dJango中的ConnectionRefusedError在注册过程中休息api

注册用户时显示ConnectionRefusedError错误，

数据库上添加的基本信息，但密码字段为空白，提交的其他数据库字段请查找以下错误和我们的类代码，

Class

class ProfessionalRegistrationSerializer（serializers.HyperlinkedModelSerializer）：

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

Error

ConnectionRefusedError at / api / v1 / register / 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']

Traceback

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

132.response = wrapped_callback（request，* callback_args，** callback_kwargs）文件"/home/project_backend/env/lib/python3.5/site-packages/django/views/decorators/csrf.py" in wrapped_view 58. return view_func（* args，** kwargs）File "/home/project_backend/env/lib/python3.5/site-packages/django/views/generic/base.py" in view 71. return self.dispatch（request，* args，** kwargs ）文件"/home/project_backend/env/lib/python3.5/site-packages/rest_framework/views.py"在调度464中.response = self.handle_exception（exc）文件"/home/project_backend/env/lib/python3.5/site-packages/rest_framework/views.py"在调度461. response = handler（request，* args，** kwargs）文件"/home/project_backend/filmup/apps/registrations/views.py"在post 53. user = serializer.save（work_status = user_type）文件"/home/project_backend/env/lib/python3.5/site-packages/rest_framework/serializers.py"在保存175. self.instance = self.create（validated_data）文件"/home/project_backend/project/apps/registrations/serializers.py"在创建157. ** validated_data）文件"/home/project_backend/env/lib/python3.5/site-packages/django/db/models/manager.py"在manager_method 127. return getattr（self.get_queryset（），name）（* args，** kwargs ）文件"/home/project_backend/env/lib/python3.5/site-packages/django/db/models/query.py"在创建348. obj.save（force_insert = True，using = self.db）文件"/home/project_backend/project/libs/accounts/models.py"在保存217. super（） . save（* args，** kwargs）文件"/home/project_backend/env/lib/python3.5/site-packages/django/db/models/base.py"在保存734. force_update = force_update， update_fields = update_fields）文件"/home/project_backend/env/lib/python3.5/site-packages/django/db/models/base.py"在save_base 771中.update_fields = update_fields，raw = raw，using = using）文件"/home/project_backend/env/lib/python3.5/site-packages/django/dispatch/dispatcher.py"在s中结束189.响应=接收者（signal = self，sender = sender，** named）文件"/home/project_backend/filmup/libs/accounts/signals.py"在create_user_setting中19. create_ejabberd_user（instance）文件"/home/project_backend/project/libs/accounts/signals.py"在create_ejabberd_user中11. EjabberdUser.objects.create（username = str（user.id）， password = str（token.key））文件"/home/project_backend/project/libs/accounts/models.py"在创建73. ctl.register（user = kwargs ['username']，密码= kwargs ['password']）文件"/home/project_backend/project/libs/ejabberdctl.py"在寄存器54中.'password'：密码}）文件"/home/project_backend/project/libs/ejabberdctl.py"在ctl 32中 . 返回fn（self.params，payload）文件"/usr/lib/python3.5/xmlrpc/client.py" in call 1092. return self .__ send（self .__ name，args）file "/usr/lib/python3.5/xmlrpc/client.py" in request 1432. verbose = self . verbose File "/usr/lib/python3.5/xmlrpc/client.py" in request 1134. return self.single_request（host，处理程序，request_body，verbose）文件"/usr/lib/python3.5/xmlrpc/client.py"在single_request 1146中.http_conn = self.send_request（host，handler，request_body，verbose）文件"/usr/lib/python3.5/xmlrpc/client.py"在send_request 1259. self.send_content（connection，request_body）文件"/usr/lib/python3.5/xmlrpc/client.py" in send_content 1289.connection.endheaders（ request_body）文件"/usr/lib/python3.5/http/client.py" in endheaders 1102. self._send_output（message_body）文件"/usr/lib/python3.5/http/client.py" in _send_output 934.self.send（msg）File "/usr/lib/python3.5/http/client.py" in send 877.self.connect（）File "/usr/lib/python3.5/http/client.py" in connect 849.（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中引发错误文件"/usr/lib/python3.5/socket.py" .sock.connect（sa）