重写Django登录认证，实现用户名或者手机均可登录

1.Views.py

from django.contrib.auth.backends import ModelBackend
from django.db.models import Q

# 重写登录认证，实现手机号或者用户名登录
class CustomBackend(ModelBackend):
    def authenticate(self, request, username=None, password=None, **kwargs):
        try:
            user = models.UserInfo.objects.get(Q(username=username) | Q(phone=username))
            if user.check_password(password):
                return user
        except Exception as e:
            return None

2.settings.py

# 指定登录验证类
AUTHENTICATION_BACKENDS =('blog.views.CustomBackend',)