使用django mssql调用存储过程

我正在尝试调用一个多数据库项目中的存储过程。我有两个存储过程正在工作，但此特定存储过程不工作并返回错误：

Traceback (most recent call last):
File "d:\Projects\Django\AAAVirtualEnv\lib\site-packages\django\core\handlers\exception.py", line 39, in inner
response = get_response(request)
File "d:\Projects\Django\AAAVirtualEnv\lib\site-packages\django\core\handlers\base.py", line 187, in _get_response
response = self.process_exception_by_middleware(e, request)
File "d:\Projects\Django\AAAVirtualEnv\lib\site-packages\django\core\handlers\base.py", line 185, in _get_response
response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "d:\Projects\Django\AAAVirtualEnv\lib\site-packages\django\views\decorators\csrf.py", line 58, in wrapped_view
return view_func(*args, **kwargs)
File "d:\Projects\Django\AAAVirtualEnv\lib\site-packages\django\views\generic\base.py", line 68, in view
return self.dispatch(request, *args, **kwargs)
File "d:\Projects\Django\AAAVirtualEnv\lib\site-packages\rest_framework\views.py", line 483, in dispatch
response = self.handle_exception(exc)
File "d:\Projects\Django\AAAVirtualEnv\lib\site-packages\rest_framework\views.py", line 443, in handle_exception
self.raise_uncaught_exception(exc)
File "d:\Projects\Django\AAAVirtualEnv\lib\site-packages\rest_framework\views.py", line 480, in dispatch
response = handler(request, *args, **kwargs)
File "d:\Projects\Django\HRSys\hrs\hrs_api\views.py", line 79, in post
result_set = cursor.fetchall()
File "d:\Projects\Django\AAAVirtualEnv\lib\site-packages\django\db\utils.py", line 101, in inner
return func(*args, **kwargs)
File "d:\Projects\Django\AAAVirtualEnv\lib\site-packages\django\db\utils.py", line 94, in __exit__
six.reraise(dj_exc_type, dj_exc_value, traceback)
File "d:\Projects\Django\AAAVirtualEnv\lib\site-packages\django\utils\six.py", line 685, in reraise
raise value.with_traceback(tb)
File "d:\Projects\Django\AAAVirtualEnv\lib\site-packages\django\db\utils.py", line 101, in inner
return func(*args, **kwargs)
File "d:\Projects\Django\AAAVirtualEnv\lib\site-packages\sqlserver_ado\dbapi.py", line 719, in fetchall
return self._fetch()
File "d:\Projects\Django\AAAVirtualEnv\lib\site-packages\sqlserver_ado\dbapi.py", line 671, in _fetch
self._raiseCursorError(FetchFailedError, 'Attempting to fetch from a closed connection or empty record set')
File "d:\Projects\Django\AAAVirtualEnv\lib\site-packages\sqlserver_ado\dbapi.py", line 488, in _raiseCursorError
eh(self.connection, self, errorclass, errorvalue)
File "d:\Projects\Django\AAAVirtualEnv\lib\site-packages\sqlserver_ado\dbapi.py", line 103, in standardErrorHandler
raise errorclass(errorvalue)
django.db.utils.Error: Attempting to fetch from a closed connection or empty record set

这是我如何调用存储过程的：

cursor = connections['backend'].cursor()
    try:
        cursor.callproc('[dbo].[GetLogonControlJSON]', ['10011', 'encrypted', '127.0.0.1'])
        result_set = cursor.fetchall()
    finally:
        cursor.close()

我也这么做了，但还是得到了同样的错误：

cursor = connections['backend'].cursor()
try:
    cursor.execute('EXEC [dbo].[GetLogonControlJSON] @LogonID=%s, @Password=%s, @IP=%s' % ('10011', 'encrypted', '127.0.0.1'))
    result_set = cursor.fetchall()
finally:
    cursor.close()

请帮帮我。：）

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谢谢大家!

在这种情况下，应该使用

execute（）

方法，而不是

callproc（）

错误消息告诉您一切：

试图从关闭的连接或空记录集获取

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查看文档（第二个示例）：

感谢您的快速回复。我已经照你说的做了，但仍然是相同的错误。那么，应该检查一下连接是否仍然打开。此外，您可以检查返回的数据集是否存在问题—只要更改您的过程，使其在每次调用时至少返回一个元素即可。我非常确定我的存储过程正在工作。因为我在SSMS中测试了它，它工作得很好。那么连接['backend']呢？开门了吗？尝试使用ipdb一步一步地调试代码。