day71test

目录

• 练习：
  • settings.py
  • views.py:
  • exception.py
  • urls.py

练习：

视图类渲染，解析, 异常配置:

作业：
    1.、简单过过请求模块的源码流程，建立一个视图类，完成一项渲染模块与解析模块的全局,局部配置
<span class="hljs-number">2.</span>、在自己项目中自定义一下异常处理函数，并配置给项目</code></pre>

settings.py
全局配置：

REST_FRAMEWORK = {

# 解析模块

'DEFAULT_PARSER_CLASSES' : {

'rest_framework.parsers.JSONParser',

'rest_framework.parsers.FormParse',

'rest_framework.parsers.JSONParser',

},

#渲染模块

'DEFAULT_RENDERER_CLASSES': {

'rest_framework.renderers.JSONRenderer',

'rest_framework.renderers.BrowsableAPIRenderer',

},

# 自定义配置异常模块

'EXCEPTION_HANDLER': 'api.exception.exception_handler',

}

views.py:
视图类局部配置：

from rest_framework.parsers import JSONParser,FormParser,MultiPartParser

from rest_framework.renderers import JSONRenderer

from rest_framework.renderers import BrowsableAPIRenderer

from rest_framework.views import APIView

from rest_framework.response import Response

class Student(APIView):

parser_classes = [JSONParseer]   #局部解析配置

renderer_classes = [JSONRenderer] #局部渲染配置
<span class="hljs-function"><span class="hljs-keyword">def</span> <span class="hljs-title">get</span><span class="hljs-params">(self,request,*args,**kwargs)</span>:</span>
    <span class="hljs-keyword">return</span> Response(<span class="hljs-string">'drf get ok'</span>)

<span class="hljs-function"><span class="hljs-keyword">def</span> <span class="hljs-title">post</span><span class="hljs-params">(self,request,*args,**kwargs)</span>:</span>
    <span class="hljs-keyword">return</span> Response(<span class="hljs-string">'drf post ok'</span>)


exception.py
from rest_framework.views import exception_handler as drf_exception_handler
from rest_framework.response import Response
from rest_framework import status  

def exception_handler(exc, context):

response = drf_exception_handler(exc, context)

detail = '%s-%s-%s' %(context.get('view'),context.get('request'),exc)

if not response:

response = Response({'detail':detail},, status=status.HTTP_500_INTERNAL_SERVER_ERROR, exception=True)

else:

response.data = {'detail':detail}

return response


urls.py
urls.py:
    from django.conf.urls import url, include
    from django.contrib import admin
urlpatterns = [
    url(<span class="hljs-string">r'^admin/'</span>, admin.site.urls),
    url(<span class="hljs-string">r'^api/'</span>, include(<span class="hljs-string">'api.urls'</span>)),
]

api.urls.py:
<span class="hljs-keyword">from</span> django.conf.urls <span class="hljs-keyword">import</span> url
<span class="hljs-keyword">from</span> . <span class="hljs-keyword">import</span>  views
urlpatterns = {
    url(<span class="hljs-string">r'^student/$'</span>,views.Student.as_view()),
}</code></pre>