# books/serializer.py
from rest_framework import serializers
from books.models import Books
class BooksSerializer(serializers.ModelSerializer):
class Meta:
model = Books
fields = '__all__'
在views.py文件中写对应的视图集BooksViewSet来处理请求：
# books/views.py
from rest_framework import viewsets
from books.models import Books
from books.serializer import BooksSerializer
class BooksViewSet(viewsets.ModelViewSet):
queryset = Books.objects.all()
serializer_class = BooksSerializer
在urls.py文件中写对应的路由映射：
# books/urls.py
from django.urls import path, include
from rest_framework.routers import DefaultRouter
from books import views
router = DefaultRouter()
router.register('books', views.BooksViewSet)
urlpatterns = [
path('', include(router.urls)),
]
from wsgiref.simple_server import make_server import falcon
classThingsResource: defon_get(self, req, resp): """Handles GET requests""" resp.status = falcon.HTTP_200 # This is the default status resp.content_type = falcon.MEDIA_TEXT # Default is JSON, so override resp.text = ('\nTwo things awe me most, the starry sky ' 'above me and the moral law within me.\n' '\n' ' ~ Immanuel Kant\n\n')
app = falcon.App()
things = ThingsResource()
app.add_route('/things', things)
if __name__ == '__main__': with make_server('', 8000, app) as httpd: print('Serving on port 8000...')
还有一个问题可能你们不知道，Sanic 在创建之初目标就是创建一个可以用于生产环境的 Web 框架。可能有些框架会明确的说明框架中自带的 Run 方法仅用于测试环境，不要使用自带的 Run 方法用于部署环境。但是 Sanic 所创建的不止是一个用于测试环境的应用，更是可以直接用在生产环境中的应用。省去了使用 unicorn 等部署的烦恼！
# Create your views here. from django.http import HttpResponse from jinja2 import Environment, FileSystemLoader from pyecharts.globals import CurrentConfig
因此http协议创始人警告我们这些凡人们正在错误的使用http协议，除了警告，他还发表了一篇博客，大概意思就是教大家如何正确使用http协议，如何正确定义url，这就是REST（Representational State Transfer），不需要管这几个英文单词代表什么意思，只需要记住下面一句话：
用url唯一定位资源，用Http请求方式（GET, POST, DELETE, PUT)描述用户行为
按照之前的方式，我们使用request.POST, 如果打印该值，会发现是一个空对象：request post <QueryDict: {}>，该现象证明Django并不能处理请求协议为application/json编码协议的数据，我们可以去看看request源码，可以看到下面这一段：
if self.content_type == 'multipart/form-data':
if hasattr(self, '_body'):
# Use already read data
data = BytesIO(self._body)
else:
data = self
try:
self._post, self._files = self.parse_file_upload(self.META, data)
except MultiPartParserError:
# An error occurred while parsing POST data. Since when
# formatting the error the request handler might access
# self.POST, set self._post and self._file to prevent
# attempts to parse POST data again.
# Mark that an error occurred. This allows self.__repr__ to
# be explicit about it instead of simply representing an
# empty POST
self._mark_post_parse_error()
raise
elif self.content_type == 'application/x-www-form-urlencoded':
self._post, self._files = QueryDict(self.body, encoding=self._encoding), MultiValueDict()
else:
self._post, self._files = QueryDict(encoding=self._encoding), MultiValueDict()
@classonlymethod
def as_view(cls, **initkwargs):
"""Main entry point for a request-response process."""
for key in initkwargs:
if key in cls.http_method_names:
raise TypeError("You tried to pass in the %s method name as a "
"keyword argument to %s(). Don't do that."
% (key, cls.__name__))
if not hasattr(cls, key):
raise TypeError("%s() received an invalid keyword %r. as_view "
"only accepts arguments that are already "
"attributes of the class." % (cls.__name__, key))
def view(request, *args, **kwargs):
self = cls(**initkwargs)
if hasattr(self, 'get') and not hasattr(self, 'head'):
self.head = self.get
self.request = request
self.args = args
self.kwargs = kwargs
return self.dispatch(request, *args, **kwargs)
view.view_class = cls
view.view_initkwargs = initkwargs
# take name and docstring from class
update_wrapper(view, cls, updated=())
# and possible attributes set by decorators
# like csrf_exempt from dispatch
update_wrapper(view, cls.dispatch, assigned=())
return view
@classonlymethod
def as_view(cls, **initkwargs):
"""Main entry point for a request-response process."""
for key in initkwargs:
if key in cls.http_method_names:
raise TypeError("You tried to pass in the %s method name as a "
"keyword argument to %s(). Don't do that."
% (key, cls.__name__))
if not hasattr(cls, key):
raise TypeError("%s() received an invalid keyword %r. as_view "
"only accepts arguments that are already "
"attributes of the class." % (cls.__name__, key))
def view(request, *args, **kwargs):
if request.content_type == "application/json":
import json
return HttpResponse(json.dumps({"error": "Unsupport content type!"}))
self = cls(**initkwargs)
if hasattr(self, 'get') and not hasattr(self, 'head'):
self.head = self.get
self.request = request
self.args = args
self.kwargs = kwargs
return self.dispatch(request, *args, **kwargs)
view.view_class = cls
view.view_initkwargs = initkwargs
# take name and docstring from class
update_wrapper(view, cls, updated=())
# and possible attributes set by decorators
# like csrf_exempt from dispatch
update_wrapper(view, cls.dispatch, assigned=())
return view
