Deploying war to Tomcat using Maven

Step1: Add following in tag:

Step2: Add the username and password for the manager account in $MAVEN_HOME/conf/settings.xml file.

value in tag in step1 should be same as id in in step2


Step3: Maven command to build & deploy
        mvn clean install tomcat:deploy


to undeploy use: 
     mvn tomcat:undeploy


This does:

• Deletes the service-war/target output folder if it already exists (same as mvn clean alone)
• Recreates the folder and generates and compiles the Java classes into it (mvn package)
• Creates a WAR file for the web service provider and JAR file for the JAX-WS artifacts (mvn package)
• Installs the JAR and WAR into your local Maven repository (mvn install)
• Undeploys the previous WAR file (tomcat:undeploy of the Maven Tomcat plugin) from Tomcat
• Deploys the new WAR file onto Tomcat. (mvn tomcat:deploy)

Creating DataSource in Tomcat

Unlike Weblogic AppServer, the tomcat don't provide way to add the datasource via the admin console.
For managing the datasource, we need to edit the settings.xml; follow the link:
Datasource in Tomcat
[This done by editing context.xml in the apache~/conf]