urls 基本使用
通过导入
include模块，实现对层级结构url的路由
urls.py ---> 主路由
from django.conf.urls import url,include
from django.contrib import admin
from karlapp import views
urlpatterns = [
url(r'^admin/', admin.site.urls),
url(r'^login/$', views.login),
url(r'^api/', include('karlapp.url_api')), # 相当于分路由api/xxx的汇聚点
]
url_api.py ---> 分路由
from django.conf.urls import url
from karlapp import view_api
urlpatterns = [
url(r'^list.html', view_api.list),
url(r'^add.html', view_api.add),
url(r'^update.html', view_api.update),
url(r'^delete.html', view_api.delete),
]
views.py
from django.shortcuts import render,HttpResponse
from karlapp import models
def login(request):
if request.method == 'GET':
a = [1,]
obj_li = models.UserInfo.objects.all()
# obj_li = models.UserInfo.objects.filter(username='test')
for obj in obj_li:
print('username ---> ', obj.username)
print('password ---> ', obj.password)
return render(request, 'login.html', locals())
def index(request):
return render(request, 'index.html', )
def list(request):
return HttpResponse("list page")
def add(request):
return HttpResponse("add page")
def update(request):
return HttpResponse("update page")
def delete(request):
return HttpResponse("delete page")
urls 补充使用
1. URL正则表达式匹配
正则表达式元字符
例如：如下两种等价
url(r'^(?P<num>\d+)/update.html', views.update),url(r'^(?P<num>[0-9]+)/update.html', views.update),
2. URL传递参数
固定格式：
(?P<var_name>*reg*)
url_api.py
from django.conf.urls import url
from karlapp import views
urlpatterns = [
url(r'^list.html', views.list),
url(r'^add.html', views.add),
# url(r'^(?P<num>[0-9]+)/update.html', views.update),
url(r'^(?P<num>\d+)/update.html', views.update), # 参数num
url(r'^delete.html', views.delete),
]
views.py
...略
def update(request, num): # 传参
print('update ---> num', num) # 打印参数
return HttpResponse("update page")
...略
浏览器中输入 http://127.0.0.1:8000/api/321/update.html，pycharm打印如下：
[19/Dec/2018 14:13:16] "GET /api/321/update.html HTTP/1.1" 200 11
update ---> num 321
