本文共 5888 字，大约阅读时间需要 19 分钟。

这里报错的是：

django.db.utils.IntegrityError: (1062, "Duplicate entry '' for key 'mobile'")

翻译过来就是，重复输入了手机号。

Traceback (most recent call last):  File "manage.py", line 22, in 
   
        execute_from_command_line(sys.argv)  File "/home/python/.virtualenvs/django_py3_1.11/lib/python3.5/site-packages/django/core/management/__init__.py", line 364, in execute_from_command_line    utility.execute()  File "/home/python/.virtualenvs/django_py3_1.11/lib/python3.5/site-packages/django/core/management/__init__.py", line 356, in execute    self.fetch_command(subcommand).run_from_argv(self.argv)  File "/home/python/.virtualenvs/django_py3_1.11/lib/python3.5/site-packages/django/core/management/base.py", line 283, in run_from_argv    self.execute(*args, **cmd_options)  File "/home/python/.virtualenvs/django_py3_1.11/lib/python3.5/site-packages/django/contrib/auth/management/commands/createsuperuser.py", line 63, in execute    return super(Command, self).execute(*args, **options)  File "/home/python/.virtualenvs/django_py3_1.11/lib/python3.5/site-packages/django/core/management/base.py", line 330, in execute    output = self.handle(*args, **options)  File "/home/python/.virtualenvs/django_py3_1.11/lib/python3.5/site-packages/django/contrib/auth/management/commands/createsuperuser.py", line 183, in handle    self.UserModel._default_manager.db_manager(database).create_superuser(**user_data)  File "/home/python/.virtualenvs/django_py3_1.11/lib/python3.5/site-packages/django/contrib/auth/models.py", line 170, in create_superuser    return self._create_user(username, email, password, **extra_fields)  File "/home/python/.virtualenvs/django_py3_1.11/lib/python3.5/site-packages/django/contrib/auth/models.py", line 153, in _create_user    user.save(using=self._db)  File "/home/python/.virtualenvs/django_py3_1.11/lib/python3.5/site-packages/django/contrib/auth/base_user.py", line 80, in save    super(AbstractBaseUser, self).save(*args, **kwargs)  File "/home/python/.virtualenvs/django_py3_1.11/lib/python3.5/site-packages/django/db/models/base.py", line 808, in save    force_update=force_update, update_fields=update_fields)  File "/home/python/.virtualenvs/django_py3_1.11/lib/python3.5/site-packages/django/db/models/base.py", line 838, in save_base    updated = self._save_table(raw, cls, force_insert, force_update, using, update_fields)  File "/home/python/.virtualenvs/django_py3_1.11/lib/python3.5/site-packages/django/db/models/base.py", line 924, in _save_table    result = self._do_insert(cls._base_manager, using, fields, update_pk, raw)  File "/home/python/.virtualenvs/django_py3_1.11/lib/python3.5/site-packages/django/db/models/base.py", line 963, in _do_insert    using=using, raw=raw)  File "/home/python/.virtualenvs/django_py3_1.11/lib/python3.5/site-packages/django/db/models/manager.py", line 85, in manager_method    return getattr(self.get_queryset(), name)(*args, **kwargs)  File "/home/python/.virtualenvs/django_py3_1.11/lib/python3.5/site-packages/django/db/models/query.py", line 1076, in _insert    return query.get_compiler(using=using).execute_sql(return_id)  File "/home/python/.virtualenvs/django_py3_1.11/lib/python3.5/site-packages/django/db/models/sql/compiler.py", line 1112, in execute_sql    cursor.execute(sql, params)  File "/home/python/.virtualenvs/django_py3_1.11/lib/python3.5/site-packages/django/db/backends/utils.py", line 79, in execute    return super(CursorDebugWrapper, self).execute(sql, params)  File "/home/python/.virtualenvs/django_py3_1.11/lib/python3.5/site-packages/django/db/backends/utils.py", line 64, in execute    return self.cursor.execute(sql, params)  File "/home/python/.virtualenvs/django_py3_1.11/lib/python3.5/site-packages/django/db/utils.py", line 94, in __exit__    six.reraise(dj_exc_type, dj_exc_value, traceback)  File "/home/python/.virtualenvs/django_py3_1.11/lib/python3.5/site-packages/django/utils/six.py", line 685, in reraise    raise value.with_traceback(tb)  File "/home/python/.virtualenvs/django_py3_1.11/lib/python3.5/site-packages/django/db/backends/utils.py", line 64, in execute    return self.cursor.execute(sql, params)  File "/home/python/.virtualenvs/django_py3_1.11/lib/python3.5/site-packages/django/db/backends/mysql/base.py", line 101, in execute    return self.cursor.execute(query, args)  File "/home/python/.virtualenvs/django_py3_1.11/lib/python3.5/site-packages/pymysql/cursors.py", line 170, in execute    result = self._query(query)  File "/home/python/.virtualenvs/django_py3_1.11/lib/python3.5/site-packages/pymysql/cursors.py", line 328, in _query    conn.query(q)  File "/home/python/.virtualenvs/django_py3_1.11/lib/python3.5/site-packages/pymysql/connections.py", line 516, in query    self._affected_rows = self._read_query_result(unbuffered=unbuffered)  File "/home/python/.virtualenvs/django_py3_1.11/lib/python3.5/site-packages/pymysql/connections.py", line 727, in _read_query_result    result.read()  File "/home/python/.virtualenvs/django_py3_1.11/lib/python3.5/site-packages/pymysql/connections.py", line 1066, in read    first_packet = self.connection._read_packet()  File "/home/python/.virtualenvs/django_py3_1.11/lib/python3.5/site-packages/pymysql/connections.py", line 683, in _read_packet    packet.check_error()  File "/home/python/.virtualenvs/django_py3_1.11/lib/python3.5/site-packages/pymysql/protocol.py", line 220, in check_error    err.raise_mysql_exception(self._data)  File "/home/python/.virtualenvs/django_py3_1.11/lib/python3.5/site-packages/pymysql/err.py", line 109, in raise_mysql_exception    raise errorclass(errno, errval)pymysql.err.IntegrityError: (1062, "Duplicate entry '' for key 'mobile'")
   

分析原因：

因为我们第一次创建管理员的时候，默认不设置手机号，但是我们创建模型类的时候加入了mobile这个字段，所以，当你第二次创建管理员的时候，两个空值的手机冲突了，因为你代码设置了一个手机号只能绑定一个账号，所以，在这里就报错了！

解决办法：

1：删除第一个管理员（不建议，有时候不切实际）

2：给第一个管理员账号加入手机号码

update tb_users set mobile = 'xxxxxxxxxxxx' where id = 1;

总结：就一小问题，稳住

 

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