制作天气接口API服务器【完】

川长思鸟来 2023-06-09 10:27 21阅读 0赞

**结构**

backend:
    - apis:
      - views:
          weather.py
        __init__.py
        admin.py
        apps.py
        models.py
        urls.py
    - backend:
      __init__.py
      settings.py
      urls.py
      version_1_0.py
      wsgi.py
    - resources: # 资源
      - images:  # 图片资源
    - test:  # 测试
    - thirdparty:  # 第三方工具
    - utils:       # 工具类
      response.py
      weather_parse.py
    - app.yaml
    - manage.py

**response.py 封装数据**  
有些时候我们需要对数据再进行一定修改，写入一些信息啥的再进行返回。

class ReturnCode:
        SUCCESS = 200
        FAILED = -100
        RESOURCE_NOT_EXISTS = 404
        UNAUTHORIZED = 500
        BROKEN_AUTHORIZED_DATA = 501
        WRONG_PARAMS = 101
    
        @classmethod
        def message(cls, code):
            if code == cls.SUCCESS:
                return 'success'
            elif code == cls.FAILED:
                return 'failed'
            elif code == cls.UNAUTHORIZED:
                return 'unauthorized'
            elif code == cls.WRONG_PARAMS:
                return 'wrong params'
            elif code == cls.RESOURCE_NOT_EXISTS:
                return 'resource_not_exists'
            else:
                return ''
    
    # Mixin模式，使用Mixin可通过继承类直接使用它的方法
    class CommonResponseMixin(object):
        @classmethod
        def wrap_json_response(cls, data=None, code=None, message=None):
            response = { }
            if not code:
                code = ReturnCode.SUCCESS
            if not message:
                message = ReturnCode.message(code)
            if data:
                response['data'] = data
            response['result_code'] = code
            response['message'] = message
            return response

**weather.py 处理请求**

from django.http import HttpResponse, JsonResponse
    from utils.weather_parse import WeatherParse  # 导入第一部分写的天气模块
    from utils.response import CommonResponseMixin  # 处理数据封装
    from django.views import View  
    import json
    
    # 使用类视图进行http请求方法逻辑分离
    # 使用Mixin可通过继承类直接使用它的方法
    class WeatherView(View, CommonResponseMixin):
        def get(self, request):   # 只需实现post方法即可，前台使用post方法请求数据
            pass
    
        def post(self, request):
            data = []
            received_body = request.body
            received_body = json.loads(received_body)
            cities = received_body.get('cities')
            for city in cities:
                result = WeatherParse().get_weather_now(city)
                data.append(result)
            data = self.wrap_json_response(data=data)  # 数据封装
            return JsonResponse(data=data, safe=False, json_dumps_params={ 'ensure_ascii': False})

**路由逻辑**  
bakend.settings.py

......
    ROOT_URLCONF = 'backend.urls'
    ......

bakend.urls.py

from django.contrib import admin
    from django.urls import path, include
    
    urlpatterns = [
        path('api/v1.0/', include('backend.version_1_0'))
    ]

bakend.version\_1\_0.py

from django.urls import path, include
    
    urlpatterns = [
        path('service/', include('apis.urls')),
    ]

apis.urls.py

from django.urls import path
    from .views import weather, menu, image
    
    urlpatterns = [   
        path('weather', weather.WeatherView.as_view()),
    ]

运行测试：

python manage.py runserver

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM4OTAwNTY1_size_16_color_FFFFFF_t_70]  
天气接口API服务器制作完成，就差个前端展示啦

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