Python框架之Django的数据库
在执行migrate的时候出现问题（错误见末尾）
django.db.utils.OperationalError: (1045, "Access denied for user ‘ODBC‘@‘localho
st‘ (using password: YES)")
：
Unhandled exception in thread started by <function check_errors.<locals>.wrapper at 0x031BD6F0> Traceback (most recent call last): File "C:Python36libsite-packagesdjangodbackendsasease.py", line 213 , in ensure_connection self.connect() File "C:Python36libsite-packagesdjangodbackendsasease.py", line 189 , in connect self.connection = self.get_new_connection(conn_params) File "C:Python36libsite-packagesdjangodbackendsmysqlase.py", line 27 4, in get_new_connection conn = Database.connect(**conn_params) File "C:Python36libsite-packagesMySQLdb\__init__.py", line 86, in Connect return Connection(*args, **kwargs) File "C:Python36libsite-packagesMySQLdbconnections.py", line 204, in __in it__ super(Connection, self).__init__(*args, **kwargs2) _mysql_exceptions.OperationalError: (1045, "Access denied for user ‘ODBC‘@‘local host‘ (using password: YES)") The above exception was the direct cause of the following exception: Traceback (most recent call last): File "C:Python36libsite-packagesdjangoutilsautoreload.py", line 227, in wrapper fn(*args, **kwargs) File "C:Python36libsite-packagesdjangocoremanagementcommands unserver. py", line 125, in inner_run self.check(display_num_errors=True) File "C:Python36libsite-packagesdjangocoremanagementase.py", line 359, in check include_deployment_checks=include_deployment_checks, File "C:Python36libsite-packagesdjangocoremanagementase.py", line 346, in _run_checks return checks.run_checks(**kwargs) File "C:Python36libsite-packagesdjangocorechecks egistry.py", line 81, in run_checks new_errors = check(app_configs=app_configs) File "C:Python36libsite-packagesdjangocorechecksmodel_checks.py", line 30, in check_all_models errors.extend(model.check(**kwargs)) File "C:Python36libsite-packagesdjangodbmodelsase.py", line 1282, in c heck errors.extend(cls._check_fields(**kwargs)) File "C:Python36libsite-packagesdjangodbmodelsase.py", line 1357, in _ check_fields errors.extend(field.check(**kwargs)) File "C:Python36libsite-packagesdjangodbmodelsfields\__init__.py", line 909, in check errors = super(AutoField, self).check(**kwargs) File "C:Python36libsite-packagesdjangodbmodelsfields\__init__.py", line 219, in check errors.extend(self._check_backend_specific_checks(**kwargs)) File "C:Python36libsite-packagesdjangodbmodelsfields\__init__.py", line 322, in _check_backend_specific_checks return connections[db].validation.check_field(self, **kwargs) File "C:Python36libsite-packagesdjangodbackendsmysqlvalidation.py", l ine 49, in check_field field_type = field.db_type(self.connection) File "C:Python36libsite-packagesdjangodbmodelsfields\__init__.py", line 640, in db_type return connection.data_types[self.get_internal_type()] % data File "C:Python36libsite-packagesdjangoutilsfunctional.py", line 35, in _ _get__ res = instance.__dict__[self.name] = self.func(instance) File "C:Python36libsite-packagesdjangodbackendsmysqlase.py", line 17 4, in data_types if self.features.supports_microsecond_precision: File "C:Python36libsite-packagesdjangoutilsfunctional.py", line 35, in _ _get__ res = instance.__dict__[self.name] = self.func(instance) File "C:Python36libsite-packagesdjangodbackendsmysqlfeatures.py", lin e 53, in supports_microsecond_precision return self.connection.mysql_version >= (5, 6, 4) and Database.version_info >= (1, 2, 5) File "C:Python36libsite-packagesdjangoutilsfunctional.py", line 35, in _ _get__ res = instance.__dict__[self.name] = self.func(instance) File "C:Python36libsite-packagesdjangodbackendsmysqlase.py", line 38 5, in mysql_version with self.temporary_connection() as cursor: File "C:Python36libcontextlib.py", line 82, in __enter__ return next(self.gen) File "C:Python36libsite-packagesdjangodbackendsasease.py", line 591 , in temporary_connection cursor = self.cursor() File "C:Python36libsite-packagesdjangodbackendsasease.py", line 254 , in cursor return self._cursor() File "C:Python36libsite-packagesdjangodbackendsasease.py", line 229 , in _cursor self.ensure_connection() File "C:Python36libsite-packagesdjangodbackendsasease.py", line 213 , in ensure_connection self.connect() File "C:Python36libsite-packagesdjangodbutils.py", line 94, in __exit__ six.reraise(dj_exc_type, dj_exc_value, traceback) File "C:Python36libsite-packagesdjangoutilssix.py", line 685, in reraise raise value.with_traceback(tb) File "C:Python36libsite-packagesdjangodbackendsasease.py", line 213 , in ensure_connection self.connect() File "C:Python36libsite-packagesdjangodbackendsasease.py", line 189 , in connect self.connection = self.get_new_connection(conn_params) File "C:Python36libsite-packagesdjangodbackendsmysqlase.py", line 27 4, in get_new_connection conn = Database.connect(**conn_params) File "C:Python36libsite-packagesMySQLdb\__init__.py", line 86, in Connect return Connection(*args, **kwargs) File "C:Python36libsite-packagesMySQLdbconnections.py", line 204, in __in it__ super(Connection, self).__init__(*args, **kwargs2) django.db.utils.OperationalError: (1045, "Access denied for user ‘ODBC‘@‘localho st‘ (using password: YES)")
这里很奇怪为什么我配置的用户是 admin_py 怎么会显示 ‘ODBC’@‘localhost’？
有人说是账号密码错误，通过报错看来的和账号密码错误相关，但是手工去登陆mysql是OK的啊！
折腾了一会儿，仔细看官方文档配置：
DATABASES = { ‘default‘: { ‘ENGINE‘: ‘django.db.backends.postgresql‘, ‘NAME‘: ‘mydatabase‘, ‘USER‘: ‘mydatabaseuser‘, ‘PASSWORD‘: ‘mypassword‘, ‘HOST‘: ‘127.0.0.1‘, ‘PORT‘: ‘5432‘, }}
我自己的配置：
DATABASES = { ‘default‘: { ‘ENGINE‘: ‘django.db.backends.mysql‘, ‘HOST‘: ‘127.0.0.1‘, ‘PORT‘: 3306, ‘NAME‘: ‘platform_admin_py‘, ‘USERNAME‘: ‘admin_py‘, ‘PASSWORD‘: ‘admin‘, } }
发现了没有？用户名的的那个KEY不对！ 我承认我这是从网上看别人的配置写的，偷懒了，这就是代价
本文出自 “影子骑士” 博客：http://andylhz2009.blog.51cto.com/728703/1923552