<Realm  className="org.apache.catalina.realm.JDBCRealm" debug="99"
              driverName="org.gjt.mm.mysql.Driver"
              connectionURL="jdbc:mysql://192.168.109.197/authority"
              connectionName="paytv"
              connectionPassword="asdfasdfs"   
              autoReconnect="true"
              userTable="users" userNameCol="user_name"
  userCredCol="user_pass"
              userRoleTable="user_roles" roleNameCol="role_name" />