Spring Boot Application not reading application.properties file when using Maven test

Question

UPDATE:

I realized a couple of things now. My application.properties file is being loaded properly because I verified via the /env path (thanks Dave) that my DB properties are being loaded. The problem appears to be that when I run it using the Spring Boot maven plug-in,it fails to initialize my dataSource.

mvn spring-boot:run

This then causes my application to blow-up with errors because other beans can't get initialized. The odd thing is it runs fine from Eclipse.

I have a class called DataService that extends JdbcTemplate. In my DataService constructor, I inject the Datasource.

@Component public class DataService extends JdbcTemplate  {      @Autowired     public DataService(DataSource dataSource){         super(dataSource);     }     ...more custom methods } 

I use this DataService class in other beans to perform DB operations. My DataSource is defined in my application.properties file

spring.datasource.url: jdbc:h2:tcp://localhost/~/testdb2 spring.datasource.driverClassName: org.h2.Driver 

This is my Application.java class

@Configuration @ComponentScan @EnableAutoConfiguration @EnableWebMvcSecurity @EnableAsync @EnableScheduling public class Application {      public static void main(String[] args) {         SpringApplication.run(Application.class, args);     }     } 

I first realized this when I was attempting to run jUnit tests from Maven using

mavent test 

I thought it just had to do with how it was executing the junit test cases however it is also occurring when I simple try to run the application using maven.

My JUnit4 test class is defined as follows:

@RunWith(SpringJUnit4ClassRunner.class) @SpringApplicationConfiguration(classes={Application.class}) @WebAppConfiguration public class QuestionRepositoryIntegrationTests {      ...methods } 

I used the example from the Spring Boot how-to docs (http://projects.spring.io/spring-boot/docs/docs/howto.html)

When I run this JUnit class from Eclipse, it works just fine. When it executes from maven, it starts to act up as I described above.

Answer 1

Try to define the <resources> tag in the build section in your pom, setting path for resource directory where is application.properties:

<build>         <resources>             <resource>                 <directory>resources</directory>                 <targetPath>${project.build.outputDirectory}</targetPath>                 <includes>                     <include>application.properties</include>                 </includes>             </resource>         </resources> </build> 

Answer 2

You can configure your main datasource as the following, I'm using mysql here. But you can use your own datasource. you can configure the following in your application.properties inside src/main/resources

spring.datasource.url = jdbc:mysql://localhost:3306/dsm spring.datasource.username = root spring.datasource.password = admin123 spring.datasource.testWhileIdle = true spring.datasource.validationQuery = SELECT 1  spring.jpa.show-sql = true spring.jpa.hibernate.ddl-auto = update spring.jpa.hibernate.naming-strategy = org.hibernate.cfg.ImprovedNamingStrategy  spring.jpa.properties.hibernate.dialect = org.hibernate.dialect.MySQL5Dialect 

to run test inside your application you can either use the same datasource or create application-test.properties inside src/test/resources and its possible to configure test data source over there.