not able to connect database in jdeveloper

I created jpr's for web and EJB's in Jdeveloper;



for EJB this is ejb-jar.xml file

<?xml version="1.0" encoding="UTF-8"?>

<!DOCTYPE ejb-jar PUBLIC '-//Sun Microsystems, Inc.//DTD Enterprise JavaBeans 2.0//EN' 'http://java.sun.com/dtd/ejb-jar_2_0.dtd'>

<ejb-jar>
  <description>No Description</description>
  <display-name>EJB</display-name>
  <small-icon />
  <large-icon />
  <enterprise-beans>
    <session>
      <description>No Description</description>
      <display-name>ESupplyUtilitiesSessionBean</display-name>
      <ejb-name>ESupplyUtilitiesSessionBean</ejb-name>
      <home>com.foursoft.esupply.common.ejb.sls.ESupplyUtilitiesSessionHome</home>
      <remote>com.foursoft.esupply.common.ejb.sls.ESupplyUtilitiesSession</remote>
      <ejb-class>com.foursoft.esupply.common.ejb.sls.ESupplyUtilitiesSessionBean</ejb-class>
      <session-type>Stateless</session-type>
      <transaction-type>Container</transaction-type>
      <resource-ref>
      <description>No Description</description>
      <res-ref-name>jdbc/DB</res-ref-name>
      <res-type>javax.sql.DataSource</res-type>
      <res-auth>Container</res-auth>
      
      </resource-ref>
    </session>
  </enterprise-beans>
</ejb-jar>

orion-ejb-jar.xml

<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE orion-ejb-jar PUBLIC "-//Evermind//DTD Enterprise JavaBeans 1.1 runtime//EN" "http://xmlns.oracle.com/ias/dtds/orion-ejb-jar.dtd">

<orion-ejb-jar deployment-version="9.0.2.0.0" deployment-time="f862b45653">
      <enterprise-beans>
            <session-deployment name="ConsolSessionBean" max-instances="10" location="ConsolSessionBean" >
                  <resource-ref-mapping name="jdbc/DB" location="oraclePool" />
            </session-deployment>
            <session-deployment name="ETCustomerContractSessionBean" max-instances="10" location="ETCustomerContractSessionBean" >
                  <resource-ref-mapping name="jdbc/DB" location="oraclePool" />
            </session-deployment>
            <session-deployment name="ETransGatewaySetupSessionBean" max-instances="10" location="ETransGatewaySetupSessionBean" >
                  <resource-ref-mapping name="jdbc/DB" location="oraclePool" />
            </session-deployment>
            <session-deployment name="QuoteSessionBean" max-instances="10" location="QuoteSessionBean" >
                  <resource-ref-mapping name="jdbc/DB" location="oraclePool" />
            </session-deployment>
            <session-deployment name="ETransHOSuperUserSetupSessionBean" max-instances="10" location="ETransHOSuperUserSetupSessionBean" >
                  <resource-ref-mapping name="jdbc/DB" location="oraclePool" />
            </session-deployment>
            <session-deployment name="ETransHOAdminSetupSessionBean" max-instances="10" location="ETransHOAdminSetupSessionBean" >
                  <resource-ref-mapping name="jdbc/DB" location="oraclePool" />
            </session-deployment>
            <session-deployment name="OceanTariffSessionBean" max-instances="10" location="OceanTariffSessionBean" >
                  <resource-ref-mapping name="jdbc/DB" location="oraclePool" />
            </session-deployment>
            <session-deployment name="ClausesSessionBean" max-instances="10" location="ClausesSessionBean" >
                  <resource-ref-mapping name="jdbc/DB" location="oraclePool" />
            </session-deployment>
            <session-deployment name="TaxEngineBean" max-instances="10" location="TaxEngineBean" >
                  <resource-ref-mapping name="jdbc/DB" location="oraclePool" />
            </session-deployment>
            <session-deployment name="ChargeMasterSessionBean" max-instances="10" location="ChargeMasterSessionBean" >
                  <resource-ref-mapping name="jdbc/DB" location="oraclePool" />
            </session-deployment>
            <session-deployment name="AccessControlSessionBean" max-instances="10" location="AccessControlSessionBean" >
                  <resource-ref-mapping name="jdbc/DB" location="oraclePool" />
            </session-deployment>
            <session-deployment name="UserRoleRegistrationSessionBean" max-instances="10" location="UserRoleRegistrationSessionBean" >
                  <resource-ref-mapping name="jdbc/DB" location="oraclePool" />
            </session-deployment>
            <session-deployment name="ESupplyUtilitiesSessionBean" max-instances="10" location="ESupplyUtilitiesSessionBean" >
                  <resource-ref-mapping name="jdbc/DB" location="oraclePool" />
            </session-deployment>
            <session-deployment name="MailerBean" max-instances="10" location="MailerBean" >
                  <resource-ref-mapping name="mail/MS" location="mailPool" />
            </session-deployment>
            <session-deployment name="ETSSetupSessionBean" max-instances="10" location="ETSSetupSessionBean" >
                  <resource-ref-mapping name="jdbc/DB" location="oraclePool" />
            </session-deployment>
            <session-deployment name="ETDOSessionBean" max-instances="10" location="ETDOSessionBean" >
                  <resource-ref-mapping name="jdbc/DB" location="oraclePool" />
            </session-deployment>
            <session-deployment name="OIDSessionBean" max-instances="10" location="OIDSessionBean" >
                  <resource-ref-mapping name="jdbc/DB" location="oraclePool" />
            </session-deployment>
            <session-deployment name="CustomerReportSessionBean" max-instances="10" location="CustomerReportSessionBean" >
                  <resource-ref-mapping name="jdbc/DB" location="oraclePool" />
            </session-deployment>
            <session-deployment name="OperationalReportSessionBean" max-instances="10" location="OperationalReportSessionBean" >
                  <resource-ref-mapping name="jdbc/DB" location="oraclePool" />
            </session-deployment>
            <session-deployment name="TrackingSessionBean" max-instances="10" location="TrackingSessionBean" >
                  <resource-ref-mapping name="jdbc/DB" location="oraclePool" />
            </session-deployment>
            <session-deployment name="ShipmentEventsSessionBean" max-instances="10" location="ShipmentEventsSessionBean" >
                  <resource-ref-mapping name="jdbc/DB" location="oraclePool" />
            </session-deployment>
            <session-deployment name="GpsSetupSessionBean" max-instances="10" location="GpsSetupSessionBean" >
                  <resource-ref-mapping name="jdbc/DB" location="oraclePool" />
            </session-deployment>
            <session-deployment name="BeyondCostSessionBean" max-instances="10" location="BeyondCostSessionBean" >
                  <resource-ref-mapping name="jdbc/DB" location="oraclePool" />
            </session-deployment>
            <session-deployment name="BillingSessionBean" max-instances="10" location="BillingSessionBean" >
                  <resource-ref-mapping name="jdbc/DB" location="oraclePool" />
            </session-deployment>
            <session-deployment name="BookingSessionBean" max-instances="10" location="BookingSessionBean" >
                  <resource-ref-mapping name="jdbc/DB" location="oraclePool" />
            </session-deployment>
            <session-deployment name="BreakBulkSessionBean" max-instances="10" location="BreakBulkSessionBean" >
                  <resource-ref-mapping name="jdbc/DB" location="oraclePool" />
            </session-deployment>
            <session-deployment name="ProfilesSessionBean" max-instances="10" location="ProfilesSessionBean" >
                  <resource-ref-mapping name="jdbc/DB" location="oraclePool" />
            </session-deployment>
            <session-deployment name="ConsoleSessionBean" max-instances="10" location="ConsoleSessionBean" >
                  <resource-ref-mapping name="jdbc/DB" location="oraclePool" />
            </session-deployment>
            <session-deployment name="HBLSessionBean" max-instances="10" location="HBLSessionBean" >
                  <resource-ref-mapping name="jdbc/DB" location="oraclePool" />
            </session-deployment>
            <session-deployment name="ETSReportsSessionBean" max-instances="10" location="ETSReportsSessionBean" >
                  <resource-ref-mapping name="jdbc/DB" location="oraclePool" />
            </session-deployment>
            <session-deployment name="CustomerSessionBean" max-instances="10" location="CustomerSessionBean" >
                  <resource-ref-mapping name="jdbc/DB" location="oraclePool" />
            </session-deployment>
            <session-deployment name="VendorSessionBean" max-instances="10" location="VendorSessionBean" >
                  <resource-ref-mapping name="jdbc/DB" location="oraclePool" />
            </session-deployment>
            <session-deployment name="HouseDocumentSessionBean" max-instances="10" location="HouseDocumentSessionBean" >
                  <resource-ref-mapping name="jdbc/DB" location="oraclePool" />
            </session-deployment>
            <session-deployment name="MAWBSessionBean" max-instances="10" location="MAWBSessionBean" >
                  <resource-ref-mapping name="jdbc/DB" location="oraclePool" />
            </session-deployment>
            <session-deployment name="ETAReportsSessionBean" max-instances="10" location="ETAReportsSessionBean" >
                  <resource-ref-mapping name="jdbc/DB" location="oraclePool" />
            </session-deployment>
            <session-deployment name="ETUtilitiesSessionBean" max-instances="10" location="ETUtilitiesSessionBean" >
                  <resource-ref-mapping name="jdbc/DB" location="oraclePool" />
            </session-deployment>
            <session-deployment name="ETOperationUtilitiesSessionBean" max-instances="10" location="ETOperationUtilitiesSessionBean" >
                  <resource-ref-mapping name="jdbc/DB" location="oraclePool" />
            </session-deployment>
            <session-deployment name="HouseSessionBean" max-instances="10" location="HouseSessionBean" >
                  <resource-ref-mapping name="jdbc/DB" location="oraclePool" />
            </session-deployment>
            <entity-deployment name="QuoteBean" max-instances="10" location="QuoteBean" >
                  <resource-ref-mapping name="jdbc/DB" location="oraclePool" />
            </entity-deployment>
            <entity-deployment name="OceanTariffBean" max-instances="10" location="OceanTariffBean" >
                  <resource-ref-mapping name="jdbc/DB" location="oraclePool" />
            </entity-deployment>
            <entity-deployment name="RoleMasterBean" max-instances="10" location="RoleMasterBean" >
                  <resource-ref-mapping name="jdbc/DB" location="oraclePool" />
            </entity-deployment>
            <entity-deployment name="UserMasterBean" max-instances="10" location="UserMasterBean" >
                  <resource-ref-mapping name="jdbc/DB" location="oraclePool" />
            </entity-deployment>
            <entity-deployment name="ConsoleEntityBean" max-instances="10" location="ConsoleEntityBean" >
                  <resource-ref-mapping name="jdbc/DB" location="oraclePool" />
            </entity-deployment>
            <entity-deployment name="HAWBEntityBean" max-instances="10" location="HAWBEntityBean" >
                  <resource-ref-mapping name="jdbc/DB" location="oraclePool" />
            </entity-deployment>
            <entity-deployment name="MAWBEntityBean" max-instances="10" location="MAWBEntityBean" >
                  <resource-ref-mapping name="jdbc/DB" location="oraclePool" />
            </entity-deployment>
            <entity-deployment name="HBLEntityBean" max-instances="10" location="HBLEntityBean" >
                  <resource-ref-mapping name="jdbc/DB" location="oraclePool" />
            </entity-deployment>
            <entity-deployment name="HouseEntityBean" max-instances="10" location="HouseEntityBean" >
                  <resource-ref-mapping name="jdbc/DB" location="oraclePool" />
            </entity-deployment>
            <entity-deployment name="BookingEntityBean" max-instances="10" location="BookingEntityBean" >
                  <resource-ref-mapping name="jdbc/DB" location="oraclePool" />
            </entity-deployment>
            <entity-deployment name="CustomerBean" max-instances="10" location="CustomerBean" >
                  <resource-ref-mapping name="jdbc/DB" location="oraclePool" />
            </entity-deployment>
            <entity-deployment name="VendorBean" max-instances="10" location="VendorBean" >
                  <resource-ref-mapping name="jdbc/DB" location="oraclePool" />
            </entity-deployment>
      </enterprise-beans>
      <assembly-descriptor>
            <default-method-access>
                  <security-role-mapping name="&lt;default-ejb-caller-role&gt;" impliesAll="true" />
            </default-method-access>
      </assembly-descriptor>
</orion-ejb-jar>

 ;i will run index.jsp from jdeveloper,this jsp will call  ejb file ;in jdeveloper on what name should i create the connection ?