CODEWITHSUNDEEP
javaspringspring-mvcspring-boot
patb23
patb23

Reputation: 397

Spring Boot Datasource annotated with ConfigurationProperties but the properties are not loaded

I am trying to wire datasource to get properties from application(yml) file but the Datasourcebuilder is not reading those properties. I referred Stackoverflow as well as Spring Boot docs but could not see anything missing in my code. I am pasting the code below that uses Spring Boot 1.4.3.RELEASE

@SpringBootApplication
@EnableConfigurationProperties
@ComponentScan

public class MyApplication {
@Bean(name="dmDs")
@Primary
@ConfigurationProperties("spring.datasource")
public  DataSource dmDataSource(){
    return DataSourceBuilder.create().build();
}
@Bean
public String aBean(){
    DataSource ds = dmDataSource(); // creates a datasource with URL, username and password empty.
    return new String("");
}

The application config file is as shown below:

spring:
  autoconfigure:
    exclude:
      - org.springframework.boot.autoconfigure.liquibase.LiquibaseAutoConfiguration
      - org.springframework.boot.autoconfigure.orm.jpa.HibernateJpaAutoConfiguration
      - org.springframework.boot.autoconfigure.jms.JndiConnectionFactoryAutoConfiguration
      - org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration
  profiles:
    active: test
---

spring:
    profiles: test
    datasource:
          url: jdbc:oracle:thin:SOME_URL
          driver-class-name: oracle.jdbc.OracleDriver
          password: test
          username: test
datacollector:
  datasource:
    driver-class-name: oracle.jdbc.OracleDriver
    url: jdbc:oracle:thin:@SOME_URL
    username: user
    password: pass

I see in the logs that the properties are read from the application.yml file

[main] o.s.c.e.PropertySourcesPropertyResolver  : Found key 'spring.datasource.url' in [applicationConfig: [classpath:/application.yml]] with type [String]              
[main] o.s.c.e.PropertySourcesPropertyResolver  : Found key 'spring.datasource.driver-class-name' in [applicationConfig: [classpath:/application.yml]] with type [String]
[main] o.s.c.e.PropertySourcesPropertyResolver  : Found key 'spring.datasource.password' in [applicationConfig: [classpath:/application.yml]] with type [String]         
[main] o.s.c.e.PropertySourcesPropertyResolver  : Found key 'spring.datasource.username' in [applicationConfig: [classpath:/application.yml]] with type [String]         
   JdbcTemplateAutoConfiguration matched:
      - @ConditionalOnClass found required classes 'javax.sql.DataSource', 'org.springframework.jdbc.core.JdbcTemplate' (OnClassCondition)
      - @ConditionalOnSingleCandidate (types: javax.sql.DataSource; SearchStrategy: all) found a primary bean from beans 'cipDs', 'dmDs' (OnBeanCondition)

I am running the application as shown below:

public static void main(String[] args){

SpringApplication.run(new Object[]{DecisionManagementApplication.class,ApplicationConfig.class}, args);

}

Upvotes: 2

Views: 4026

Answers (1)

alfcope
alfcope

Reputation: 2427

If you want to use the bean Spring has created within its container you need to inject it, you can not use "new".

Try:

@Bean
@Autowired
public String aBean(final DataSource  myDS)
{
    return new String("Check myDS properties now");
}

Upvotes: 0

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