cd weather

python manage.py runserver

 python manage.py startapp main

cd main 

from django.contrib import admin
from django.urls import path, include


urlpatterns = [
	path('admin/', admin.site.urls),
	path('', include('main.urls')),
]

from django.urls import path
from . import views

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

from django.shortcuts import render
# 導(dǎo)入json以將json數(shù)據(jù)加載到python字典
import json
# urllib.request 向api發(fā)出請(qǐng)求
import urllib.request


def index(request):
	if request.method == 'POST':
		city = request.POST['city']
		''' api密鑰可能已過(guò)期，請(qǐng)使用您自己的api密鑰
                    將api_key替換為appid=“your_api_key_here” '''

		# 包含來(lái)自API的JSON數(shù)據(jù)

		source = urllib.request.urlopen(
			'http://api.openweathermap.org/data/2.5/weather?q ='
					+ city + '&appid = your_api_key_here').read()

		# 將JSON數(shù)據(jù)轉(zhuǎn)換為字典
		list_of_data = json.loads(source)

		# 變量list_of_data的數(shù)據(jù)
		data = {
			"country_code": str(list_of_data['sys']['country']),
			"coordinate": str(list_of_data['coord']['lon']) + ' '
						+ str(list_of_data['coord']['lat']),
			"temp": str(list_of_data['main']['temp']) + 'k',
			"pressure": str(list_of_data['main']['pressure']),
			"humidity": str(list_of_data['main']['humidity']),
		}
		print(data)
	else:
		data ={}
	return render(request, "main/index.html", data)

python manage.py makemigrations
python manage.py migrate

python manage.py runserver