Reviving Archaic Tech: Setup DB Resource/JDBC Realm in Tomcat 7

Setup JDBC Realm in Context.xml

<Realm className="org.apache.catalina.realm.JDBCRealm"
driverName="com.mysql.jdbc.Driver"
connectionURL="jdbc:mysql://localhost/jcredentials?user=root&password=*****"
userTable="users" userNameCol="username" userCredCol="passwd"
   userRoleTable="user_roles" roleNameCol="rolename"/>

Setup JDBC Resource in Context.xml

<Resource name="jdbc/jBlogDB"
auth="Container" 
type="javax.sql.DataSource" 
username="root" password="****"
driverClassName="com.mysql.jdbc.Driver" 
url="jdbc:mysql://localhost/jblog"
maxActive="8" maxIdle="4"/>