Django路由

一、传统路由

urls.py

urlpatterns = [
    path('index/',views.index)
]

views.py

def index(request):
    try:
        obj_stu = Student.objects.all().values()
        students = list(obj_stu)
        return JsonResponse({'code': 1, 'data': students})
    except Exception as e:
        return JsonResponse({'code': 0, 'meg': '获取学生信息出现异常，具体错误:' + str(e)})

二、正则路由

urlpatterns = [
    path('api/',include("apps.api.urls")),
    path('web/',include("apps.web.urls")),
]

三、路由分发（多app）

urlpatterns = [
    path('api/',include("apps.api.urls")),
    path('web/',include("apps.web.urls")),
]

四、手动路由分发(单个app)

urlpatterns = [
    path('user/add/',views.user_add),
    path('user/delete/',views.user_delete),
    path('user/updata/',views.user_updata),
    path('user/list/',views.user_list),

    path('user/',([
                     path('add/',views.user_add),
                     path('delete/',views.user_add),
                     path('updata/',views.user_updata),
                     path('list/',views.user_list),
                 ],None,None)),

]

路由分发的本质

• URL对应函数

 path('user/add/',views.user_add),

• URL对应元组

  path('user/add/',(元素，appnameh元素,namespance元素)),
  
  path('api/',include("apps.api.urls")),
  
  path('user/add',([],None,None)),
  

urlpatterns = [
    path('user/add/',views.user_add),
    path('user/delete/',views.user_delete),
    path('user/updata/',views.user_updata),
    path('user/list/',views.user_list),

    path('user/',([
                     path('add/',views.user_add),
                     path('delete/',views.user_add),
                     path('updata/',views.user_updata),
                     path('list/',views.user_list),
                 ],None,None)),
    path('user', include(([
                             path('add/',views.user_add),
                             path('delete/',views.user_add),
                             path('updata/',views.user_updata),
                             path('list/',views.user_list),
                    ],None))),

]

路由name

给路由起名字

urlpatterns = [
    path('login/',views.login,name = "v1"),
    path('auth/',views.auth, name = "v2")
]

视图函数中

url = reverse("v2") #/auth/

HTML中

<a href = "/xxx/xxx/xx/">添加</a>

```html
<a href = "{% url 'v2' %}">添加</a>