n exception has been raised that is likely due to a transient failure. If you are connecting to a SQL Azure database consider using SqlAzureExecutionStrateg

时间: 2024-03-27 16:35:49 浏览: 290
这个异常通常是由于与 Azure SQL 数据库的短暂连接故障导致的，你可以考虑使用 SqlAzureExecutionStrategy 来解决这个问题。 SqlAzureExecutionStrategy 是 Entity Framework 的一个执行策略，专门为 Azure SQL 数据库设计，它可以自动重试在发生短暂连接故障时失败的操作，以提高应用程序的可靠性和稳定性。 使用 SqlAzureExecutionStrategy 非常简单，只需在 DbContext 的配置选项中启用它即可。以下是一个使用 SqlAzureExecutionStrategy 的示例代码： ```csharp services.AddDbContext<MyDbContext>(options => { options.UseSqlServer(Configuration.GetConnectionString("MyDbConnection")) .UseSqlServerExecutionStrategy(x => x.ExecutionStrategy(SqlExecutionStrategyFactory)) }); private IExecutionStrategy SqlExecutionStrategyFactory(ExecutionStrategyDependencies dependencies) { return new SqlAzureExecutionStrategy(dependencies); } ``` 在上述示例中，我们在 DbContext 的配置选项中启用了 SqlAzureExecutionStrategy，并指定了一个 SqlExecutionStrategyFactory 方法，该方法返回一个 SqlAzureExecutionStrategy 实例。 通过使用 SqlAzureExecutionStrategy，你可以使你的应用程序更具有容错性和稳定性，能够更好地处理 Azure SQL 数据库的短暂连接故障。希望这个回答对你有所帮助！
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C:\Users\20685\AppData\Local\Programs\Python\Python310\python.exe D:\pythonProject_request\run.py ============================= test session starts ============================= platform win32 -- Python 3.10.11, pytest-8.3.5, pluggy-1.5.0 -- C:\Users\20685\AppData\Local\Programs\Python\Python310\python.exe cachedir: .pytest_cache metadata: {'Python': '3.10.11', 'Platform': 'Windows-10-10.0.26100-SP0', 'Packages': {'pytest': '8.3.5', 'pluggy': '1.5.0'}, 'Plugins': {'allure-pytest': '2.14.0', 'base-url': '2.1.0', 'html': '4.1.1', 'metadata': '3.1.1', 'order': '1.3.0', 'ordering': '0.6', 'rerunfailures': '15.1', 'xdist': '3.8.0'}, 'JAVA_HOME': 'C:\\Program Files\\Java\\jdk1.8.0_131', 'Base URL': ''} rootdir: D:\pythonProject_request configfile: pytest.ini plugins: allure-pytest-2.14.0, base-url-2.1.0, html-4.1.1, metadata-3.1.1, order-1.3.0, ordering-0.6, rerunfailures-15.1, xdist-3.8.0 collecting ... collected 1 item testcaes/test_all_case.py::TestAllCase::test_login[caseinfo0] FAILED ================================== FAILURES =================================== ______________________ TestAllCase.test_login[caseinfo0] ______________________ self = <urllib3.connectionpool.HTTPSConnectionPool object at 0x000002DA1B54E380> conn = <urllib3.connection.HTTPSConnection object at 0x000002DA1B54E980> method = 'POST' url = '/adminapi/login?Content_Type=application%2Fx-www-from-urlencoded' body = 'account=admin&pwd=123456&imgcode=' headers = {'User-Agent': 'python-requests/2.32.3', 'Accept-Encoding': 'gzip, deflate', 'Accept': '*/*', 'Connection': 'keep-alive', 'Content-Length': '33', 'Content-Type': 'application/x-www-form-urlencoded'} retries = Retry(total=0, connect=None, read=False, redirect=None, status=None) timeout = Timeout(connect=None, read=None, total=None), chunked = False response_conn = <urllib3.connection.HTTPSConnection object at 0x000002DA1B54E980> preload_content = False, decode_content = False, enforce_content_length = True def _make_request( self, conn: BaseHTTPConnection, method: str, url: str, body: _TYPE_BODY | None = None, headers: typing.Mapping[str, str] | None = None, retries: Retry | None = None, timeout: _TYPE_TIMEOUT = _DEFAULT_TIMEOUT, chunked: bool = False, response_conn: BaseHTTPConnection | None = None, preload_content: bool = True, decode_content: bool = True, enforce_content_length: bool = True, ) -> BaseHTTPResponse: """ Perform a request on a given urllib connection object taken from our pool. :param conn: a connection from one of our connection pools :param method: HTTP request method (such as GET, POST, PUT, etc.) :param url: The URL to perform the request on. :param body: Data to send in the request body, either :class:str, :class:bytes, an iterable of :class:str/:class:bytes, or a file-like object. :param headers: Dictionary of custom headers to send, such as User-Agent, If-None-Match, etc. If None, pool headers are used. If provided, these headers completely replace any pool-specific headers. :param retries: Configure the number of retries to allow before raising a :class:~urllib3.exceptions.MaxRetryError exception. Pass None to retry until you receive a response. Pass a :class:~urllib3.util.retry.Retry object for fine-grained control over different types of retries. Pass an integer number to retry connection errors that many times, but no other types of errors. Pass zero to never retry. If False, then retries are disabled and any exception is raised immediately. Also, instead of raising a MaxRetryError on redirects, the redirect response will be returned. :type retries: :class:~urllib3.util.retry.Retry, False, or an int. :param timeout: If specified, overrides the default timeout for this one request. It may be a float (in seconds) or an instance of :class:urllib3.util.Timeout. :param chunked: If True, urllib3 will send the body using chunked transfer encoding. Otherwise, urllib3 will send the body using the standard content-length form. Defaults to False. :param response_conn: Set this to None if you will handle releasing the connection or set the connection to have the response release it. :param preload_content: If True, the response's body will be preloaded during construction. :param decode_content: If True, will attempt to decode the body based on the 'content-encoding' header. :param enforce_content_length: Enforce content length checking. Body returned by server must match value of Content-Length header, if present. Otherwise, raise error. """ self.num_requests += 1 timeout_obj = self._get_timeout(timeout) timeout_obj.start_connect() conn.timeout = Timeout.resolve_default_timeout(timeout_obj.connect_timeout) try: # Trigger any extra validation we need to do. try: > self._validate_conn(conn) C:\Users\20685\AppData\Local\Programs\Python\Python310\lib\site-packages\urllib3\connectionpool.py:468: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ C:\Users\20685\AppData\Local\Programs\Python\Python310\lib\site-packages\urllib3\connectionpool.py:1097: in _validate_conn conn.connect() C:\Users\20685\AppData\Local\Programs\Python\Python310\lib\site-packages\urllib3\connection.py:642: in connect sock_and_verified = _ssl_wrap_socket_and_match_hostname( C:\Users\20685\AppData\Local\Programs\Python\Python310\lib\site-packages\urllib3\connection.py:783: in _ssl_wrap_socket_and_match_hostname ssl_sock = ssl_wrap_socket( C:\Users\20685\AppData\Local\Programs\Python\Python310\lib\site-packages\urllib3\util\ssl_.py:471: in ssl_wrap_socket ssl_sock = _ssl_wrap_socket_impl(sock, context, tls_in_tls, server_hostname) C:\Users\20685\AppData\Local\Programs\Python\Python310\lib\site-packages\urllib3\util\ssl_.py:515: in _ssl_wrap_socket_impl return ssl_context.wrap_socket(sock, server_hostname=server_hostname) C:\Users\20685\AppData\Local\Programs\Python\Python310\lib\ssl.py:513: in wrap_socket return self.sslsocket_class._create( C:\Users\20685\AppData\Local\Programs\Python\Python310\lib\ssl.py:1071: in _create self.do_handshake() _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ self = <ssl.SSLSocket [closed] fd=-1, family=AddressFamily.AF_INET, type=SocketKind.SOCK_STREAM, proto=0> block = False @_sslcopydoc def do_handshake(self, block=False): self._check_connected() timeout = self.gettimeout() try: if timeout == 0.0 and block: self.settimeout(None) > self._sslobj.do_handshake() E ssl.SSLCertVerificationError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:1007) C:\Users\20685\AppData\Local\Programs\Python\Python310\lib\ssl.py:1342: SSLCertVerificationError During handling of the above exception, another exception occurred: self = <urllib3.connectionpool.HTTPSConnectionPool object at 0x000002DA1B54E380> method = 'POST' url = '/adminapi/login?Content_Type=application%2Fx-www-from-urlencoded' body = 'account=admin&pwd=123456&imgcode=' headers = {'User-Agent': 'python-requests/2.32.3', 'Accept-Encoding': 'gzip, deflate', 'Accept': '*/*', 'Connection': 'keep-alive', 'Content-Length': '33', 'Content-Type': 'application/x-www-form-urlencoded'} retries = Retry(total=0, connect=None, read=False, redirect=None, status=None) redirect = False, assert_same_host = False timeout = Timeout(connect=None, read=None, total=None), pool_timeout = None release_conn = False, chunked = False, body_pos = None, preload_content = False decode_content = False, response_kw = {} parsed_url = Url(scheme=None, auth=None, host=None, port=None, path='/adminapi/login', query='Content_Type=application%2Fx-www-from-urlencoded', fragment=None) destination_scheme = None, conn = None, release_this_conn = True http_tunnel_required = False, err = None, clean_exit = False def urlopen( # type: ignore[override] self, method: str, url: str, body: _TYPE_BODY | None = None, headers: typing.Mapping[str, str] | None = None, retries: Retry | bool | int | None = None, redirect: bool = True, assert_same_host: bool = True, timeout: _TYPE_TIMEOUT = _DEFAULT_TIMEOUT, pool_timeout: int | None = None, release_conn: bool | None = None, chunked: bool = False, body_pos: _TYPE_BODY_POSITION | None = None, preload_content: bool = True, decode_content: bool = True, **response_kw: typing.Any, ) -> BaseHTTPResponse: """ Get a connection from the pool and perform an HTTP request. This is the lowest level call for making a request, so you'll need to specify all the raw details. .. note:: More commonly, it's appropriate to use a convenience method such as :meth:request. .. note:: release_conn will only behave as expected if preload_content=False because we want to make preload_content=False the default behaviour someday soon without breaking backwards compatibility. :param method: HTTP request method (such as GET, POST, PUT, etc.) :param url: The URL to perform the request on. :param body: Data to send in the request body, either :class:str, :class:bytes, an iterable of :class:str/:class:bytes, or a file-like object. :param headers: Dictionary of custom headers to send, such as User-Agent, If-None-Match, etc. If None, pool headers are used. If provided, these headers completely replace any pool-specific headers. :param retries: Configure the number of retries to allow before raising a :class:~urllib3.exceptions.MaxRetryError exception. Pass None to retry until you receive a response. Pass a :class:~urllib3.util.retry.Retry object for fine-grained control over different types of retries. Pass an integer number to retry connection errors that many times, but no other types of errors. Pass zero to never retry. If False, then retries are disabled and any exception is raised immediately. Also, instead of raising a MaxRetryError on redirects, the redirect response will be returned. :type retries: :class:~urllib3.util.retry.Retry, False, or an int. :param redirect: If True, automatically handle redirects (status codes 301, 302, 303, 307, 308). Each redirect counts as a retry. Disabling retries will disable redirect, too. :param assert_same_host: If True, will make sure that the host of the pool requests is consistent else will raise HostChangedError. When False, you can use the pool on an HTTP proxy and request foreign hosts. :param timeout: If specified, overrides the default timeout for this one request. It may be a float (in seconds) or an instance of :class:urllib3.util.Timeout. :param pool_timeout: If set and the pool is set to block=True, then this method will block for pool_timeout seconds and raise EmptyPoolError if no connection is available within the time period. :param bool preload_content: If True, the response's body will be preloaded into memory. :param bool decode_content: If True, will attempt to decode the body based on the 'content-encoding' header. :param release_conn: If False, then the urlopen call will not release the connection back into the pool once a response is received (but will release if you read the entire contents of the response such as when preload_content=True). This is useful if you're not preloading the response's content immediately. You will need to call r.release_conn() on the response r to return the connection back into the pool. If None, it takes the value of preload_content which defaults to True. :param bool chunked: If True, urllib3 will send the body using chunked transfer encoding. Otherwise, urllib3 will send the body using the standard content-length form. Defaults to False. :param int body_pos: Position to seek to in file-like body in the event of a retry or redirect. Typically this won't need to be set because urllib3 will auto-populate the value when needed. """ parsed_url = parse_url(url) destination_scheme = parsed_url.scheme if headers is None: headers = self.headers if not isinstance(retries, Retry): retries = Retry.from_int(retries, redirect=redirect, default=self.retries) if release_conn is None: release_conn = preload_content # Check host if assert_same_host and not self.is_same_host(url): raise HostChangedError(self, url, retries) # Ensure that the URL we're connecting to is properly encoded if url.startswith("/"): url = to_str(_encode_target(url)) else: url = to_str(parsed_url.url) conn = None # Track whether conn needs to be released before # returning/raising/recursing. Update this variable if necessary, and # leave release_conn constant throughout the function. That way, if # the function recurses, the original value of release_conn will be # passed down into the recursive call, and its value will be respected. # # See issue #651 [1] for details. # # [1] <https://github.com/urllib3/urllib3/issues/651> release_this_conn = release_conn http_tunnel_required = connection_requires_http_tunnel( self.proxy, self.proxy_config, destination_scheme ) # Merge the proxy headers. Only done when not using HTTP CONNECT. We # have to copy the headers dict so we can safely change it without those # changes being reflected in anyone else's copy. if not http_tunnel_required: headers = headers.copy() # type: ignore[attr-defined] headers.update(self.proxy_headers) # type: ignore[union-attr] # Must keep the exception bound to a separate variable or else Python 3 # complains about UnboundLocalError. err = None # Keep track of whether we cleanly exited the except block. This # ensures we do proper cleanup in finally. clean_exit = False # Rewind body position, if needed. Record current position # for future rewinds in the event of a redirect/retry. body_pos = set_file_position(body, body_pos) try: # Request a connection from the queue. timeout_obj = self._get_timeout(timeout) conn = self._get_conn(timeout=pool_timeout) conn.timeout = timeout_obj.connect_timeout # type: ignore[assignment] # Is this a closed/new connection that requires CONNECT tunnelling? if self.proxy is not None and http_tunnel_required and conn.is_closed: try: self._prepare_proxy(conn) except (BaseSSLError, OSError, SocketTimeout) as e: self._raise_timeout( err=e, url=self.proxy.url, timeout_value=conn.timeout ) raise # If we're going to release the connection in finally:, then # the response doesn't need to know about the connection. Otherwise # it will also try to release it and we'll have a double-release # mess. response_conn = conn if not release_conn else None # Make the request on the HTTPConnection object > response = self._make_request( conn, method, url, timeout=timeout_obj, body=body, headers=headers, chunked=chunked, retries=retries, response_conn=response_conn, preload_content=preload_content, decode_content=decode_content, **response_kw, ) C:\Users\20685\AppData\Local\Programs\Python\Python310\lib\site-packages\urllib3\connectionpool.py:791: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ self = <urllib3.connectionpool.HTTPSConnectionPool object at 0x000002DA1B54E380> conn = <urllib3.connection.HTTPSConnection object at 0x000002DA1B54E980> method = 'POST' url = '/adminapi/login?Content_Type=application%2Fx-www-from-urlencoded' body = 'account=admin&pwd=123456&imgcode=' headers = {'User-Agent': 'python-requests/2.32.3', 'Accept-Encoding': 'gzip, deflate', 'Accept': '*/*', 'Connection': 'keep-alive', 'Content-Length': '33', 'Content-Type': 'application/x-www-form-urlencoded'} retries = Retry(total=0, connect=None, read=False, redirect=None, status=None) timeout = Timeout(connect=None, read=None, total=None), chunked = False response_conn = <urllib3.connection.HTTPSConnection object at 0x000002DA1B54E980> preload_content = False, decode_content = False, enforce_content_length = True def _make_request( self, conn: BaseHTTPConnection, method: str, url: str, body: _TYPE_BODY | None = None, headers: typing.Mapping[str, str] | None = None, retries: Retry | None = None, timeout: _TYPE_TIMEOUT = _DEFAULT_TIMEOUT, chunked: bool = False, response_conn: BaseHTTPConnection | None = None, preload_content: bool = True, decode_content: bool = True, enforce_content_length: bool = True, ) -> BaseHTTPResponse: """ Perform a request on a given urllib connection object taken from our pool. :param conn: a connection from one of our connection pools :param method: HTTP request method (such as GET, POST, PUT, etc.) :param url: The URL to perform the request on. :param body: Data to send in the request body, either :class:str, :class:bytes, an iterable of :class:str/:class:bytes, or a file-like object. :param headers: Dictionary of custom headers to send, such as User-Agent, If-None-Match, etc. If None, pool headers are used. If provided, these headers completely replace any pool-specific headers. :param retries: Configure the number of retries to allow before raising a :class:~urllib3.exceptions.MaxRetryError exception. Pass None to retry until you receive a response. Pass a :class:~urllib3.util.retry.Retry object for fine-grained control over different types of retries. Pass an integer number to retry connection errors that many times, but no other types of errors. Pass zero to never retry. If False, then retries are disabled and any exception is raised immediately. Also, instead of raising a MaxRetryError on redirects, the redirect response will be returned. :type retries: :class:~urllib3.util.retry.Retry, False, or an int. :param timeout: If specified, overrides the default timeout for this one request. It may be a float (in seconds) or an instance of :class:urllib3.util.Timeout. :param chunked: If True, urllib3 will send the body using chunked transfer encoding. Otherwise, urllib3 will send the body using the standard content-length form. Defaults to False. :param response_conn: Set this to None if you will handle releasing the connection or set the connection to have the response release it. :param preload_content: If True, the response's body will be preloaded during construction. :param decode_content: If True, will attempt to decode the body based on the 'content-encoding' header. :param enforce_content_length: Enforce content length checking. Body returned by server must match value of Content-Length header, if present. Otherwise, raise error. """ self.num_requests += 1 timeout_obj = self._get_timeout(timeout) timeout_obj.start_connect() conn.timeout = Timeout.resolve_default_timeout(timeout_obj.connect_timeout) try: # Trigger any extra validation we need to do. try: self._validate_conn(conn) except (SocketTimeout, BaseSSLError) as e: self._raise_timeout(err=e, url=url, timeout_value=conn.timeout) raise # _validate_conn() starts the connection to an HTTPS proxy # so we need to wrap errors with 'ProxyError' here too. except ( OSError, NewConnectionError, TimeoutError, BaseSSLError, CertificateError, SSLError, ) as e: new_e: Exception = e if isinstance(e, (BaseSSLError, CertificateError)): new_e = SSLError(e) # If the connection didn't successfully connect to it's proxy # then there if isinstance( new_e, (OSError, NewConnectionError, TimeoutError, SSLError) ) and (conn and conn.proxy and not conn.has_connected_to_proxy): new_e = _wrap_proxy_error(new_e, conn.proxy.scheme) > raise new_e E urllib3.exceptions.SSLError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:1007) C:\Users\20685\AppData\Local\Programs\Python\Python310\lib\site-packages\urllib3\connectionpool.py:492: SSLError The above exception was the direct cause of the following exception: self = <requests.adapters.HTTPAdapter object at 0x000002DA1B51A710> request = , stream = False timeout = Timeout(connect=None, read=None, total=None), verify = True cert = None, proxies = OrderedDict() def send( self, request, stream=False, timeout=None, verify=True, cert=None, proxies=None ): """Sends PreparedRequest object. Returns Response object. :param request: The :class:PreparedRequest being sent. :param stream: (optional) Whether to stream the request content. :param timeout: (optional) How long to wait for the server to send data before giving up, as a float, or a :ref:(connect timeout, read timeout) <timeouts> tuple. :type timeout: float or tuple or urllib3 Timeout object :param verify: (optional) Either a boolean, in which case it controls whether we verify the server's TLS certificate, or a string, in which case it must be a path to a CA bundle to use :param cert: (optional) Any user-provided SSL certificate to be trusted. :param proxies: (optional) The proxies dictionary to apply to the request. :rtype: requests.Response """ try: conn = self.get_connection_with_tls_context( request, verify, proxies=proxies, cert=cert ) except LocationValueError as e: raise InvalidURL(e, request=request) self.cert_verify(conn, request.url, verify, cert) url = self.request_url(request, proxies) self.add_headers( request, stream=stream, timeout=timeout, verify=verify, cert=cert, proxies=proxies, ) chunked = not (request.body is None or "Content-Length" in request.headers) if isinstance(timeout, tuple): try: connect, read = timeout timeout = TimeoutSauce(connect=connect, read=read) except ValueError: raise ValueError( f"Invalid timeout {timeout}. Pass a (connect, read) timeout tuple, " f"or a single float to set both timeouts to the same value." ) elif isinstance(timeout, TimeoutSauce): pass else: timeout = TimeoutSauce(connect=timeout, read=timeout) try: > resp = conn.urlopen( method=request.method, url=url, body=request.body, headers=request.headers, redirect=False, assert_same_host=False, preload_content=False, decode_content=False, retries=self.max_retries, timeout=timeout, chunked=chunked, ) C:\Users\20685\AppData\Local\Programs\Python\Python310\lib\site-packages\requests\adapters.py:667: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ C:\Users\20685\AppData\Local\Programs\Python\Python310\lib\site-packages\urllib3\connectionpool.py:845: in urlopen retries = retries.increment( _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ self = Retry(total=0, connect=None, read=False, redirect=None, status=None) method = 'POST' url = '/adminapi/login?Content_Type=application%2Fx-www-from-urlencoded' response = None error = SSLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:1007)')) _pool = <urllib3.connectionpool.HTTPSConnectionPool object at 0x000002DA1B54E380> _stacktrace = <traceback object at 0x000002DA1B279980> def increment( self, method: str | None = None, url: str | None = None, response: BaseHTTPResponse | None = None, error: Exception | None = None, _pool: ConnectionPool | None = None, _stacktrace: TracebackType | None = None, ) -> Retry: """Return a new Retry object with incremented retry counters. :param response: A response object, or None, if the server did not return a response. :type response: :class:~urllib3.response.BaseHTTPResponse :param Exception error: An error encountered during the request, or None if the response was received successfully. :return: A new Retry object. """ if self.total is False and error: # Disabled, indicate to re-raise the error. raise reraise(type(error), error, _stacktrace) total = self.total if total is not None: total -= 1 connect = self.connect read = self.read redirect = self.redirect status_count = self.status other = self.other cause = "unknown" status = None redirect_location = None if error and self._is_connection_error(error): # Connect retry? if connect is False: raise reraise(type(error), error, _stacktrace) elif connect is not None: connect -= 1 elif error and self._is_read_error(error): # Read retry? if read is False or method is None or not self._is_method_retryable(method): raise reraise(type(error), error, _stacktrace) elif read is not None: read -= 1 elif error: # Other retry? if other is not None: other -= 1 elif response and response.get_redirect_location(): # Redirect retry? if redirect is not None: redirect -= 1 cause = "too many redirects" response_redirect_location = response.get_redirect_location() if response_redirect_location: redirect_location = response_redirect_location status = response.status else: # Incrementing because of a server error like a 500 in # status_forcelist and the given method is in the allowed_methods cause = ResponseError.GENERIC_ERROR if response and response.status: if status_count is not None: status_count -= 1 cause = ResponseError.SPECIFIC_ERROR.format(status_code=response.status) status = response.status history = self.history + ( RequestHistory(method, url, error, status, redirect_location), ) new_retry = self.new( total=total, connect=connect, read=read, redirect=redirect, status=status_count, other=other, history=history, ) if new_retry.is_exhausted(): reason = error or ResponseError(cause) > raise MaxRetryError(_pool, url, reason) from reason # type: ignore[arg-type] E urllib3.exceptions.MaxRetryError: HTTPSConnectionPool(host='192.168.116.137', port=443): Max retries exceeded with url: /adminapi/login?Content_Type=application%2Fx-www-from-urlencoded (Caused by SSLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:1007)'))) C:\Users\20685\AppData\Local\Programs\Python\Python310\lib\site-packages\urllib3\util\retry.py:515: MaxRetryError During handling of the above exception, another exception occurred: self = <testcaes.test_all_case.TestAllCase object at 0x000002DA1B54E1D0> caseinfo = {'request': {'data': {'account': 'admin', 'imgcode': '', 'pwd': 123456}, 'method': 'post', 'params': {'Content_Type': 'application/x-www-from-urlencoded'}, 'url': 'https://192.168.116.137/adminapi/login'}, 'validate': None, 'verify': False} @pytest.mark.parametrize("caseinfo",read_yaml(yaml_path)) def duyo(self,caseinfo): new_caseinfo = verify_yaml(caseinfo) #在读取yaml内容后调取用例模板方法验证用例是否足够 #发送请求 > RequestUtil().send_all_request(**new_caseinfo.request) testcaes\test_all_case.py:17: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ common\requests_util.py:27: in send_all_request res = RequestUtil.sess.request(**kwargs) C:\Users\20685\AppData\Local\Programs\Python\Python310\lib\site-packages\requests\sessions.py:589: in request resp = self.send(prep, **send_kwargs) C:\Users\20685\AppData\Local\Programs\Python\Python310\lib\site-packages\requests\sessions.py:703: in send r = adapter.send(request, **kwargs) _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ self = <requests.adapters.HTTPAdapter object at 0x000002DA1B51A710> request = , stream = False timeout = Timeout(connect=None, read=None, total=None), verify = True cert = None, proxies = OrderedDict() def send( self, request, stream=False, timeout=None, verify=True, cert=None, proxies=None ): """Sends PreparedRequest object. Returns Response object. :param request: The :class:PreparedRequest being sent. :param stream: (optional) Whether to stream the request content. :param timeout: (optional) How long to wait for the server to send data before giving up, as a float, or a :ref:(connect timeout, read timeout) <timeouts> tuple. :type timeout: float or tuple or urllib3 Timeout object :param verify: (optional) Either a boolean, in which case it controls whether we verify the server's TLS certificate, or a string, in which case it must be a path to a CA bundle to use :param cert: (optional) Any user-provided SSL certificate to be trusted. :param proxies: (optional) The proxies dictionary to apply to the request. :rtype: requests.Response """ try: conn = self.get_connection_with_tls_context( request, verify, proxies=proxies, cert=cert ) except LocationValueError as e: raise InvalidURL(e, request=request) self.cert_verify(conn, request.url, verify, cert) url = self.request_url(request, proxies) self.add_headers( request, stream=stream, timeout=timeout, verify=verify, cert=cert, proxies=proxies, ) chunked = not (request.body is None or "Content-Length" in request.headers) if isinstance(timeout, tuple): try: connect, read = timeout timeout = TimeoutSauce(connect=connect, read=read) except ValueError: raise ValueError( f"Invalid timeout {timeout}. Pass a (connect, read) timeout tuple, " f"or a single float to set both timeouts to the same value." ) elif isinstance(timeout, TimeoutSauce): pass else: timeout = TimeoutSauce(connect=timeout, read=timeout) try: resp = conn.urlopen( method=request.method, url=url, body=request.body, headers=request.headers, redirect=False, assert_same_host=False, preload_content=False, decode_content=False, retries=self.max_retries, timeout=timeout, chunked=chunked, ) except (ProtocolError, OSError) as err: raise ConnectionError(err, request=request) except MaxRetryError as e: if isinstance(e.reason, ConnectTimeoutError): # TODO: Remove this in 3.0.0: see #2811 if not isinstance(e.reason, NewConnectionError): raise ConnectTimeout(e, request=request) if isinstance(e.reason, ResponseError): raise RetryError(e, request=request) if isinstance(e.reason, _ProxyError): raise ProxyError(e, request=request) if isinstance(e.reason, _SSLError): # This branch is for urllib3 v1.22 and later. > raise SSLError(e, request=request) E requests.exceptions.SSLError: HTTPSConnectionPool(host='192.168.116.137', port=443): Max retries exceeded with url: /adminapi/login?Content_Type=application%2Fx-www-from-urlencoded (Caused by SSLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:1007)'))) C:\Users\20685\AppData\Local\Programs\Python\Python310\lib\site-packages\requests\adapters.py:698: SSLError ============================== warnings summary =============================== C:\Users\20685\AppData\Local\Programs\Python\Python310\lib\site-packages\_pytest\config\__init__.py:1277 C:\Users\20685\AppData\Local\Programs\Python\Python310\lib\site-packages\_pytest\config\__init__.py:1277: PytestAssertRewriteWarning: Module already imported so cannot be rewritten: allure_pytest self._mark_plugins_for_rewrite(hook) C:\Users\20685\AppData\Local\Programs\Python\Python310\lib\site-packages\_pytest\config\__init__.py:1500 C:\Users\20685\AppData\Local\Programs\Python\Python310\lib\site-packages\_pytest\config\__init__.py:1500: PytestConfigWarning: No files were found in testpaths; consider removing or adjusting your testpaths configuration. Searching recursively from the current directory instead. self.args, self.args_source = self._decide_args( C:\Users\20685\AppData\Local\Programs\Python\Python310\lib\site-packages\_pytest\config\__init__.py:1441 C:\Users\20685\AppData\Local\Programs\Python\Python310\lib\site-packages\_pytest\config\__init__.py:1441: PytestConfigWarning: Unknown config option: Python_classes self._warn_or_fail_if_strict(f"Unknown config option: {key}\n") -- Docs: https://docs.pytest.org/en/stable/how-to/capture-warnings.html =========================== short test summary info =========================== FAILED testcaes/test_all_case.py::TestAllCase::test_login[caseinfo0] - reques... ======================== 1 failed, 3 warnings in 0.25s ======================== 进程已结束，退出代码为 0

SSLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:1007)')) 根据引用[1][3]，这个错误通常是因为： 1. ...

sqlalchemy.exc.StatementError: (raised as a result of Query-invoked autoflush; consider using a session.no_autoflush block if this flush is occurring prematurely) (builtins.TypeError) string argument without an encoding [SQL: UPDATE books SET img=%(img)s WHERE books.id = %(books_id)s] [parameters: [{'img': ....]] 这是什么问题？

看一下SQL语句：UPDATE books SET img=%(img)s。参数中的img值可能是一个字符串，而数据库期望的是二进制数据。比如，用户可能从某个源读取图片数据，得到的是字符串，而不是用二进制模式读取的字节。例如，用open...

The DSPR memory of the TC1.6.2P is protected from memory integrity errors on a per half-word basis. ECC protection of the DSPR is enabled via the SSH ECCS register. For data load requests from the TriCore CPU to DSPR, the ECC bits are read along with the data bits and an uncorrectable error signal is generated for each half-word. If an error is detected associated with any of the data half-words passed to the CPU an error is flagged to the CPU. If such an error condition is detected an asynchronous DIE trap is raised. The trap handler is then responsible for correcting the memory entry, or for taking alternative action (such as system soft reset) if correction of the data is not possible. For DSPR read operations from the Bus interface, either from the PMI module or another Bus master agent, an access that results in the detection of an uncorrectable error in the requested data half-words causes an error to be returned for the bus transaction. Since the TriCore CPU may not be involved in the transaction, a separate error is also flagged to the SMU module to optionally generate an NMI trap back to the CPU. For write operations to DSPR of half-word size or greater, the ECC bits are pre-calculated and written to the memory in parallel with the data bits. For byte write operations the memory transaction is transformed into a half-word read-modify-write sequence inside the DMI module. As such, byte write operations may result in the detection of uncorrectable memory integrity errors, which are handled as per standard read operations. 翻译成中文，且帮我理解一下

if (bus_read(DSPR_address) & ECC_ERROR_FLAG) { set_transaction_error(); // 设置总线错误 smu_trigger_nmi(); // 通知SMU模块 } #### **4. 写入操作策略** | 写入类型 | 处理方式 | ECC生成时机 | ...

Java 使用 Jasypt 加密时报错 Encryption raised an exception. A possible cause is you are using strong encryption algorithms and you have not installed the Java Cryptography Extension (JCE) Unlimited Strength Jurisdiction Policy Files in this Java Virtual Machine

- 错误信息明确提示：A possible cause is you are using strong encryption algorithms and you have not installed the Java Cryptography Extension (JCE) Unlimited Strength Jurisdiction Policy Files[^2][^...

def getattr(object, name, default=None): # known special case of getattr """ getattr(object, name[, default]) -> value Get a named attribute from an object; getattr(x, 'y') is equivalent to x.y. When a default argument is given, it is returned when the attribute doesn't exist; without it, an exception is raised in that case.

这是 Python 内置函数 getattr() 的说明文档。 getattr() 函数用于获取对象的属性值，如果对象没有该属性，则根据传入的参数决定是抛出异常还是返回默认值。其中，object 参数为要获取属性值的对象，name ...

2025-03-23 23:17:14.231 WARN 30304 --- [tContainer#0-16] o.s.a.r.l.SimpleMessageListenerContainer : Consumer raised exception, processing can restart if the connection factory supports it. Exception summary: org.springframework.amqp.AmqpConnectException: java.net.ConnectException: Connection timed out: getsockopt 2025-03-23 23:17:14.231 INFO 30304 --- [tContainer#0-16] o.s.a.r.l.SimpleMessageListenerContainer : Restarting Consumer@6193ec97: tags=[[]], channel=null, acknowledgeMode=AUTO local queue size=0 2025-03-23 23:17:14.233 INFO 30304 --- [tContainer#0-17] o.s.a.r.c.CachingConnectionFactory : Attempting to connect to: [192.168.124.89:5673] 2025-03-23 23:17:35.263 ERROR 30304 --- [tContainer#0-17] o.s.a.r.l.SimpleMessageListenerContainer : Failed to check/redeclare auto-delete queue(s). 2025-03-23 23:17:35.263 INFO 30304 --- [tContainer#0-17] o.s.a.r.c.CachingConnectionFactory : Attempting to connect to: [192.168.124.89:5673] 2025-03-23 23:18:01.442 WARN 30304 --- [tContainer#0-17] o.s.a.r.l.SimpleMessageListenerContainer : Consumer raised exception, processing can restart if the connection factory supports it. Exception summary: org.springframework.amqp.AmqpConnectException: java.net.ConnectException: Connection timed out: getsockopt 2025-03-23 23:18:01.442 INFO 30304 --- [tContainer#0-17] o.s.a.r.l.SimpleMessageListenerContainer : Restarting Consumer@4b422927: tags=[[]], channel=null, acknowledgeMode=AUTO local queue size=0 2025-03-23 23:18:01.444 INFO 30304 --- [tContainer#0-18] o.s.a.r.c.CachingConnectionFactory : Attempting to connect to: [192.168.124.89:5673]

从日志信息来看，您的应用程序正在尝试通过 RabbitMQ 消息队列服务进行通信，并遇到了连接超时的问题。以下是关于这个问题的具体分析以及解决方案建议： ### 日志内容解析 1. **WARN 和 ERROR 级别的错误** ...

/** * @brief Receive an amount of data in DMA mode till either the expected number of data is received or an IDLE event occurs. * @note Reception is initiated by this function call. Further progress of reception is achieved thanks * to DMA services, transferring automatically received data elements in user reception buffer and * calling registered callbacks at half/end of reception. UART IDLE events are also used to consider * reception phase as ended. In all cases, callback execution will indicate number of received data elements. * @note When the UART parity is enabled (PCE = 1), the received data contain * the parity bit (MSB position). * @note When UART parity is not enabled (PCE = 0), and Word Length is configured to 9 bits (M = 01), * the received data is handled as a set of uint16_t. In this case, Size must indicate the number * of uint16_t available through pData. * @param huart UART handle. * @param pData Pointer to data buffer (uint8_t or uint16_t data elements). * @param Size Amount of data elements (uint8_t or uint16_t) to be received. * @retval HAL status */ HAL_StatusTypeDef HAL_UARTEx_ReceiveToIdle_DMA(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size) { HAL_StatusTypeDef status; /* Check that a Rx process is not already ongoing */ if (huart->RxState == HAL_UART_STATE_READY) { if ((pData == NULL) || (Size == 0U)) { return HAL_ERROR; } __HAL_LOCK(huart); /* Set Reception type to reception till IDLE Event*/ huart->ReceptionType = HAL_UART_RECEPTION_TOIDLE; status = UART_Start_Receive_DMA(huart, pData, Size); /* Check Rx process has been successfully started */ if (status == HAL_OK) { if (huart->ReceptionType == HAL_UART_RECEPTION_TOIDLE) { __HAL_UART_CLEAR_IDLEFLAG(huart); ATOMIC_SET_BIT(huart->Instance->CR1, USART_CR1_IDLEIE); } else { /* In case of errors already pending when reception is started, Interrupts may have already been raised and lead to reception abortion. (Overrun error for instance). In such case Reception Type has been reset to HAL_UART_RECEPTION_STANDARD. */ status = HAL_ERROR; } } return status; } else { return HAL_BUSY; } }翻译一下，什么时候会halbusy，我发现我的串口初始化的时候这里变成halbusy了

嗯，用户的问题是关于HAL_UARTEx_ReceiveToIdle_DMA函数返回HAL_BUSY的情况，特别是在初始化串口时遇到了这个问题。我需要先仔细分析这个函数的代码，理解它的执行流程，然后找出可能导致HAL_BUSY的原因。...

D:\ANACONDA\lib\site-packages\sklearn\datasets\_openml.py:932: FutureWarning: The default value of parser will change from 'liac-arff' to 'auto' in 1.4. You can set parser='auto' to silence this warning. Therefore, an ImportError will be raised from 1.4 if the dataset is dense and pandas is not installed. Note that the pandas parser may return different data types. See the Notes Section in fetch_openml's API doc for details.

If you are still having trouble loading the Boston dataset, please provide the specific error message so that I can help you further. I apologize for any inconvenience caused, and I'm here to assist...

TypeError: Keras symbolic inputs/outputs do not implement __len__. You may be trying to pass Keras symbolic inputs/outputs to a TF API that does not register dispatching, preventing Keras from automatically converting the API call to a lambda layer in the Functional Model. This error will also get raised if you try asserting a symbolic input/output directly.

这个错误通常是因为您正在尝试将 Keras 的符号输入/输出传递给一个 TensorFlow API，但该 API 没有注册调度程序，从而阻止 Keras 自动将 API 调用转换为函数模型中的 Lambda 层。这可能是由于多个原因引起的，例如您...

FutureWarning: Could not cast to float64, falling back to object. This behavior is deprecated. In a future version, when a dtype is passed to 'DataFrame', either all columns will be cast to that dtype, or a TypeError will be raised. assets_df = pd.DataFrame(account_info['assets'], dtype=float)

这个警告是因为在创建 DataFrame 时，其中的数据类型无法被转换为 float64，因此 pandas 会将其转换为 object 类型。但是在未来的版本中，如果指定了 dtype，那么所有列都将强制转换为指定的数据类型，或者会报错。...

PoC has raised a exception

如果在进行PoC的过程中出现了异常，那么就会出现“PoC has raised a exception”的提示。这通常是由于程序代码中出现了错误，导致程序无法正常运行。开发人员需要对代码进行排查，找出错误并进行修复，才能保证程序...

John has developed a web application. But when he was testing his application he got the ugly result as an output. He wants to return a meaningful result on exception raised. He wants to use @ResponseStatus annotation on custom exception class handling class to return the meaningful result. which one of the following code snippets satisfied his need? import org.springframework.HttpStatus; import org.springframework.annotation.ResponseStatus;A@ResponseStatus(value = HttpStatus. NOT_FOUND, reason = "No such Keyword") public class KeywordNotFoundException extends RuntimeExceptionpublic KeywordNotFoundException(String key){super(key+" not available");

Yes, the following code snippet satisfies John's need: ... import org.springframework.web.bind.annotation.... This will return a meaningful result when an exception is raised in John's web application.

oom runtimeerror is raised due to the huge memory cost during label assignme

Out-of-memory (OOM) runtime errors是由于标签分配过程中产生的巨大内存消耗而引发的。在机器学习和深度学习任务中，标签分配是一个重要的步骤。在模型训练的过程中，我们通常会为每个样本分配一个标签，以指示它...

This exception is raised by the broker if it could not locate the producer metadata associated with the producerId in question. This could happen if, for instance, the producer's records were deleted because their retention time had elapsed. Once the last records of the producerId are removed, the producer's metadata is removed from the broker, and future appends by the producer will return this exception.

这似乎是有关于Kafka的一个异常问题，可能是由于生产者的元数据在Kafka Broker中找不到所引起的。这可能是因为生产者的记录已经被删除，因为它们的保留时间已经过期。一旦删除了生产者ID的最后记录，生产者的元数据...
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