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Unable to start after Java database connection is closed

The error is as follows:Java.sql.SQLException:No Operations allowed after connection closed.At com.mysql.jdbc.Connection.checkClosed (connection.java:1842)At Com.mysql.jdbc.Connection.prepareStatement (connection.java:4260)At Com.mysql.jdbc.Connection.prepareStatement (connection.java:4226)At Hist.nws.db.SqlHelper.query (sqlhelper.java:140)At Hist.nws.service.OperationService.queryActivity (operationservice.java:60)At Mainframe.At Mainframe.main (main

Serverversion exception. Invalid operation. The connection is closed. Solution

[Copyright Disclaimer: This article is the original topic of the tewei blog and is not reprinted without permission. If you need to repost the message, make sure to enter the address of this blog .] Problem: State closed system. Data. connectionstateThe connection is not open ().Add in tryIf (oledbconnection1.state! = Connectionstate. open)Oledbconnection1.open ();AddFinally{If (oledbconnection1.state! = Co

ORA-12537: TNS: connection closed

Error: ORA-12537: TNS: connection closed. Environment: Oracle: 11.2.0.2 OS: LINUX 5.6 Environment: RAC NODE1: 10.20.31.36 NODE2: 10.20.31.38 [Oracle @ ract1 ~] $ Sqlplussys/oracle@10.20.31.36: 1521/racdbas sysdba SQL * Plus: Release 11.2.0.2.0 Production on Tue Jan 15 16:19:04 2013 Copyright (c) 1982,201 0, Oracle. All rights reserved. ERROR:ORA-12537: TNS: connection

Java.sql.SQLException: Closed Connection resolution

(abstracttransactionimpl.java:215) At Org.springframework.orm.hibernate4.HibernateTransactionManager.doRollback (Hibernatetransactionmanager.java : 500) ... More caused By:org.hibernate.TransactionException:unable to rollback against JDBC connection At Org.hibernate.engine.transaction.internal.jdbc.JdbcTransaction.doRollback (jdbctransaction.java:167) At Org.hibernate.engine.transaction.spi.AbstractTransactionImpl.rollback (abstracttransactionimpl.ja

A transmission error occurs when sending a request to the server. (Provider: TCP provider, error: 0-the remote host forces an existing connection to be closed .)

Use vs2005 + sqlserver2008 to develop C/SProgramAfter the program is launched for a period of time, the following errors may occasionally occur in some functions: A transmission error occurs when sending a request to the server. (Provider: TCP provider, error: 0-the remote host forces an existing connection to be closed .) ---> System. Data. sqlclient. sqlexception: A transmission error occurs when a reque

Nginx Error:upstream prematurely closed connection while reading response headers from upstream

This post consists of: http://xinpure.com/nginx-error-upstream-prematurely-closed-connection-while-reading-response-header-from-upstream/Environment descriptionNginx version 1.10.2PHP version 7.0.12Node version 5.9.0This article is to tell a Nginx error, why also mention the PHP and Node version? Let me first restore the application scenarioFirst, I have a Node Server that's bound to Port 3000.I need to acc

No operations allowed after Connection closed exception Solution

Com. MySQL. JDBC. Exceptions. jdbc4.mysqlnontransientconnectionexception: No operations allowed after Connection closed. At com. Xie. Shop. Modal. goodbeanpro. getgood (goodbeanpro. Java: 24 ): PS = CT. preparestatement ("select * from goods where goodsid =? "); Error This error indicates that the connection is closed

Listen for error tns-00525:insufficient privilege for operation 11GR2 + connection error ora-12537:tns:connection closed

1.tns-00525:insufficient Privilege for operation Started with pid=30869 listening on: (Description= (Address= (protocol=tcp) (host=ora11g) (port=1521)) Error Listening on: (Description= (Address= (PROTOCOL=IPC) (key=extproc1521)) Tns-12555:tns:permission denied Tns-12560:tns:protocol Adapter Error tns-00525:insufficient privilege for Operation Linux Error:1: Operation N OT permitted No longer listening on: (Description= (Address= (protocol=tcp) (host=ora11g) (port=1521 )) 2014-07-10 14:17:

Error: Ora-12537:tns: Connection closed

/wKioL1XeeKHTbgXgAADmmjMnc8k351.jpg "title=" Picture 1.png "alt=" Wkiol1xeekhtbgxgaadmmjmnc8k351.jpg "/>See this error, it is understood that the database connection number is occupied, causing the connection to close the error. Problem solving:Immediately let the development side of the colleague, turn off connect this database test users, release some connections. Then, through the PL/SQL tool, connect to

How to solve the problem that the SQL Server user instance cannot be generated due to an error in starting the process of the user instance. The connection is closed.

I believe many people are using ASP. NET 2.0 + sql2005 + aspnetdb (membership and other functions) This problem occurs: "An error occurred while starting the process of the user instance, resulting in the failure to generate a user instance of SQL Server. The connection will be closed .", The error message for the same problem in the English version is: "failed to generate a user instance of SQL Server due

How does outlook2010 prompt that the IMAP server has closed the connection?

Tags: http OS usage problems ad EF time server TT When I recently used the IMAP function of Netease 163 mail in outlook, I found that the speed of receiving emails was very slow. It took at least 15 minutes for a few emails to stop synchronizing the mail server, then, a dialog box is displayed, "the IMAP server has closed the connection. This occurs if the connection

{system.invalidoperationexception: invalid operation.} The connection is closed.

System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner (Int32 reason, ApplicationContext context)In System.Windows.Forms.Application.ThreadContext.RunMessageLoop (Int32 reason, ApplicationContext context)In System.Windows.Forms.Application.RunDialog (Form form)At System.Windows.Forms.Form.ShowDialog (IWin32Window owner)In System.Windows.Forms.Form.ShowDialog ()In Program.main () position Program.cs: line number 751}cause of error:When using transaction transaction to operate the dat

The basic connection has been closed when WebService is called.

Scenario: . Net Windows service calls remote WebService. If the basic link is disabled, you can directly access WebService through IE,ProgramThe call is always good or bad, and it's weird. I tried many methods on the Internet, but none of them worked. Solution Process: It took about an hour to download a software on that server yesterday. I found that the basic connection was disabled during the hour, this is a situation. Is it because of the netwo

HttpWebRequest The underlying connection has been closed: An error occurred while receiving

. Close (); } if(Response! =NULL) {Response. Close (); Response=NULL; } } //parsingJavaScriptSerializer JsonConvert =NewJavaScriptSerializer (); Dynamic Responseobj=Jsonconvert.deserializeobject (responsestring); if(Responseobj isdictionarystring,Object>) {Dictionarystring,Object> jsonobj = (dictionarystring,Object>) Responseobj; Message. Responsemessage=string. Format ("[{0}]"+jsonobj["Resultdesc"]. To

"The underlying connection has been closed: An error occurred on receive" when WCF gets a data object

Today, when using WCF to return an object, an error was encountered: The underlying connection was closed: An error occurred while receiving. After a large half-day of the investigation, turned out to be a humble thing in mischief:This. Configuration.proxycreationenabled = true;It is true in the above code that causes the program to error, and then it resolves the problem by changing the true to False.Micro

The remote host forces an existing connection to be closed. How can this problem be solved?

The remote host forces an existing connection to be closed. Note:An error occurred while executing the current Web request. Check the stack trace information to learn about this error andCodeDetailed information about the cause of the error. Exception details:System. net. sockets. socketexception: the remote host forces an existing connection to be

How to solve the problem that the basic ftpwebrequest connection has been closed; An error occurred while receiving (zz)

On the FTP server, I added some Chinese welcome words to the "messages" tab.BelowCodeAfter debugging, the system prompts "the basic connection has been closed; An error occurred while receiving". After querying relevant information, I can find the following methods to solve this problem. Method: remove the Chinese welcome word from the FTP server or change it to an English welcome word. This is a Microsof

MyBatis abnormality: No operations allowed after connection closed

MyBatis Connection MySQL Report exception: No operations allowed after connection closed. Connection was IConnection Pool ErrorMyBatis Connection MySQL Report exception: No operations allowed after connection

POST request remote URL error "The underlying connection has been closed ... Authentication.authenticationexception ... Invalid Remote certificate "solution

When we sometimes write the POST request URL in code the remote address will report "The underlying connection has been closed: failed to establish a trust relationship for the SSL/TLS secure channel." ---> System.Security.Authentication.AuthenticationException: The remote certificate is not valid according to the verification process . This exception is due to the fact that the domain name used by the remo

The underlying connection was closed: the server committed a Protocol Violation

I. Problem generation: An inexplicable error occurred while downloading files from the FTP server using C. (The test is normal on the local machine. This occurs only when deployed on the server, and the error prompt is strange ). "The underlying connection was closed: the server committed a protocol violation" is translated into Chinese: "The basic connection has

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