Django的URL写法

一、Django基于正则表达式的URL

# url(r'^detail-(d+)-(d+).html', views.detail),  #这和下面的区别是，这两个数可能会变，按照先后顺序获取
# url(r'^detail-(?P<nid>d+)-(?P<uid>d+).html', views.detail),    #写死了nid 和uid,接收的参数也要对应着，根据ID一一对应获取（尽量用这种）

def detail(request，nid,uid):　　
　　pass

多个参数时，可以使用这种方式接收参数：def detail(request, *args,**kwargs):

urls.py

 url(r'^detail/', views.detail),   #改前

 url(r'^detail-(d+).html', views.detail), #改后，路由url写得好看一点

views.py

 def detail(request):  #改url.py前的操作
     nid = request.GET.get('nid')
     detail_info = USER_DICT[nid]
     return render(request, 'detail.html',{'detail_info':detail_info})



def detail(request,nid):   #改url.py后的操作    url传了+d参数，所以这边也要接收一下
    detail_info = USER_DICT[nid]
    return render(request, 'detail.html',{'detail_info':detail_info})

detail.html

        {% for k,row in user_dict.items %}   {#  改url.py前获取的路由?   ,看起来以为是动态的 #}
            <li><a target="_blank" href="/detail/?nid={{ k }}">{{ row.name }}</a></li>#}
        {% endfor %}




    {% for k,row in user_dict.items %}    {#  改url.py后获取的路由-#}
        <li><a target="_blank" href="/detail-{{ k }}.html">{{ row.name }}</a></li>
    {% endfor %}

二、对URL路由关系进行命名， ***** 以后可以根据此名称生成自己想要的URL *****

urls.py

url(r'^asdfasdfasdf/', views.index, name='i1'),
url(r'^yug/(d+)/(d+)/', views.index, name='i2'),
url(r'^buy/(?P<pid>d+)/(?P<nid>d+)/', views.index, name='i3'),

views.py

from django.urls import reverse

def func(request, *args, **kwargs):

　　url1 = reverse('i1') # asdfasdfasdf/
　　url2 = reverse('i2', args=(1,2,)) # yug/1/2/
　　url3 = reverse('i3', kwargs={'pid': 1, "nid": 9}) # buy/1/9/

xxx.html

{% url "i1" %} # asdfasdfasdf/
{% url "i2" 1 2 %} # yug/1/2/
{% url "i3" pid=1 nid=9 %} # buy/1/9/

{#因为urls.py文件中，路由多添加了name='indexx',所以可以通过这种方式来读取路由跳转，防止路由连接改名字也不受影响#}

<form action="{% url 'indexx' 2 %}" method="post">   {# 如果带有参数，这种跳转方式也不是很好，因为不是动态跳转，一直强制在2页面#}
<form action="{% url 'indexx' nid=1 uid=3 %}" method="post">   {# 如果带有参数，这种跳转方式也不是很好，因为不是动态跳转，一直强制在1/3页面#}

    <p><input type="text" name="user" placeholder="用户名："></p>
    <p><input type="text" name="email" placeholder="邮箱："></p>
        <input type="submit" value="提交">#}

<form action="{{ request.path_info }}" method="post">  {#动态生成url,没上面方式这么死板#}

注：
# 当前的URL
request.path_info

三、多级路由分发，include()

project/urls.py

from django.conf.urls import url,include
from django.contrib import admin

urlpatterns = [
　　url(r'^cmdb/', include("app01.urls")),
　　url(r'^monitor/', include("app02.urls")),
]

app01/urls.py

from django.conf.urls import url,include
from django.contrib import admin
from app01 import views

urlpatterns = [
　　url(r'^login/', views.login),
]

app02/urls.py

from django.conf.urls import url,include
from django.contrib import admin
from app02 import views

urlpatterns = [
url(r'^login/', views.login),
]

写在最后：

    url(r'^business/$',views.business),   #最好加上终止符$，否则如：url(r'^business_add/',views.business)不会识别到