[Java spring] Building a command-line application

pom.xml:

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-web</artifactId>
        </dependency>
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-core</artifactId>
        </dependency>
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-databind</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

 

Implement CommandLineRunner:

package com.frankmoley.boot.clr.roomclrapp;

import org.springframework.boot.CommandLineRunner;
import org.springframework.stereotype.Component;
import org.springframework.web.client.RestTemplate;

import java.util.*;

@Component
public class RoomCleaningPrimer implements CommandLineRunner {

    private RestTemplate restTemplate;

    public RoomCleaningPrimer() {
        super();
        this.restTemplate = new RestTemplate();
    }

    @Override
    public void run(String... strings) throws Exception {
        String url = "http://localhost:8080/api/rooms";
        Room[] roomArray = this.restTemplate.getForObject(url, Room[].class);
        List<Room> rooms = Arrays.asList(roomArray);
        rooms.forEach(System.out::println);
    }
}