Django 自动逸错误捕获机制

自定义错误捕获:

在drf和django框架中,仅仅内置了一些常见的错误捕获,如:

• ​

  HTTP_100_CONTINUE = 100
  HTTP_101_SWITCHING_PROTOCOLS = 101
  HTTP_200_OK = 200
  HTTP_201_CREATED = 201
  HTTP_202_ACCEPTED = 202
  HTTP_203_NON_AUTHORITATIVE_INFORMATION = 203
  HTTP_204_NO_CONTENT = 204
  HTTP_205_RESET_CONTENT = 205
  HTTP_206_PARTIAL_CONTENT = 206
  HTTP_207_MULTI_STATUS = 207
  HTTP_208_ALREADY_REPORTED = 208
  HTTP_226_IM_USED = 226
  HTTP_300_MULTIPLE_CHOICES = 300
  HTTP_301_MOVED_PERMANENTLY = 301
  HTTP_302_FOUND = 302
  HTTP_303_SEE_OTHER = 303
  HTTP_304_NOT_MODIFIED = 304
  HTTP_305_USE_PROXY = 305
  HTTP_306_RESERVED = 306
  HTTP_307_TEMPORARY_REDIRECT = 307
  HTTP_308_PERMANENT_REDIRECT = 308
  HTTP_400_BAD_REQUEST = 400
  HTTP_401_UNAUTHORIZED = 401
  HTTP_402_PAYMENT_REQUIRED = 402
  HTTP_403_FORBIDDEN = 403
  HTTP_404_NOT_FOUND = 404
  HTTP_405_METHOD_NOT_ALLOWED = 405
  HTTP_406_NOT_ACCEPTABLE = 406
  HTTP_407_PROXY_AUTHENTICATION_REQUIRED = 407
  HTTP_408_REQUEST_TIMEOUT = 408
  HTTP_409_CONFLICT = 409
  HTTP_410_GONE = 410
  HTTP_411_LENGTH_REQUIRED = 411
  HTTP_412_PRECONDITION_FAILED = 412
  HTTP_413_REQUEST_ENTITY_TOO_LARGE = 413
  HTTP_414_REQUEST_URI_TOO_LONG = 414
  HTTP_415_UNSUPPORTED_MEDIA_TYPE = 415
  HTTP_416_REQUESTED_RANGE_NOT_SATISFIABLE = 416
  HTTP_417_EXPECTATION_FAILED = 417
  HTTP_422_UNPROCESSABLE_ENTITY = 422
  HTTP_423_LOCKED = 423
  HTTP_424_FAILED_DEPENDENCY = 424
  HTTP_426_UPGRADE_REQUIRED = 426
  HTTP_428_PRECONDITION_REQUIRED = 428
  HTTP_429_TOO_MANY_REQUESTS = 429
  HTTP_431_REQUEST_HEADER_FIELDS_TOO_LARGE = 431
  HTTP_451_UNAVAILABLE_FOR_LEGAL_REASONS = 451
  HTTP_500_INTERNAL_SERVER_ERROR = 500
  HTTP_501_NOT_IMPLEMENTED = 501
  HTTP_502_BAD_GATEWAY = 502
  HTTP_503_SERVICE_UNAVAILABLE = 503
  HTTP_504_GATEWAY_TIMEOUT = 504
  HTTP_505_HTTP_VERSION_NOT_SUPPORTED = 505
  HTTP_506_VARIANT_ALSO_NEGOTIATES = 506
  HTTP_507_INSUFFICIENT_STORAGE = 507
  HTTP_508_LOOP_DETECTED = 508
  HTTP_509_BANDWIDTH_LIMIT_EXCEEDED = 509
  HTTP_510_NOT_EXTENDED = 510
  HTTP_511_NETWORK_AUTHENTICATION_REQUIRED = 511

但是一些偏门的,或者说,更加细微之处的错误,就需要我们自定义一些错误捕获函数来进行捕获

那么,废话不多说,上代码

1. 第一步,创建一个错误捕获函数的文件

   from rest_framework import status
   from rest_framework.response import Response
   from rest_framework.views import exception_handler
   
   
   def func(exc,context):
       #实例化框架自带的错误捕获,先进行筛选
       response = exception_handler(exc,context)
   	#当没有捕获到错误之后,执行我们自定义的错误验证机制
       if response == None:
           '''开始进行判断'''
           if isinstance(exc,ZeroDivisionError):
               print('服务器错误')
               response = Response('服务器错误',status=status.HTTP_500_INTERNAL_SERVER_ERROR)
       #上面的验证返回的结果存储到response,这是一个已经完成序列化的数据,可以直接返回
       return response

2. 在配置文件setting中进行配置(通常情况下,我们创建一个新的文件夹来存放这个文件,然后再setting中以app的形式注册这个文件夹)

   REST_FRAMEWORK = {
       'EXCEPTION_HANDLER':'utiles.excaptions.func'
   }

完成了上述的工作之后,当我们的码出现错误之后,将会自动进行错误捕获