Spring Boot with JNDI Data Source

Question

I have a new Spring Boot web application that I want to connect to a JNDI data source (a MySQL database defined in Tomcat's context.xml).

However when I attempt this, I always get the following exception;

org.springframework.beans.factory.BeanCreationException: Cannot determine embedded database url for database type NONE. If you want an embedded database please put a supported on on the classpath.

This is despite my pom.xml containing the MySQL connector

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>

<groupId>org.test</groupId>
<artifactId>twojndi</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>

<name>Two JNDI Data Sources</name>
<description>Two JNDI Data Sources Example</description>

<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>1.1.8.RELEASE</version>
    <relativePath /> <!-- lookup parent from repository -->
</parent>

<dependencies>
    <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-data-jpa</artifactId>
        <exclusions>
            <exclusion>
                <groupId>org.hibernate</groupId>
                <artifactId>hibernate-entitymanager</artifactId>
            </exclusion>
            <exclusion>
                <artifactId>tomcat-jdbc</artifactId>
                <groupId>org.apache.tomcat</groupId>
            </exclusion>
        </exclusions>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-tomcat</artifactId>
        <scope>provided</scope>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-test</artifactId>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-entitymanager</artifactId>
    </dependency>
</dependencies>

<properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <start-class>org.test.twojndi.Application</start-class>
    <java.version>1.7</java.version>
</properties>

<build>
    <finalName>${artifactId}</finalName>
    <plugins>
        <plugin>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-maven-plugin</artifactId>
        </plugin>
    </plugins>
</build>

</project>

I have defined my application.properties as follows to use the jndi-name property.

spring.datasource.jndi-name=java:comp/env/jdbc/twojndi_ds1
spring.datasource.driverClassName=com.mysql.jdbc.Driver
spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.MySQL5Dialect

However despite that it seems Spring believes that an in-memory database should be used.

I am able to connect to the MySQL database if I define my application.properties as so

spring.datasource.url=jdbc:mysql://localhost:3306/twojndi_ds1
spring.datasource.username=twojndi
spring.datasource.password=twojndi
spring.datasource.driverClassName=com.mysql.jdbc.Driver
spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.MySQL5Dialect

Can anyone help me connect to JNDI with Spring Boot?

Answer 1

As commented by M. Deinum, JDNI lookup is implemented in Spring Boot 1.2, current version is 1.2.0.M2.

If you want to do it with Spring Boot 1.1, you can define a bean like this:

@Bean
public DataSource dataSource() {
    JndiObjectFactoryBean jndiObjectFactoryBean = new JndiObjectFactoryBean();
    jndiObjectFactoryBean.setJndiName("jdbc/jndidatasource");
    try {
        jndiObjectFactoryBean.afterPropertiesSet();
    } catch (NamingException e) {
        LOGGER.error("Error while retrieving datasource with JNDI name jdbc/jndidatasource", e);
    }
    return (DataSource) jndiObjectFactoryBean.getObject();
}