Settting up Tomcat 8 Data Source (Oracle)

steps-tomcat8-datasource.xml

<!-- 1) Add "Resource" entry in conf/context.xml -->
<Resource auth="Container" 
	driverClassName="oracle.jdbc.driver.OracleDriver" 
	maxActive="100"  maxIdle="30" maxWait="-1"
	name="jdbc/OracleDS" type="javax.sql.DataSource" 
	url="jdbc:oracle:thin:@host:1521:SIDNAME" 
	username="user"  password="123" />

<!-- 2) Add "resource-ref" entry in conf/web.xml -->
<resource-ref>
		<description>Oracle Datasource</description>
		<res-ref-name>jdbc/OracleDS</res-ref-name>
		<res-type>javax.sql.DataSource</res-type>
		<res-auth>Container</res-auth>
	</resource-ref>