Issue with application.properties file in java

Question

I am trying to fetch the database values from properties, so for the same reason I am using @PropertySource in spring, but it is throwing the FileNotFoundException

@Configuration
@EnableJpaRepositories(basePackages = {
        "com.manju.springdata.repository"
})
@EnableTransactionManagement
@EnableWebMvc
@ComponentScan(basePackages = "com.manju.springdata.*")
@PropertySource("classpath:/application.properties")
public class PersistenceContext {

    @Value("${db.driver}")
    private String dbDriver;

    @Value("${db.url}")
    private String dbURL;

    @Value("${db.username}")
    private String dbUserName;

    @Value("${db.password}")
    private String dbPassword;

    @Bean(destroyMethod = "close")
    DataSource dataSource(Environment env){
        BoneCPDataSource dataSource = new BoneCPDataSource();
        //dataSource.setDriverClass(env.getRequiredProperty("db.driver"));
        dataSource.setDriverClass(dbDriver);
        dataSource.setJdbcUrl(dbURL);
        dataSource.setUsername(dbUserName);
        dataSource.setPassword(dbPassword);
        return dataSource;
    }

    @Bean
    public static PropertySourcesPlaceholderConfigurer propertySourcesPlaceholderConfigurer() {
            return new PropertySourcesPlaceholderConfigurer();
    }
    }

My project structure is as follows,

I am getting the following error,

Caused by: java.io.FileNotFoundException: class path resource [application.properties] cannot be opened because it does not exist
        at org.springframework.core.io.ClassPathResource.getInputStream(ClassPathResource.java:172) ~[spring-core-4.2.0.RELEASE.jar:4.2.0.RELEASE]
        at org.springframework.core.io.support.EncodedResource.getInputStream(EncodedResource.java:153) ~[spring-core-4.2.0.RELEASE.jar:4.2.0.RELEASE]
        at org.springframework.core.io.support.PropertiesLoaderUtils.fillProperties(PropertiesLoaderUtils.java:98) ~[spring-core-4.2.0.RELEASE.jar:4.2.0.RELEASE]
        at org.springframework.core.io.support.PropertiesLoaderUtils.fillProperties(PropertiesLoaderUtils.java:72) ~[spring-core-4.2.0.RELEASE.jar:4.2.0.RELEASE]
        at org.springframework.core.io.support.PropertiesLoaderUtils.loadProperties(PropertiesLoaderUtils.java:58) ~[spring-core-4.2.0.RELEASE.jar:4.2.0.RELEASE]
        at org.springframework.core.io.support.ResourcePropertySource.<init>(ResourcePropertySource.java:84) ~[spring-core-4.2.0.RELEASE.jar:4.2.0.RELEASE]
        at org.springframework.context.annotation.ConfigurationClassParser.processPropertySource(ConfigurationClassParser.java:360) ~[spring-context-4.2.0.RELEASE.jar:4.2.0.RELEASE]
        at org.springframework.context.annotation.ConfigurationClassParser.doProcessConfigurationClass(ConfigurationClassParser.java:254) ~[spring-context-4.2.0.RELEASE.jar:4.2.0.RELEASE]
        at org.springframework.context.annotation.ConfigurationClassParser.processConfigurationClass(ConfigurationClassParser.java:231) ~[spring-context-4.2.0.RELEASE.jar:4.2.0.RELEASE]
        at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:198) ~[spring-context-4.2.0.RELEASE.jar:4.2.0.RELEASE]
        at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:167) ~[spring-context-4.2.0.RELEASE.jar:4.2.0.RELEASE]
        ... 57 common frames omitted

How do I access my properties file values, what's wrong with my code? Any suggestions

Answer 1

The problem is with your folder structure. The resource folder should be under main, not java. Look at this for default structure of maven project. Either move the resource folder or change value to classpath:/resources/application.properties.