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Django2 URL配置
函数、类的URL定义
"""mysite URL Configuration The `urlpatterns` list routes URLs to views. For more information please see: https://docs.djangoproject.com/en/1.11/topics/http/urls/ Examples: Function views 1. Add an import: from my_app import views 2. Add a URL to urlpatterns: url(r‘^$‘, views.home, name=‘home‘) Class-based views 1. Add an import: from other_app.views import Home 2. Add a URL to urlpatterns: url(r‘^$‘, Home.as_view(), name=‘home‘) Including another URLconf 1. Import the include() function: from django.conf.urls import url, include 2. Add a URL to urlpatterns: url(r‘^blog/‘, include(‘blog.urls‘)) """ from django.conf.urls import url from django.contrib import admin from app01 import views urlpatterns = [ url(r‘^admin/‘, admin.site.urls), # 视图为函数,定义URL url(r‘^index/‘, views.index), # 视图为类,定义URL url(r‘^home/‘, views.Home.as_view()), ]
路由匹配
URL有很多种类型,一个URL可以对应一个视图或者类,也可以用正则表达式的方法定义URL去匹配一类的URL
一对一的URL
from django.conf.urls import url from django.contrib import admin from app01 import views urlpatterns = [ url(r‘^admin/‘, admin.site.urls), # 视图为函数,定义URL url(r‘^index/‘, views.index), # 视图为类,定义URL url(r‘^home/‘, views.Home.as_view()), ]
一对多的URL
通过GET方法传参
http://127.0.0.1:8000/detail/?nid=1
http://127.0.0.1:8000/detail/?nid=2
http://127.0.0.1:8000/detail/?nid=3
url(r‘detail‘, views.detail),
USER_DICT = { "1": {"name": "root1", "email": "root1@live.com"}, "2": {"name": "root2", "email": "root2@live.com"}, "3": {"name": "root3", "email": "root3@live.com"}, "4": {"name": "root4", "email": "root4@live.com"}, "5": {"name": "root5", "email": "root5@live.com"}, } def index(request): return render(request, "index.html", {"user_dict": USER_DICT}) def detail(request): nid = request.GET.get("nid") detail_info = USER_DICT[nid] return render(request, "detail.html", {"detail_info": detail_info})
<ul> {% for k, row in user_dict.items %} <li><a target="_blank" href="/detail/?nid={{ k }}">{{ row.name }}</a></li> {% endfor %} </ul>
<h1>详细信息</h1> <h6>用户名:{{ detail_info.name }}</h6> <h6>邮箱:{{ detail_info.email }}</h6>
通过正则方法,动态传参,这种定义方式形参和实参的位置要一致
http://127.0.0.1:8000/detail-1.html
http://127.0.0.1:8000/detail-2.html
http://127.0.0.1:8000/detail-3.html
url(r‘^detail-(\d+).html‘, views.detail),
USER_DICT = { "1": {"name": "root1", "email": "root1@live.com"}, "2": {"name": "root2", "email": "root2@live.com"}, "3": {"name": "root3", "email": "root3@live.com"}, "4": {"name": "root4", "email": "root4@live.com"}, "5": {"name": "root5", "email": "root5@live.com"}, } def index(request): return render(request, "index.html", {"user_dict": USER_DICT}) def detail(request,nid): detail_info = USER_DICT[nid] return render(request, "detail.html", {"detail_info": detail_info})
<ul> {% for k, row in user_dict.items %} <li><a target="_blank" href="/detail-{{ k }}.html">{{ row.name }}</a></li> {% endfor %} </ul>
<h1>详细信息</h1> <h6>用户名:{{ detail_info.name }}</h6> <h6>邮箱:{{ detail_info.email }}</h6>
通过正则方法,动态传参,这种方式相当于关键字参数,形参和实参的位置可以不一致
url(r‘^detail-(?P<nid>\d+)-(?P<uid>\d+).html‘, views.detail),
多参数可以写成
def detail(request, *args, **kwargs): pass # 以第一种方式传递的参数,都会传递到*args中 url(r‘^detail-(\d+)-(\d+).html‘, views.detail), # 以第二种方式传递的参数,都会传递到**kwargs中 url(r‘^detail-(?P<nid>\d+)-(?P<uid>\d+).html‘, views.detail),
URL命名
URL路由对应的名称 name=xxx,对URL路由关系进行命名,可以根据此名称生成自己想要的URL
通过URL对应的名称,action会自动匹配URL,修改URL的时候就不用每次修改完还要再改HTML中的URL了
url(r‘^index/‘, views.index, name="index"),
<form action="{% url "index" %}" method="POST"> <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>
URL命名空间
mysite下的urls.py, namespace设置命名空间
from django.conf.urls import url from django.contrib import admin from django.conf.urls import include from app01 import views urlpatterns = [ url(r‘^admin/‘, admin.site.urls), url(r‘^a/‘, include(‘app01.urls‘, namespace="author")), url(r‘^b/‘, include(‘app01.urls‘, namespace="publisher")), ]
app01下的urls.py
from django.conf.urls import url from django.contrib import admin from app01 import views app_name = "app01" urlpatterns = [ url(r‘^index/‘, views.index, name=‘index‘), ]
views.py 在视图中使用, reverse反转时"namespace:name"
from django.shortcuts import render from django.shortcuts import HttpResponse # Create your views here. from django.urls import reverse def index(request): v = reverse("author:index") print(v) return HttpResponse("OK")
模板中使用
{% url namesapce: name%}
URL和模板的对应关系
url(r‘^test/‘, views.index, name="test"), url(r‘^test/(\d+)/(\d+)/‘, views.index, name="test"), url(r‘^test/(?P<nid>\d+)/(?P<uid>\d+)/‘, views.index, name="test"),
{% url "test" %}
{% url "test" 1 2 %} # url为/test/1/2/ 参数要按照顺序
{% url "test" uid=9 nid=4 %} # url为/test/4/9/ 参数可以不按照顺序
URL和视图的对应关系
url(r‘^test/‘, views.index, name="test"), url(r‘^test/(\d+)/(\d+)/‘, views.index, name="test"), url(r‘^test/(?P<nid>\d+)/(?P<uid>\d+)/‘, views.index, name="test"),
from django.urls import reverse def test(request, *args, **kwargs): v = reverse("index") return render(request, "test.html", {"url": v}) def test(request, *args, **kwargs): v = reverse("index", args=(1,2,)) return render(request, "test.html", {"url": v}) def test(request, *args, **kwargs): v = reverse("index", kwargs={"nid": "3", "uid": "4"}) return render(request, "test.html", {"url": v})
<form action="{{ url }}" method="POST"> <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>
URL设置默认值
from django.conf.urls import url from django.contrib import admin from app01 import views urlpatterns = [ url(r‘^admin/‘, admin.site.urls), url(r‘^index/‘, views.index, {"name": "root"}), ]
from django.shortcuts import render from django.shortcuts import HttpResponse # Create your views here. from django.urls import reverse def index(request, name): print(name) return HttpResponse("OK")
路由分发
通过工程下面的urls.py去分发路由,将不同后缀的URL分发给不同的app
from django.conf.urls import url from django.contrib import admin from django.conf.urls import include urlpatterns = [ url(r‘^cmdb/‘, include("app01.urls")), url(r‘^monitor/‘, include("app02.urls")), ]
from django.conf.urls import url from django.contrib import admin from app01 import views urlpatterns = [ url(r‘^login/‘, views.login), ]
from django.conf.urls import url from django.contrib import admin from app02 import views urlpatterns = [ url(r‘^login/‘, views.login), ]
Django2 URL配置
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