Unable to connect the SQL database from servlet

Hi!
My servlet connects with an SQL server on some other machine.
I have create the servlet and deploy it on tomcat.
I first create this servlet on eclipse that I deploy it on tomcat manually.
While using it form eclipse it gave no error in connecting with the server.
But when I deploy the same code on tomcat manually and access the page it gave me an error saying
[Microsoft][ODBC SQL Server Driver][SQL Server]Login failed for user 'NT AUTHORITY\ANONYMOUS LOGON'
I used the following code for cenneting the server
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
out.println("Calling For Class Name success Now calling database <br>");
jdbcConnection = DriverManager.getConnection("jdbc:odbc:Driver={SQL Server};Server=MyServerName;Database=MyDatabaseName","","");
Message was edited by:
nitin403

Hi!
Sorry for not formating my previous message properly.
My servlet connects with an SQL server on some remote machine.
I have create the servlet and deploy it on tomcat.
I first create this servlet on eclipse that I deploy it on tomcat manually.
While using it form eclipse it gave no error in connecting with the server.
But when I deploy the same code on tomcat manually and access the page it gave me an error saying
[Microsoft][ODBC SQL Server Driver][SQL Server]Login failed for user 'NT AUTHORITY\ANONYMOUS LOGON'
I used the following code for connecting the server
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
jdbcConnection = DriverManager.getConnection("jdbc:odbc:Driver={SQL Server};Server=MyServerName;Database=MyDatabaseName","","");
Thanx for your help in advance
Message was edited by:
nitin403

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   at
System.Data.SqlClient.SqlInternalConnectionTds.OpenLoginEnlist(TimeoutTimer
timeout, SqlConnectionString connectionOptions, SqlCredential credential,
String newPassword, SecureString newSecurePassword, Boolean
redirectedUserInstance)<o:p></o:p>
   at
System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity
identity, SqlConnectionString connectionOptions, SqlCredential credential,
Object providerInfo, String newPassword, SecureString newSecurePassword,
Boolean redirectedUserInstance, SqlConnectionString userConnectionOptions,
SessionData reconnectSessionData)<o:p></o:p>
   at
System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions
options, DbConnectionPoolKey poolKey, Object poolGroupProviderInfo,
DbConnectionPool pool, DbConnection owningConnection, DbConnectionOptions
userOptions)<o:p></o:p>
   at
System.Data.ProviderBase.DbConnectionFactory.CreatePooledConnection(DbConnectionPool
pool, DbConnection owningObject, DbConnectionOptions options,
DbConnectionPoolKey poolKey, DbConnectionOptions userOptions)<o:p></o:p>
   at
System.Data.ProviderBase.DbConnectionPool.CreateObject(DbConnection
owningObject, DbConnectionOptions userOptions, DbConnectionInternal
oldConnection)<o:p></o:p>
   at System.Data.ProviderBase.DbConnectionPool.UserCreateRequest(DbConnection
owningObject, DbConnectionOptions userOptions, DbConnectionInternal
oldConnection)<o:p></o:p>
   at
System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection
owningObject, UInt32 waitForMultipleObjectsTimeout, Boolean allowCreate,
Boolean onlyOneCheckConnection, DbConnectionOptions userOptions,
DbConnectionInternal& connection)<o:p></o:p>
   at
System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection
owningObject, TaskCompletionSource`1 retry, DbConnectionOptions userOptions,
DbConnectionInternal& connection)<o:p></o:p>
   at
System.Data.ProviderBase.DbConnectionFactory.TryGetConnection(DbConnection
owningConnection, TaskCompletionSource`1 retry, DbConnectionOptions
userOptions, DbConnectionInternal oldConnection, DbConnectionInternal&
connection)<o:p></o:p>
   at
System.Data.ProviderBase.DbConnectionInternal.TryOpenConnectionInternal(DbConnection
outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource`1
retry, DbConnectionOptions userOptions)<o:p></o:p>
   at
System.Data.SqlClient.SqlConnection.TryOpenInner(TaskCompletionSource`1 retry)<o:p></o:p>
   at
System.Data.SqlClient.SqlConnection.TryOpen(TaskCompletionSource`1 retry)<o:p></o:p>
   at System.Data.SqlClient.SqlConnection.Open()<o:p></o:p>
Inner Exception:<o:p></o:p>
:<o:p></o:p>
The target principal name is incorrect

The target principal name is incorrect
Hi Rahul.U,
Are you able to connect to SQL Server successfully from SQL Server Management Studio (SSMS) when enforcing encryption?
According to above error message, it could be caused by the inappropriate server name or incorrect TrustServerCertificate configuration in the connection string from Visual Studio. There are some proposals for you troubleshooting this error.
1. Make sure that you connect to the SQL server using the fully qualified domain name (FQDN).
2. When connecting to a SQL Server instance with a valid certificate, please add the
TrustServerCertificate
parameter and set it to true in the connection string. For more details, please review this
article.
However, if you can successfully connect to SQL Server via SSMS, but still fail to connect to SQL Server from Visual Studio, I would like to recommend you post the question in the .Net Framework forum at
https://social.msdn.microsoft.com/Forums/vstudio/en-US/home?category=netdevelopment . It is appropriate and more experts will assist you.
There are similar articles about error “The target principal name is incorrect” for your reference.
http://serverfault.com/questions/458935/aws-rds-sql-server-ssl-connection-the-target-principal-name-is-incorrect
http://www.derekseaman.com/2013/09/sql-2012-failover-cluster-pt-12-kerberos-n.html
Thanks,
Lydia Zhang
Lydia Zhang
TechNet Community Support

How do the application servers connect the new database after failing over from primary DB to standby DB

How do the application servers connect the new database after failing over from primary DB to standby DB?
We have setup a DR environment with a standalone Primary server and a standalone Physical Standby server on RHEL Linux 6.4. Now our application team would like to know:
When the primary DB server is crashed, the standy DB server will takeover the role of primary DB through the DataGuard fast failover. As the applications are connected by the primary DB IP before,currently the physical DB is used as a different IP or listener. If this is happened, they need to stop their application servers and re-configure their connection so the they coonect the new DB server, they cannot tolerate these workaround.
Whether does oracle have the better solution for this so that the application can automatically know the role's transition and change to the new IP without re-confige any connection and shutdown their application?
Oracle support provides us the answer as following:
==================================================================
Applications connected to a primary database can transparently failover to the new primary database upon an Oracle Data Guard role transition. Integration with Fast Application Notification (FAN) provides fast failover for integrated clients.
After a failover, the broker publishes Fast Application Notification (FAN) events. These FAN events can be used in the following ways:
Applications can use FAN without programmatic changes if they use one of these Oracle integrated database clients: Oracle Database JDBC, Oracle Database Oracle Call Interface (OCI), and Oracle Data Provider for .NET ( ODP.NET). These clients can be configured for Fast Connection Failover (FCF) to automatically connect to a new primary database after a failover.
JAVA applications can use FAN programmatically by using the JDBC FAN application programming interface to subscribe to FAN events and to execute event handling actions upon the receipt of an event.
FAN server-side callouts can be configured on the database tier.
FAN events are published using Oracle Notification Services (ONS) and Oracle Streams Advanced Queuing (AQ).
=======================================================================================
Who has the experience and the related documentation or other solutions? we don't have the concept of about FAN.
Thank very much in advance.

Hi mesbeg,
Thanks alot.
For example, there is an application JBOSS server connecting the DB, we just added another datasource and put the standby IP into the configuration file except adding a service on DB side like this following:
        <subsystem xmlns="urn:jboss:domain:datasources:1.0">
        <datasources>
                <datasource jta="false" jndi-name="java:/jdbc/idserverDatasource" pool-name="IDServerDataSource" enabled="true" use-java-context="true">
                    <connection-url>jdbc:oracle:thin:@<primay DB IP>:1521:testdb</connection-url>
                    <connection-url>jdbc:oracle:thin:@<standby DB IP>:1521:testdb</connection-url>
                    <driver>oracle</driver>
                    <pool>
                        <min-pool-size>2</min-pool-size>
                        <max-pool-size>10</max-pool-size>
                        <prefill>true</prefill>
                    </pool>
                    <security>
                        <user-name>TEST_USER</user-name>
                        <password>Password1</password>
                    </security>
                    <validation>
                        <valid-connection-checker class-name="org.jboss.jca.adapters.jdbc.extensions.oracle.OracleValidConnectionChecker"/>
                        <validate-on-match>false</validate-on-match>
                        <background-validation>false</background-validation>
                        <use-fast-fail>false</use-fast-fail>
                        <stale-connection-checker class-name="org.jboss.jca.adapters.jdbc.extensions.oracle.OracleStaleConnectionChecker"/>
                        <exception-sorter class-name="org.jboss.jca.adapters.jdbc.extensions.oracle.OracleExceptionSorter"/>
                    </validation>
                </datasource>
                <drivers>
                    <driver name="oracle" module="com.oracle.jdbc">
                        <xa-datasource-class>oracle.jdbc.OracleDriver</xa-datasource-class>
                    </driver>
                </drivers>
            </datasources>
        </subsystem>
If the failover is occurred, the JBOSS will automatically be pointed to the standby DB. Additional actions are not needed.

Excel Application Unable to Connect the Highavailable(Mirrorining) database

Hi Folks,
Please help me out from below Issue.
We have developed an Excel application to pull data from Back-end Database.
The database is configured in High availability Mirroring, When fail over occurs the Database moving from One server DB to Another Server DB.
But my Excel application is not pointing to the Failover DB when the One DB fails.
We are using the below Connection string in the excel application:
*"Data Source=Server A;Failover Partner=Server B; Initial Catalog=AdventureWorks; Integrated Security=True;"*
When Server A is unavailable, it shows the below error.
PFA : Error.jpg
And again asking for Authentication
PFA : Authentication.jpg
Here we need to Enter Credentials manually and then it is able to connect the desired database.
But it is not possible to spread credentials to end –user.
Can anyone please provide solution for this issue to automate the above scenario without manual intervention?
Thanks in Advance 

make sure that "sun.jdbc.odbc.JdbcOdbcDriver" is on your classpath ,

Unable to connect the SQL database from servlet

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