基于jwt模块实现登录功能

view代码

from rest_framework.views import APIView
from rest_framework.response import Response


class Login(APIView):
    '''
    登录模块
    '''
    def post(self,request):
        # 获取用户名
        name = request.data.get('name')
        # 获取密码
        password = request.data.get('password')
        # 判断参数完整性
        if not all([name, password]):
            return Response({'msg': '请输入完整的账号密码', 'code': 400})
        # 查询是否有该用户
        find_user_first = User.objects.filter(name=name).first()
        if not find_user_first:
            return Response({'msg': '没有找到此用户', 'code': 400})
        # 生成token对象
        jwt_obj = JwtClass()
        # 生成token
        token = jwt_obj.create_token(user_number=find_user_first.user_number)
        queryset = User.objects.filter(name=name).first()
        ser_obj = LoginSer(queryset)
        if not token:
            return Response({'msg': '生成标识失败', 'code': 400})
        return Response({'msg': '登录成功', 'code': 200, 'token': token, 'data': ser_obj.data})

jwt.py代码

# jwt万能类
import jwt
import datetime
from .settings import SECRET_KEY
# from apps.user.models import User


class JwtClass(object):
    # 加密token
    def create_token(self, user_number):
        '''
        加密token
        :param user_number:
        :return:
        '''
        if user_number:
            try:
                # 过期时间为一天
                token = jwt.encode(
                    {
                        'user_number': user_number,
                        'exp': datetime.datetime.now() + datetime.timedelta(days=1)
                    },
                    key=SECRET_KEY, algorithm='HS256'
                )
            except Exception as err:
                print(err)
                return None
            return token
        else:
            return None

    # 解密token
    def check_token(self, token):
        '''
        解密token
        :param token:
        :return:
        '''
        if token:
            try:
                data = jwt.decode(token, key=SECRET_KEY, algorithms=['HS256'])
                user_number = data['user_number']
            except Exception as err:
                print(err)
                print('解密失败')
                return None
            else:
                if User.objects.filter(user_number=user_number):
                    return user_number
                else:
                    return None
        else:
            return None

models代码

class User(models.Model):
    name = models.CharField(max_length=256, verbose_name='用户名')
    password = models.CharField(max_length=256, verbose_name='密码')

serlizer代码

class UserSer(serializers.ModelSerializer):
    class Meta:
        model = User
        fields = "__all__"

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