Django自定义封装全局异常_django全局异常处理器

Django自定义封装全局异常

定义异常处理类

# utils/common_exception.py
from rest_framework.views import exception_handler as drf_exception_handler
from rest_framework.response import Response
from .common_logger import logger
from rest_framework.exceptions import ValidationError, APIException, AuthenticationFailed

# 自定义的异常类，可以在其他地方主动抛出
class NoPermissionException(Exception):
    pass

def APIException(exc, context):
    # 获取异常信息上下文
    request = context['request']
    view = context['view']
    ip = request.META['REMOTE_ADDR']
    path = request.get_full_path()
    method = request.method
    user_id = request.user.id or '[匿名用户]'
    logger.error(f"""
    操作出错：{str(exc)}, 请求方式：{method}, 视图函数{view}, ip：{ip}, 访问路径：{path}, 用户：{user_id}
    """)

    response = drf_exception_handler(exc, context)

    # 如果response存在则说明是drf的异常
    if response:
        logger.error(str(exc))
        err = f'DRF异常：{response.data}'
        code = 900
        
	# 如果response不存在则说明是函数内部异常，需要额外细分
    else:
     	# 这里仅做两个示例，可以根据实际情况自行添加
        if isinstance(exc, NameError):
            err = f'使用未引入的变量：{type(exc).__name__, str(exc)}'
            code = 902

        elif isinstance(exc, ZeroDivisionError):
            err = f'不能除以0：{type(exc).__name__, str(exc)}'
            code = 903

        else:
            err = f'{type(exc).__name__, str(exc)}'
            code = 901

    return Response({'code': code, 'msg': err})
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注册到settings

REST_FRAMEWORK = {
    'EXCEPTION_HANDLER': 'utils.common_exception.APIException',
}
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'
运行
运行

视图抛出异常示例

from rest_framework.views import APIView
from rest_framework.exceptions import ValidationError, APIException, AuthenticationFailed
from utils.common_exception import NoPermissionException

class ExceptionViews1(APIView):
    def get(self,request):
        raise NoPermissionException('我是自定义异常')

class ExceptionViews2(APIView):
    def get(self,request):
        raise APIException('我是DRF异常')

class ExceptionViews3(APIView):
    def get(self,request):
        4/0
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