Could you please send the error message as is I think its: “Invalid Operation. The Connection is closed”, that means you didn't call the .Open method or your already closed the connection and you want to use it again. You can verify the state of the SqlConnection by reading the Stat...
SqlConnection.Open指示客户端正在尝试打开连接,因此与查询无关。 请参阅查询或命令超时的调用堆栈的以下示例: 输出 System.Data.SqlClient.SqlException: Timeout expired. The timeout period elapsed prior to completion of the operation or the server is not responding. at System.Data.SqlClient.SqlConnecti...
如果顺序错了就会报java.sql.SQLException: Conntion is closed。 (2)在并发情况下,把connection,CallableStatement,ResultSet都设置成了成员变量而报错,我就是犯了这个错误。其实应该设置为局部变量,原因我想了一下 conn.close();好像不是释放链接,是关闭链接,而设成成员变量在多个请求同时访问时会大量的数据库连接无...
Explanation: Connection does not exist. 说明：连接不存在。SQLCODE -900 SQLSTATE 08003 Explanation: Application process not in a connected state. 说明：应用程序不处于连接状态的过程。根据执行次数排序 [db2inst2@localhost ~]$ grep -ni "number of executions" snap.out |grep -v "=0" |...
SQLServerAgent could not be started (reason: Unable to connect to server '(local)'; SQLServerAgent SQLServerAgent could not be started (reason: Unable to connect to server '<ServerNAme>'; SQLServerAgent cannot start) SQLServerException: The connection is closed. SQLsrv64.dll SQLVDI: Loc=Si...
2014-05-20 16:53:26.75 登录 SSPI handshake failed with error code 0x8009030c, state 14 while establishing a connection with integrated security; the connection has been closed. Reason: AcceptSecurityContext 失败。Windows 错误代码指示失败的原因。 登录没有成功 [客户端: <local machine>] 2014-05-...
[0]; Invalid state, the Connection object is closed.; nested exception is java.sql.SQLException: Invalid state, the Connection object is closed. JBWEB000069: description JBWEB000145: The server encountered an internal error that prevented it from fulfilling this request. JBWEB000070: exception ...
If you see this error, it usually means you don't have sufficient credential to connect to the server, e.g, wrong user name and/or password when you are using SQL authentication. The connection is closed by server before an error message is ...
Caused by: java.sql.SQLException: I/O Error: DB server closed connection. at net.sourceforge.jtds.jdbc.TdsCore.nextToken(TdsCore.java:2311) at net.sourceforge.jtds.jdbc.TdsCore.login(TdsCore.java:603) at net.sourceforge.jtds.jdbc.ConnectionJDBC2.<init>(ConnectionJDBC...
错误一、com.microsoft.sqlserver.jdbc.SQLServerException:The TCP/IP connection to the host localhost, port 1433 has failed. Error:Connection refused: connect. Please verify the connection properties and checkthat a SQL Server instance is running on the host and accepting TCP/IPconnections at the por...