build.gradle.kts

import org.jetbrains.kotlin.gradle.tasks.KotlinCompile

buildscript {
    var kotlin_version: String by extra
    kotlin_version = "1.2.30"

    repositories {
        mavenCentral()
    }
    dependencies {
        classpath(kotlinModule("gradle-plugin", kotlin_version))
    }
}

group = "com.example"
version = "1.0-SNAPSHOT"

apply {
    plugin("kotlin")
}

val kotlin_version: String by extra

repositories {
    mavenCentral()
    jcenter()
    maven {
        setUrl("https://dl.bintray.com/kotlin/exposed")
    }
    maven {
        setUrl("https://dl.bintray.com/kotlin/ktor")
    }
    maven {
        setUrl("https://dl.bintray.com/kotlin/kotlinx")
    }
}

val junitPlatformVersion: String = "1.0.2"
val junitJupiterVersion: String = "5.0.2"
val exposedVersion: String = "0.9.1"
val mysqlConnectorVersion: String = "5.1.13"

dependencies {
    compile(kotlinModule("stdlib-jdk8", kotlin_version))

    compile("mysql:mysql-connector-java:$mysqlConnectorVersion")
    compile("org.jetbrains.exposed:exposed:$exposedVersion")

    testCompile("org.junit.platform:junit-platform-runner:$junitPlatformVersion")
    testCompile("org.junit.jupiter:junit-jupiter-api:$junitJupiterVersion")
    testRuntime("org.junit.jupiter:junit-jupiter-engine:$junitJupiterVersion")
}

tasks.withType<KotlinCompile> {
    kotlinOptions.jvmTarget = "1.8"
}

CreateMonsterRepositorySql.java

import org.springframework.jdbc.core.JdbcTemplate;

import java.util.List;

public class CreateMonsterRepositorySql implements CreateMonsterRepository {

    private final JdbcTemplate jdbcTemplate;

    public CreateMonsterRepositorySql(JdbcTemplate jdbcTemplate) {
        this.jdbcTemplate = jdbcTemplate;
    }

    @Override
    public Monster findById(String id) {
        List<Monster> monsters = jdbcTemplate.query(
                "select  id, name from monster where id = ?",
                new Object[]{id},
                (rs, rowNum) -> new Monster(rs.getString("id"), rs.getString("name"))
        );

        if (monsters.isEmpty()) {
            throw new IllegalArgumentException("Monster {" + id + "} not found");
        }

        return monsters.get(0);
    }

    @Override
    public void insertMonster(Monster monster) {
        this.jdbcTemplate.update(
                "INSERT INTO monster (id, name) VALUES (?,?)",
                monster.getId(),
                monster.getName()
        );
    }
}

db.changelog.sql

--liquibase formatted sql

--changeset carolosf:BC-123
CREATE TABLE monster (db_id int unsigned auto_increment not null, id VARCHAR(255), name VARCHAR(255), primary key (db_id));
CREATE UNIQUE INDEX monster_id ON monster(id);

--rollback DROP TABLE monster;

db.changelog.xml

<?xml version="1.0" encoding="UTF-8"?>

<databaseChangeLog
        xmlns="http://www.liquibase.org/xml/ns/dbchangelog/1.9"
        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xsi:schemaLocation="http://www.liquibase.org/xml/ns/dbchangelog/1.9
         http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-1.9.xsd">

    <include file="db.changelog.sql" relativeToChangelogFile="true"/>

</databaseChangeLog>

liquibase.properties

#contexts: ${liquibase.contexts}
#changeLogFile: com/company/client/project/db.changelog.xml
#driver: ${dataSource.project.driverClass}
#url: ${dataSource.project.jdbcURL}
#username: ${dataSource.project.user}
#password: ${dataSource.project.password}
#verbose: true
#dropFirst: false

changeLogFile: /home/cfoscolos/projects/monster/src/main/resources/liquibase/db.changelog.xml
#changeLogFile: liquibase/changes.sql
driver: com.mysql.jdbc.Driver
url: jdbc:mysql://localhost:3306/monster?useUnicode=true&characterEncoding=utf-8&useSSL=false
username: root
password: example
verbose: true
dropFirst: false

pom.xml

  <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <java.version>1.8</java.version>
        <junit.version>4.12</junit.version>
        <junit.jupiter.version>5.0.0</junit.jupiter.version>
        <junit.vintage.version>${junit.version}.0</junit.vintage.version>
        <junit.jupiter.version>5.0.0</junit.jupiter.version>
        <junit.platform.version>1.0.0</junit.platform.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.junit.jupiter</groupId>
            <artifactId>junit-jupiter-engine</artifactId>
            <version>${junit.jupiter.version}</version>
            <scope>test</scope>
        </dependency>
        <!-- To run tests on Intellij -->
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>${junit.version}</version>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.junit.platform</groupId>
            <artifactId>junit-platform-runner</artifactId>
            <version>${junit.platform.version}</version>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.junit.vintage</groupId>
            <artifactId>junit-vintage-engine</artifactId>
            <version>${junit.vintage.version}</version>
            <scope>test</scope>
        </dependency>
    </dependencies>

pom2.xml

    <build>
        <plugins>
            <plugin>
                <groupId>org.liquibase</groupId>
                <artifactId>liquibase-maven-plugin</artifactId>
                <version>3.5.5</version>
                <configuration>
                    <propertyFile>src/main/resources/liquibase/liquibase.properties</propertyFile>
                </configuration>
                <executions>
                    <execution>
                        <phase>process-resources</phase>
                        <goals>
                            <goal>update</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>

pom3.xml

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.0.0.RELEASE</version>
    </parent>


        <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>

test.java

        DriverManagerDataSource dataSource = new DriverManagerDataSource();
        dataSource.setDriverClassName("com.mysql.jdbc.Driver");
        dataSource.setUrl("jdbc:mysql://localhost:3306/monster?useUnicode=true&characterEncoding=utf-8&useSSL=false");
        dataSource.setUsername("root");
        dataSource.setPassword("example");

        CreateMonsterRepository createMonsterRepository = new CreateMonsterRepositorySql(new JdbcTemplate(dataSource));