自定制auth认证类-jwt

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from rest_framework_jwt.authentication import BaseAuthentication,BaseJSONWebTokenAuthentication from rest_framework.exceptions import AuthenticationFailed from rest_framework_jwt.authentication import jwt_decode_handler from rest_framework_jwt.authentication import get_authorization_header,jwt_get_username_from_payload from rest_framework import exceptions class MyToken(BaseJSONWebTokenAuthentication):     def authenticate(self, request):         jwt_value=str(request.META.get('HTTP_AUTHORIZATION'))         # 认证         try:             payload = jwt_decode_handler(jwt_value)           except Exception:             raise exceptions.AuthenticationFailed("认证失败")         user=self.authenticate_credentials(payload)         return user,None       #局部使用，全局使用 ```