[FIXED] How to prevent @SpringBootScanApplications(scanbase="package") avoiding interfaces?

Issue

So I was running a Springboot application then I got this error

***************************
APPLICATION FAILED TO START
***************************

Description:

A component required a bean of type 'sample.ArticledDao' that could not be found.


Action:

Consider defining a bean of type 'sample.ArticledDao' in your configuration.

Then I checked how SpringBoot scans the files and I saw some of the files are ignored

This is how the path looks ( It's not ideal I know) :

This is the code of my Main class :

@SpringBootApplication(scanBasePackages="sample")
@EnableJpaRepositories("sample")
public class Main {


    public static void main(String[] args) throws Exception {
        SpringApplication.run(Main.class, args);
    }
}

This is my ArticlesDao class:

public interface ArticledDao {
    List<Articles> findAll();

    public void deleteArticles(Articles articles);
}

ArticleSercviceImp class

@Component
public class ArticleSericeImp implements ArticlesServices
{
    @Autowired
    ArticledDao articleDao;
    @Override
    public List<Articles> findAll() {
        return articleDao.findAll();
    }

    @Override
    public void deleteEmployee(Articles art) {
         articleDao.deleteArticles(art);
    }

ArticleRepository:

@Repository
public  class ArticlesRepository implements ArticledDao{


  public ArticlesRepository(NamedParameterJdbcTemplate template) {
        this.template = template;
    }
NamedParameterJdbcTemplate template;

    @Override
    public List<Articles> findAll() {
        return template.query("select * from article", new ArticlesRowMapper());
    }

    @Override
    public void deleteArticles(Articles articles) {
        final String sql = "delete from article where articleid=:articleid";
        Map<String,Object> map=new HashMap<String,Object>();
        map.put("articleid", articles.getId());

        template.execute(sql,map,new PreparedStatementCallback<Object>() {
            @Override
            public Object doInPreparedStatement(PreparedStatement ps)
                    throws SQLException, DataAccessException {
                return ps.executeUpdate();
            }
        });


    }



    }

<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.4.5</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.example</groupId>
    <artifactId>sprinboot_project</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>Sprinboot_Project</name>
    <description>Demo project for Spring Boot</description>
    <properties>
        <java.version>8</java.version>
    </properties>
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-jdbc</artifactId>
        </dependency>
        <dependency>
            <groupId>org.postgresql</groupId>
            <artifactId>postgresql</artifactId>
            <scope>runtime</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-jdbc</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.data</groupId>
            <artifactId>spring-data-jpa</artifactId>
            <version>2.3.0.RELEASE</version>

        </dependency>
        <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-entitymanager</artifactId>
            <version>5.4.29.Final</version>
        </dependency>
    </dependencies>


    <build>
        <pluginManagement>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <configuration>
                    <excludes>
                        <exclude>
                            <groupId>org.projectlombok</groupId>
                            <artifactId>lombok</artifactId>
                        </exclude>
                    </excludes>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.8.1</version>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                </configuration>
            </plugin>
        </plugins>
        </pluginManagement>
        <resources>
            <resource>
                <directory>src/main/resources</directory>
                <filtering>true</filtering>
            </resource>
        </resources>
    </build>

</project>

I'm new to SpringBoot so I would be very grateful for your help.

Solution

I have added the following dependency:

<dependency>
  <groupId>org.springframework.boot</groupId>
  <artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>

and removed the spring-data dependency as well (this will bring in all needed transitive dependencies like hibernate etc.).

Then you have excluded the datasource autoconfiguration in your application.properties:

spring.autoconfigure.exclude=org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration

However this auto configuration is needed to autoconfigure the JdbcTemplate, which you use in your ArticleRepository class. So you need to remove that line. With those changes i can get at least to the point where it tries to connect to Postgres (which fails in my case because i don't have a running instance).

Answered By - dunni