Dj go queryset和字典使用

一.queryset

urls

urlpatterns = {
# path('admin/', admin.site.urls),
   url(r'^login', views.login),
   url(r'^home', views.home),
   url(r'^hty', views.hty),
   url(r'^useradd', views.useradd),
   url(r'^ui', views.ui),
}

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2.views.py

def ui(request):
   ui = models.UseInfo.objects.all()
   print(ui)
   print(type(ui))
   return render(request, 'ui.html', {'ui': ui})

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3.models

class UseInfo(models.Model):
   username = models.CharField(max_length=32)
   passwd = models.CharField(max_length=64)

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4.html

5.浏览

第一个obj 接收第二个obj的返回值

u1 = models.user.objects.all()

ret['racks'] = {'data': [obj for obj in u1.values()]}

print(ret)

{'racks': {'data': [{'id': 2, 'name': 'xiaoli', 'password': '766666', 'email': '2@q.com', 'sex': '2', 'c_time': datetime.datetime(2022, 4, 7, 10, 44, 39)}, {'id': 1, 'name': 'root', 'password': '123456', 'email': '1@q.com', 'sex': '1', 'c_time': datetime.datetime(2022, 4, 28, 15, 53, 45)}]}}

HttpResponse("hello")             ##可以是字符串

JsonResponse({})                    ##json,不可以是字符串

return render(request, "myapp/index.html", {"foo": "bar"})

位置参数 (是元组)

关键字参数(是字典)

OS执行命令

#########################

返回值

[{'name':'java','age':'15'},{'name':'python','age':'16'}]

querydict转字典