from flask import Flask, jsonify
app = Flask(__name__)
# 定义100 - 500错误码
class StatusCode(object):
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_418_IM_A_TEAPOT = 418
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_499_CANCELLED_ERROR = 499
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
# 定义一个异常类，继承Exception，
class APIException(Exception):
status = 'INTERNAL'
StatusCode = 400
details = []
message = {
"errors": {
"status": status,
"details": details
}
}
debug = None
def __init__(self, detail=None): # 初始化对象接收异常参数，传字典格式进来
if not detail:
return
self.details = []
if isinstance(detail, list):
self.details.extend(detail)
else:
self.details.append(detail)
@property
def errors(self): # 组装返回格式
self.message["errors"]['status'] = self.status
self.message["errors"]['details'] = self.details
self.message["errors"]['StatusCode'] = self.StatusCode
if self.debug:
self.message["errors"]["debug"] = self.debug
return self.message
# 下面是定义每个异常的错误类型
class InvalidArgumentError(APIException):
status = 'INVALID_ARGUMENT'
StatusCode = StatusCode.HTTP_404_NOT_FOUND
class FailedPreconditionError(APIException):
status = 'FAILED_PRECONDITION'
StatusCode = StatusCode.HTTP_400_BAD_REQUEST
class OutOfRangeError(APIException):
status = 'OUT_OF_RANGE'
StatusCode = StatusCode.HTTP_400_BAD_REQUEST
class UnauthenticatedError(APIException):
status = 'UNAUTHENTICATED'
StatusCode = StatusCode.HTTP_401_UNAUTHORIZED
class PermissionDeniedError(APIException):
status = 'PERMISSION_DENIED'
StatusCode = StatusCode.HTTP_403_FORBIDDEN
class NotFoundError(APIException):
status = 'NOT_FOUND'
StatusCode = StatusCode.HTTP_404_NOT_FOUND
class MethodNotAllowedError(APIException):
status = 'METHOD_NOT_ALLOWED'
StatusCode = StatusCode.HTTP_405_METHOD_NOT_ALLOWED
class AbortedError(APIException):
status = 'ABORTED'
StatusCode = StatusCode.HTTP_409_CONFLICT
class AlreadyExistsError(APIException):
status = 'ALREADY_EXISTS'
StatusCode = StatusCode.HTTP_409_CONFLICT
class ResourceExhaustedError(APIException):
status = 'RESOURCE_EXHAUSTED'
StatusCode = StatusCode.HTTP_429_TOO_MANY_REQUESTS
class CancelledError(APIException):
status = 'CANCELLED'
StatusCode = StatusCode.HTTP_499_CANCELLED_ERROR
class DataLossError(APIException):
status = 'DATA_LOSS'
StatusCode = StatusCode.HTTP_500_INTERNAL_SERVER_ERROR
class UnknownError(APIException):
status = 'UNKNOWN'
StatusCode = StatusCode.HTTP_500_INTERNAL_SERVER_ERROR
class InternalError(APIException):
status = 'INTERNAL'
StatusCode = StatusCode.HTTP_500_INTERNAL_SERVER_ERROR
class NotImplementError(APIException):
status = 'NOT_IMPLEMENTED'
StatusCode = StatusCode.HTTP_501_NOT_IMPLEMENTED
class UnavailableError(APIException):
status = 'UNAVAILABLE'
StatusCode = StatusCode.HTTP_503_SERVICE_UNAVAILABLE
class DeadlineExceededError(APIException):
status = 'DEADLINE_EXCEEDED'
StatusCode = StatusCode.HTTP_504_GATEWAY_TIMEOUT
# 定义一个装饰器，处理异常
def return_error(func):
def wrapper(*args, **kwargs):
try:
func(*args, **kwargs)
except Exception as e:
return e.errors
return wrapper
# 给函数做装饰
@return_error
def func1(error=True):
if error:
raise InvalidArgumentError({"field": "index", "message": "模拟抛出异常异常内容"})
return '无异常'
# 调用被装饰的函数
@app.route('/')
def index():
res = func1()
return jsonify(res)
if __name__ == '__main__':
app.run(host="0.0.0.0", debug=True)
