Ce binding a été créé pour le cas d'une appli Spring-Boot, Spring-security, se lançant dans un Websphere 8.5.5.

Bean de configuration de l'application récupérant les variables JNDI

import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.PropertySource;
import org.springframework.core.env.Environment;

/**
 * The Spring configuration for the application.
 */
@Configuration
@PropertySource(
        encoding = "UTF-8",
        value = "classpath:application.properties"
)
public class ApplicationConfig extends SpringConfig {

    private static final Logger LOGGER = LoggerFactory.getLogger(ApplicationConfig.class.getCanonicalName());

    private static final String JAVA_COMP_ENV = "java:comp/env";

    private static final String PATH_STORAGE_FOLDER = "path/toto";

    private static final String URL_SERVICE_URL = "url/ServiceUrl";

    private static final String MY_DATASOURCE_JNDI_NAME = "my.datasource.jndi.name";

    /**
     * Load the configuration.
     *
     * @param environment the Spring environment.
     */
    public ApplicationConfig(Environment environment) {
        super(environment);
    }

    /**
     * My database datasource.
     *
     * @return the datasource JNDI name.
     */
    @Bean
    public String myDatasourceJndiName() {
        LOGGER.info("Database JNDI name set to {}", super.getProperty(MY_DATASOURCE_JNDI_NAME, String.class));
        return super.getProperty(MY_DATASOURCE_JNDI_NAME, String.class);
    }

    /**
     * Return the JNDI value associated a simple string.
     */
    @Bean
    public String theNameOfMyBean() {
        LOGGER.info("Lonading simple string JNDI variable");

        String jndiFoundPath = null;
        try {
            Context envEntryContext = (Context) new InitialContext().lookup(JAVA_COMP_ENV);

            String jndiFoundVariable = (String) envEntryContext.lookup(PATH_STORAGE_FOLDER);
            LOGGER.info("Binding JNDI {} gave {}", PATH_STORAGE_FOLDER, jndiFoundVariable);
            return jndiFoundVariable;
        } catch (NamingException e) {
            LOGGER.info("Binding JNDI {} gave null (Naming exception).", PATH_STORAGE_FOLDER);
            LOGGER.trace("raised error", e);
            //Here you can default value or throw exception
        }
        LOGGER.info("Binding JNDI Bel storage folder path gave {}", jndiFoundPath);

        if (jndiFoundPath == null || "".equals(jndiFoundPath)) {
            LOGGER.info("Binding JNDI Bel storage folder path gave null.");
            //Here you can default value or throw exception
        }
        return jndiFoundPath;
    }

    /**
     * Return the JNDI value associated a URL.
     */
    @Bean
    public String servicesUrl() {
        LOGGER.info("Lonading service URL JNDI variable");

        String jndiFoundPath = null;
        try {
            Context envEntryContext = (Context) new InitialContext().lookup(JAVA_COMP_ENV);

            URL jndiFoundUrl = (URL) envEntryContext.lookup(URL_SERVICE_URL);
            LOGGER.info("Binding JNDI service url gave {}", jndiFoundUrl);
            jndiFoundPath = jndiFoundUrl.toString();

        } catch (NamingException e) {
            LOGGER.info("Binding JNDI ws url gave null.");
            LOGGER.trace("raised error", e);
            //Here you can default value or throw exception
        }

        if (jndiFoundPath == null || "".equals(jndiFoundPath)) {
            LOGGER.info("Binding JNDI Bel storage folder path gave null.");
            //Here you can default value or throw exception
        }
        return jndiFoundPath;
    }

}

Sample pour la datasource :

    /**
     * Load the Data source for the database.
     *
     * @return the data source.
     */
    @Bean
    @Primary
    public DataSource dataSource() {
        LOGGER.info("Load datasource");
        try {
            DataSource jndiDataSource = new JndiDataSourceLookup().getDataSource(this.getContext().getBean("myDatasourceJndiName", String.class));

            if (jndiDataSource == null) {
                LOGGER.info("DB - JNDI datasource returned null object - Default datasource");
                jndiDataSource = new BoneCPDataSource(this.connectionPoolConfig());
            }
            LOGGER.info("DB - JNDI datasource is OK.");
            return jndiDataSource;
        } catch (BeansException | DataSourceLookupFailureException e) {
            LOGGER.info("Error when lookup JNDI datasource => Bone-CP DataSource loaded");
            return new BoneCPDataSource(this.connectionPoolConfig());
        }
    }

Le web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         version="3.0" xmlns="http://java.sun.com/xml/ns/javaee"
         xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
         id="reviewit-poc">

    <display-name>TheNameYouWant</display-name>

    <resource-ref>
        <res-ref-name>url/ServiceUrl</res-ref-name>
        <res-type>java.net.URL</res-type>
        <res-auth>Container</res-auth>
        <res-sharing-scope>Unshareable</res-sharing-scope>
    </resource-ref>

    <resource-env-ref>
        <description>BEL Storage Folder</description>
        <resource-env-ref-name>path/toto</resource-env-ref-name>
        <resource-env-ref-type>java.lang.String</resource-env-ref-type>
    </resource-env-ref>

    <resource-ref>
        <res-ref-name>jdbc/myDatasource</res-ref-name>
        <res-type>javax.sql.DataSource</res-type>
        <res-auth>Container</res-auth>
        <res-sharing-scope>Unshareable</res-sharing-scope>
    </resource-ref>

</web-app>