问注册过程中dJango rest api中的ConnectionRefusedError

EN

注册用户时显示ConnectionRefusedError错误，

在数据库中添加了基本信息，但密码字段为空，并提交了其他数据库字段，请查找以下错误和我们的类代码，

类

ProfessionalRegistrationSerializer(serializers.HyperlinkedModelSerializer)：类

password = serializers.CharField(max_length=20, write_only=True)


email = serializers.EmailField()
first_name = serializers.CharField(max_length=30)
last_name = serializers.CharField(max_length=30)

class Meta:
    model = User

    fields = ('url', 'id', 'first_name', 'last_name', 'email', 'password')

def validate_email(self, value):
    from validate_email_address import validate_email
    if User.all_objects.filter(email=value.lower()).exists():
        raise serializers.ValidationError('User with this email already exists.')

    return value.lower()

def create(self, validated_data):
    password = validated_data.pop('password')
    email = validated_data.pop('email')
    user = User.objects.create(
        username=email.lower(),
        email=email.lower(),
        role_id=1,
        **validated_data)
    user.set_password(password)

    user.save()

    return user

错误

注册地址/api/v1/ ConnectionRefusedError /professional/ Errno 111连接被拒绝请求方法: POST请求URL：http://127.0.0.1:8000/api/v1/register/professional/ Django版本: 1.8.14异常类型: ConnectionRefusedError异常值：

Errno 111连接被拒绝异常位置: /usr/lib/python3.5/socket.py在create_connection中，第702行Python可执行文件: /home/project_backend/env/bin/python Python版本: 3.5.2 Python路径：

'/home/project_backend'，'/home/project_backend/env/lib/python35.zip'，'/home/project_backend/env/lib/python3.5'，'/home/project_backend/env/lib/python3.5/plat-x86_64-linux-gnu'，'/home/project_backend/env/lib/python3.5/lib-dynload'，'/usr/lib/python3.5'，'/usr/lib/python3.5/plat-x86_64-linux-gnu'，'/home/project_backend/env/lib/python3.5/site-packages'，'/home/project_backend/env/lib/python3.5/site-packages/setuptools-36.0.1-py3.5.egg‘

回溯

File "/home/project_backend/env/lib/python3.5/site-packages/django/core/handlers/base.py" in get_response

132. "/home/project_backend/env/lib/python3.5/site-packages/django/views/decorators/csrf.py“= wrapped_view 58中的wrapped_callback(request，*callback_args，**callback_kwargs)文件响应。在视图71中返回view_func(*args，**kwargs)文件"/home/project_backend/env/lib/python3.5/site-packages/django/views/generic/base.py“。在调度464中返回self.dispatch( "/home/project_backend/env/lib/python3.5/site-packages/rest_framework/views.py“，*args，**kwargs)文件请求。响应=调度461中的self.handle_exception(exc)文件响应。响应=处理程序(请求，*args，**kwargs) post 53中的文件"/home/project_backend/filmup/apps/registrations/views.py“。保存175中的user = serializer.save(work_status=user_type)文件"/home/project_backend/env/lib/python3.5/site-packages/rest_framework/serializers.py“。create 157中的"/home/project_backend/project/apps/registrations/serializers.py“= self.instance = self.create(validated_data)文件。**validated_data) manager_method 127中的文件"/home/project_backend/env/lib/python3.5/site-packages/django/db/models/manager.py“。在create 348中返回getattr(self.get_queryset()，"/home/project_backend/env/lib/python3.5/site-packages/django/db/models/query.py“)(*args，**kwargs)文件名称。保存217中的obj.save(force_insert=True，using=self.db)文件"/home/project_backend/project/libs/accounts/models.py“。保存734中的"/home/project_backend/env/lib/python3.5/site-packages/django/db/models/base.py“().save(*args，**kwargs)文件。force_update=force_update，update_fields=update_fields) save_base 771中的文件"/home/project_backend/env/lib/python3.5/site-packages/django/db/models/base.py“。update_fields=update_fields，raw=raw，using=using)发送189中的文件"/home/project_backend/env/lib/python3.5/site-packages/django/dispatch/dispatcher.py“。"/home/project_backend/filmup/libs/accounts/signals.py“= receiver(signal=self，sender=sender，**named) create_user_setting中的文件"/home/project_backend/project/libs/accounts/signals.py”19. create_user_setting中的create_ejabberd_user (实例)文件response 11. create 73中的EjabberdUser.objects.create(username=str(user.id)，“/home/project_backend/project/libs/accounts/signals.py”(token.key))文件response。寄存器54中的ctl.register(user=kwargs‘用户名’，password=kwargs‘密码’)文件密码。‘"/home/project_backend/project/libs/ejabberdctl.py“’：password}) ctl 32中的文件密码。call 1092中的return fn(self.params，有效负载)文件"/usr/lib/python3.5/xmlrpc/client.py“。在__request 1432中返回self.__send(self.__name，args)文件"/usr/lib/python3.5/xmlrpc/client.py“。请求1134中的verbose=self.__verbose文件"/usr/lib/python3.5/xmlrpc/client.py“。在single_request 1146中返回self.single_request(主机，处理程序，request_body，详细)文件"/usr/lib/python3.5/xmlrpc/client.py“。send_request 1259中的http_conn =self.send_request(主机，处理程序，request_body，详细)文件"/usr/lib/python3.5/xmlrpc/client.py“。send_content 1289中的self.send_content(连接，request_body)文件"/usr/lib/python3.5/xmlrpc/client.py“。connection.endheaders(request_body)文件"/usr/lib/python3.5/http/client.py“。_send_output 934中的self._send_output(message_body)文件"/usr/lib/python3.5/http/client.py“。发送877中的self.send(msg)文件"/usr/lib/python3.5/http/client.py“。连接849中的self.connect()文件"/usr/lib/python3.5/http/client.py“。(self.host，self.port)，self.timeout，self.source_address) create_connection 711中的文件"/usr/lib/python3.5/socket.py“。在create_connection 702中创建错误文件"/usr/lib/python3.5/socket.py“。sock.connect(sa)