span style="margin: 0px; padding: 0px; line-height: 1.5 !important">

{% endfor %}

<span style="margin: 0px; padding: 0px; color: #0000ff; line-height: 1.5 !important"></<span style="margin: 0px; padding: 0px; color: #800000; line-height: 1.5 !important">ul<span style="margin: 0px; padding: 0px; color: #0000ff; line-height: 1.5 !important">>

<div class="cnblogs_code_toolbar" style="margin: 5px 0px 0px; padding: 0px"><span class="cnblogs_code_copy" style="margin: 0px; padding: 0px 5px 0px 0px; line-height: 1.5 !important"><a style="margin: 0px; padding: 0px; outline: none; border: none !important" title="复制代码">

<img style="margin: 0px; padding: 0px; height: auto; max-width: 700px; border-width: initial !important; border-style: none !important" src="https://www.52php.cn/res/2019/02-25/18/51e409b11aa51c150090697429a953ed.gif" alt="复制代码">

 django.urls  django.shortcuts <span style="margin: 0px; padding: 0px; color: #0000ff; line-height: 1.5 !important">def<span style="margin: 0px; padding: 0px; line-height: 1.5 !important"> redirect_to_year(request):

<span style="margin: 0px; padding: 0px; color: #008000; line-height: 1.5 !important">#<span style="margin: 0px; padding: 0px; color: #008000; line-height: 1.5 !important"> ...

year = 2006

<span style="margin: 0px; padding: 0px; color: #008000; line-height: 1.5 !important">#<span style="margin: 0px; padding: 0px; color: #008000; line-height: 1.5 !important"> ...

<span style="margin: 0px; padding: 0px; color: #0000ff; line-height: 1.5 !important">return redirect(reverse(<span style="margin: 0px; padding: 0px; color: #800000; line-height: 1.5 !important">'<span style="margin: 0px; padding: 0px; color: #800000; line-height: 1.5 !important">news-year-archive<span style="margin: 0px; padding: 0px; color: #800000; line-height: 1.5 !important">',args=(year,)))

<div class="cnblogs_code_toolbar" style="margin: 5px 0px 0px; padding: 0px"><span class="cnblogs_code_copy" style="margin: 0px; padding: 0px 5px 0px 0px; line-height: 1.5 !important"><a style="margin: 0px; padding: 0px; outline: none; border: none !important" title="复制代码">

<img style="margin: 0px; padding: 0px; height: auto; max-width: 700px; border-width: initial !important; border-style: none !important" src="https://www.52php.cn/res/2019/02-25/18/51e409b11aa51c150090697429a953ed.gif" alt="复制代码">

comment，而另外一个应用中也有一个同样的名称，当你在模板中使用这个名称的时候不能保证将插入哪个URL。

myapp-comment?而不是comment。

五，命名空间模式

即使不同的APP使用相同的URL名称，URL的命名空间模式也可以让你唯一反转命名的URL。

django.conf.urls urlpatterns =<span style="margin: 0px; padding: 0px; line-height: 1.5 !important"> [
url(r<span style="margin: 0px; padding: 0px; color: #800000; line-height: 1.5 !important">'<span style="margin: 0px; padding: 0px; color: #800000; line-height: 1.5 !important">^app01/<span style="margin: 0px; padding: 0px; color: #800000; line-height: 1.5 !important">',include(<span style="margin: 0px; padding: 0px; color: #800000; line-height: 1.5 !important">'<span style="margin: 0px; padding: 0px; color: #800000; line-height: 1.5 !important">app01.urls<span style="margin: 0px; padding: 0px; color: #800000; line-height: 1.5 !important">',namespace=<span style="margin: 0px; padding: 0px; color: #800000; line-height: 1.5 !important">'<span style="margin: 0px; padding: 0px; color: #800000; line-height: 1.5 !important">app01<span style="margin: 0px; padding: 0px; color: #800000; line-height: 1.5 !important">'<span style="margin: 0px; padding: 0px; line-height: 1.5 !important">)),url(r<span style="margin: 0px; padding: 0px; color: #800000; line-height: 1.5 !important">'<span style="margin: 0px; padding: 0px; color: #800000; line-height: 1.5 !important">^app02/<span style="margin: 0px; padding: 0px; color: #800000; line-height: 1.5 !important">',include(<span style="margin: 0px; padding: 0px; color: #800000; line-height: 1.5 !important">'<span style="margin: 0px; padding: 0px; color: #800000; line-height: 1.5 !important">app02.urls<span style="margin: 0px; padding: 0px; color: #800000; line-height: 1.5 !important">',namespace=<span style="margin: 0px; padding: 0px; color: #800000; line-height: 1.5 !important">'app02<span style="margin: 0px; padding: 0px; color: #800000; line-height: 1.5 !important">'<span style="margin: 0px; padding: 0px; line-height: 1.5 !important">)),]

 django.conf.urls  app01 app_name = <span style="margin: 0px; padding: 0px; color: #800000; line-height: 1.5 !important">'<span style="margin: 0px; padding: 0px; color: #800000; line-height: 1.5 !important">app01<span style="margin: 0px; padding: 0px; color: #800000; line-height: 1.5 !important">'<span style="margin: 0px; padding: 0px; line-height: 1.5 !important">

urlpatterns =<span style="margin: 0px; padding: 0px; line-height: 1.5 !important"> [

url(r<span style="margin: 0px; padding: 0px; color: #800000; line-height: 1.5 !important">'<span style="margin: 0px; padding: 0px; color: #800000; line-height: 1.5 !important">^(?Pd+)/$<span style="margin: 0px; padding: 0px; color: #800000; line-height: 1.5 !important">',views.detail,name=<span style="margin: 0px; padding: 0px; color: #800000; line-height: 1.5 !important">'<span style="margin: 0px; padding: 0px; color: #800000; line-height: 1.5 !important">detail<span style="margin: 0px; padding: 0px; color: #800000; line-height: 1.5 !important">'<span style="margin: 0px; padding: 0px; line-height: 1.5 !important">)

]

<div class="cnblogs_code_toolbar" style="margin: 5px 0px 0px; padding: 0px"><span class="cnblogs_code_copy" style="margin: 0px; padding: 0px 5px 0px 0px; line-height: 1.5 !important"><a style="margin: 0px; padding: 0px; outline: none; border: none !important" title="复制代码">

<img style="margin: 0px; padding: 0px; height: auto; max-width: 700px; border-width: initial !important; border-style: none !important" src="https://www.52php.cn/res/2019/02-25/18/51e409b11aa51c150090697429a953ed.gif" alt="复制代码">

 django.conf.urls  app02 app_name = <span style="margin: 0px; padding: 0px; color: #800000; line-height: 1.5 !important">'<span style="margin: 0px; padding: 0px; color: #800000; line-height: 1.5 !important">app02<span style="margin: 0px; padding: 0px; color: #800000; line-height: 1.5 !important">'<span style="margin: 0px; padding: 0px; line-height: 1.5 !important">

urlpatterns =<span style="margin: 0px; padding: 0px; line-height: 1.5 !important"> [

url(r<span style="margin: 0px; padding: 0px; color: #800000; line-height: 1.5 !important">'<span style="margin: 0px; padding: 0px; color: #800000; line-height: 1.5 !important">^(?Pd+)/$<span style="margin: 0px; padding: 0px; color: #800000; line-height: 1.5 !important">',name=<span style="margin: 0px; padding: 0px; color: #800000; line-height: 1.5 !important">'<span style="margin: 0px; padding: 0px; color: #800000; line-height: 1.5 !important">detail<span style="margin: 0px; padding: 0px; color: #800000; line-height: 1.5 !important">'<span style="margin: 0px; padding: 0px; line-height: 1.5 !important">)

]

<div class="cnblogs_code_toolbar" style="margin: 5px 0px 0px; padding: 0px"><span class="cnblogs_code_copy" style="margin: 0px; padding: 0px 5px 0px 0px; line-height: 1.5 !important"><a style="margin: 0px; padding: 0px; outline: none; border: none !important" title="复制代码">

<img style="margin: 0px; padding: 0px; height: auto; max-width: 700px; border-width: initial !important; border-style: none !important" src="https://www.52php.cn/res/2019/02-25/18/51e409b11aa51c150090697429a953ed.gif" alt="复制代码">

{% url 'app01:detail' pk=12 pp=99 %}

v = reverse(,kwargs={:11}) 

 django.conf.urls urlpatterns =<span style="margin: 0px; padding: 0px; line-height: 1.5 !important"> [

url(正则表达式,]

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