Developing Java Applications with Spring and Spring Boot

How to do it...

1. Create the file named StartupRunner.java under the src/main/java/com/example/bookpub/ directory from the root of our project with the following content:

        package com.example.bookpub;         import com.example.bookpub.repository.BookRepository;
        import org.apache.commons.logging.Log; 
        import org.apache.commons.logging.LogFactory;         import org.springframework.beans.factory.annotation.Autowired;
        import org.springframework.boot.CommandLineRunner;         import org.springframework.scheduling.annotation.Scheduled;        public class StartupRunner implements CommandLineRunner { 
            protected final Log logger = LogFactory.getLog(getClass()); 
            @Override 
            public void run(String... args) throws Exception { 
                logger.info("Hello"); 
            }         }

2. After we have defined the ...