jdbc connection on tomcat server - apache

Question

I will try to formulate as best as I can.
First, web application(Spring MVC with Spring Jdbc) worked well until I started messing out with versions of STS(Spring Tool Suite based on Eclipse) and JDK+JRE7 to get features of Java 7.
Second, the current problem is that Apache Tomcat 6 or 7(I have both which I reinstalled for reason I don't remember) seems to be affecting the connection to the database. Saying directly: it fails to get jdbc connection
org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection; nested exception is java.sql.SQLException: No suitable driver found for jdbc:postgresql:postgres
and it happens whenever I try to do any operation on database from my web application.
The line jdbc:postgresql:postgres is OK just in case, because it worked before and it effectively says to connect to local database with name postgres(and also because of the point below).
Another important point to mention is that under vFabric tc Server everything works flawlessly without any problems whatsoever.
Third, the database is PostgreSql along with Apache DBCP pooling.
Fourth, the maven jdbc driver dependencies seems to work well, as again if they didn't vFabric tc Server would also fail same as Apache Tomcat which leads to me to an idea that Apache Tomcat is itself the culprit.
Some of the information produced during server start-up:
Dec 14, 2011 4:54:32 PM org.apache.catalina.core.AprLifecycleListener init
INFO: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: C:\ProgramFiles\Java\jdk1.7.0_02\bin;C:\Windows\Sun\Java\bin;C:\Windows\system32;C:\Windows;C:\Program Files (x86)\MiKTeX 2.9\miktex\bin;C:\Program Files\Apache Software Foundation\apache-maven-3.0.3\bin;C:\Program Files (x86)\NVIDIA Corporation\PhysX\Common;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Program Files\Intel\WiFi\bin\;C:\Program Files\Common Files\Intel\WirelessCommon\;C:\Program Files\WIDCOMM\Bluetooth Software\;C:\Program Files\WIDCOMM\Bluetooth Software\syswow64;C:\Program Files (x86)\Microsoft SQL Server\100\Tools\Binn\;C:\Program Files\Microsoft SQL Server\100\Tools\Binn\;C:\Program Files\Microsoft SQL Server\100\DTS\Binn\;C:\Program Files (x86)\QuickTime\QTSystem\;.
Dec 14, 2011 4:54:32 PM org.apache.coyote.AbstractProtocol init
INFO: Initializing ProtocolHandler ["http-bio-8080"]
Dec 14, 2011 4:54:32 PM org.apache.coyote.AbstractProtocol init
INFO: Initializing ProtocolHandler ["ajp-bio-8009"]
Dec 14, 2011 4:54:32 PM org.apache.catalina.startup.Catalina load
INFO: Initialization processed in 849 ms
Dec 14, 2011 4:54:32 PM org.apache.catalina.core.StandardServicestartInternal
INFO: Starting service Catalina
Dec 14, 2011 4:54:32 PM org.apache.catalina.core.StandardEngine startInternal
INFO: Starting Servlet Engine: Apache Tomcat/7.0.23
Dec 14, 2011 4:54:33 PM org.apache.catalina.startup.HostConfig deployDescriptor
INFO: Deploying configuration descriptor C:\Users\User\Documents\workspace-sts\.metadata\.plugins\org.eclipse.wst.server.core\tmp0\conf\Catalina\localhost\project.xml
Dec 14, 2011 4:54:33 PM org.apache.catalina.startup.SetContextPropertiesRule begin
WARNING: [SetContextPropertiesRule]{Context} Setting property 'source' to 'org.eclipse.jst.jee.server:project' did not find a matching property.
Dec 14, 2011 4:54:34 PM org.apache.catalina.core.ApplicationContext log
INFO: Initializing Spring root WebApplicationContext
Dec 14, 2011 4:54:37 PM org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ["http-bio-8080"]
Dec 14, 2011 4:54:37 PM org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ["ajp-bio-8009"]
Dec 14, 2011 4:54:37 PM org.apache.catalina.startup.Catalina start
INFO: Server startup in 4664 ms
I am really desperate please help.
UPDATE:
Still sitting in front looking at sad screen, so I decided to include all the .xml configuration.
<bean id="dataSource" class="org.apache.commons.dbcp.PoolingDataSource">
<constructor-arg ref="connectionPool"/>
</bean>
<bean id ="connectionPool" class="org.apache.commons.pool.impl.GenericObjectPool">
<constructor-arg><null/></constructor-arg>
</bean>
<bean id="poolableConnectionFactory" class="org.apache.commons.dbcp.PoolableConnectionFactory" >
<constructor-arg ref="connectionFactory"/>
<constructor-arg ref="connectionPool"/>
<constructor-arg><null/></constructor-arg>
<constructor-arg><null/></constructor-arg>
<constructor-arg value="false"/>
<constructor-arg value="true"/>
</bean>
<bean id="connectionFactory" class="org.apache.commons.dbcp.DriverManagerConnectionFactory">
<constructor-arg value="jdbc:postgresql:postgres"/>
<constructor-arg value="postgres"/>
<constructor-arg value="myCorrectPassword"/>
</bean>

Answer 1

In grl, I'd say that DB drivers should probably go into the common lib folder on Tomcat.
Usually those drivers are used for several applications.
Additionally, if you set your pool in the context.xml, this is required.