How to change the liferay database to mysql database - liferay-6

Question

I have downloaded the liferay6 bundle with tomcat.I need to change the liferay database to mysql database.I have searched in google and as per information i have created the portal-ext.properties with below lines of code.
jdbc.default.driverClassName=com.mysql.jdbc.Driver
jdbc.default.url=jdbc:mysql://localhost/lportal?useUnicode=true&characterEncoding=UTF-8&useFastDateParsing=false
jdbc.default.username=root
jdbc.default.password=root123
jdbc.default.jndi.name=jdbc/LiferayPool
schema.run.enabled=true
schema.run.minimal=true
and i modified the ROOT.xml.Now the code in that file is :
<Context path="" crossContext="true">
<Resource
name="jdbc/LiferayPool"
auth="Container"
type="javax.sql.DataSource"
driverClassName="com.mysql.jdbc.Driver"
url="jdbc:mysql://localhost/lportal?useUnicode=true&characterEncoding=UTF-8"
username="root"
password="root123"
maxActive="20"
/>
</Context>
and i have created the lportal database in mysql.Do i need to modify anything more.If i do like this i am not even able to see the default login page of liferay.Can anyone point me where i am doing wrong.Thank You.
I am getting the below Exception if i am doing like this.
java.net.ConnectException: Connection refused
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:339)
at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:200)
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:182)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:391)
at java.net.Socket.connect(Socket.java:579)
at java.net.Socket.connect(Socket.java:528)
at java.net.Socket.<init>(Socket.java:425)
at java.net.Socket.<init>(Socket.java:241)
at com.mysql.jdbc.StandardSocketFactory.connect(StandardSocketFactory.java:256)
at com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java:271)
at com.mysql.jdbc.Connection.createNewIO(Connection.java:2744)
at com.mysql.jdbc.Connection.<init>(Connection.java:1553)
at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:285)
at com.mchange.v2.c3p0.DriverManagerDataSource.getConnection(DriverManagerDataSource.java:134)
at com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:182)
at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool$1PooledConnectionResourcePoolManager.acquireResource(C3P0PooledConnectionPool.java:148)
at com.mchange.v2.resourcepool.BasicResourcePool.doAcquire(BasicResourcePool.java:1014)
at com.mchange.v2.resourcepool.BasicResourcePool.access$800(BasicResourcePool.java:32)
at com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask.run(BasicResourcePool.java:1810)
at com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:547)
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'com.liferay.portal.spring.aop.ServiceBeanAutoProxyCreator#0' defined in class path resource [META-INF/base-spring.xml]: Cannot resolve reference to bean 'serviceAdvice' while setting bean property 'methodInterceptor'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'serviceAdvice' defined in class path resource [META-INF/base-spring.xml]: Cannot resolve reference to bean 'asyncAdvice' while setting bean property 'nextMethodInterceptor'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'asyncAdvice' defined in class path resource [META-INF/base-spring.xml]: Cannot resolve reference to bean 'threadLocalCacheAdvice' while setting bean property 'nextMethodInterceptor'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'threadLocalCacheAdvice' defined in class path resource [META-INF/base-spring.xml]: Cannot resolve reference to bean 'bufferedIncrementAdvice' while setting bean property 'nextMethodInterceptor'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'bufferedIncrementAdvice' defined in class path resource [META-INF/base-spring.xml]: Cannot resolve reference to bean 'indexableAdvice' while setting bean property 'nextMethodInterceptor'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'indexableAdvice' defined in class path resource [META-INF/base-spring.xml]: Cannot resolve reference to bean 'transactionAdvice' while setting bean property 'nextMethodInterceptor'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'transactionAdvice' defined in class path resource [META-INF/base-spring.xml]: Cannot resolve reference to bean 'liferayTransactionManager' while setting bean property 'platformTransactionManager'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'liferayTransactionManager' defined in class path resource [META-INF/hibernate-spring.xml]: Cannot resolve reference to bean 'liferayHibernateSessionFactory' while setting constructor argument; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'liferayHibernateSessionFactory' defined in class path resource [META-INF/hibernate-spring.xml]: Invocation of init method failed; nested exception is java.lang.NullPointerException
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:328)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:106)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1327)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1085)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:516)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:455)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:293)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:290)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:196)
at org.springframework.context.support.AbstractApplicationContext.registerBeanPostProcessors(AbstractApplicationContext.java:710)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:410)
at org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:282)
at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:204)
at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:47)
at com.liferay.portal.spring.context.PortalContextLoaderListener.contextInitialized(PortalContextLoaderListener.java:172)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4779)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5273)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:895)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:871)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:615)
at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:649)
at org.apache.catalina.startup.HostConfig$DeployDescriptor.run(HostConfig.java:1585)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
at java.util.concurrent.FutureTask.run(FutureTask.java:166)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
at java.lang.Thread.run(Thread.java:722)

Answer 1

1-updating java connector driver
be sure that the liferay portal is not started ! if it does, then shut down.
download and install MySQL and HeidiSQL, you can simply create mysql database via HeidiSql.
download mysql.jar (Connector/J) from dev.mysql.com
you may not login just go below in page and click link: No thanks, just start my download.
delete mysql.jar in liferay-portal-6.1.1-ce-ga2\tomcat-7.0.27\lib\ext
copy mysql-connector-java-some version-bin.jar in
\Program Files(x86)\MySQL\Connector J folder and
paste it in liferay-portal-6.1.1-ce-ga2\tomcat-7.0.27\lib\ext .(don't forget to rename it to mysql.jar)
2- work with control panel of liferay
now you can start liferay portal
open in browser localhost:8080/
go to -> control panel -> server administration -> Data Migration
JDBC Driver Class Name:
com.mysql.jdbc.Driver
JDBC URL:
jdbc:mysql://localhost:3306/DB-NAME?useUnicode=true&characterEncoding=UTF-8&useFastDateParsing=false
DB-NAME - name of database you've created earlier.
write MySQL username and password then click the button below.
now in the next page you can see some text in the *red border*like : The system is currently undergoing maintenance. Please try again later.
It's allright. just wait for .. may be half an hour or more or less, just wait, and be patient))
while process is going, you can do the next last step:
3- change portal properties
open file portal-ext.properties (create it if doesn't exist) in liferay-portal-6.1.1-ce-ga2\tomcat-7.0.27\webapps\ROOT\WEB-INF\classes and paste to this file following text:
jdbc.default.driverClassName=com.mysql.jdbc.Driver
jdbc.default.url=jdbc:mysql://localhost:here must be DB port, by default it's 3306/*DB_NAME*?useUnicode=true&characterEncoding=UTF-8&useFastDateParsing=false
jdbc.default.username=username of MySQL user
jdbc.default.password=password of MySQL user
THAT'S IT
RESTART TOMCAT SERVER

Answer 2

In your portal-ext.properties file, it should be enough if you specif JNDI name to lookup.
jdbc.default.jndi.name=MyDataSource
In your Tomcat's xml file,
<Resource
name="MyDataSource"
auth="Container"
type="javax.sql.DataSource"
driverClassName="com.mysql.jdbc.Driver"
url="jdbc:mysql://localhost/lportal?useUnicode=true&characterEncoding=UTF-8"
username="root"
password="root123"
maxActive="20"
/>
Make sure that the user you are using above (root) has privilege to create the tables.
Also, don't forget to restart your Tomcat container.
Even on top of this if it doesn't work, share the exceptions in your (bin) logs.