[spring boot 개발] spring boot에서 mysql에 table 생성하기

DatabaseConfig 코드

import org.springframework.boot.jdbc.DataSourceBuilder;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import javax.sql.DataSource;

@Configuration
public class DetabaseConfig {
    @Bean
    public DataSource dataSource() {
        DataSourceBuilder dataSourceBuilder = DataSourceBuilder.create();
        dataSourceBuilder.driverClassName("com.mysql.cj.jdbc.Driver");
        dataSourceBuilder.username("root");
        dataSourceBuilder.password("");
        dataSourceBuilder.url("jdbc:mysql://localhost:3306/DB이름?serverTimezone=Asia/Seoul&useUnicode=true&characterEncoding=UTF-8");

        return dataSourceBuilder.build();
    }
}

User Model 코드

import lombok.*;
import javax.persistence.*;

@Setter
@Getter
@NoArgsConstructor(access= AccessLevel.PROTECTED)
@Table(name="user")
@Entity
public class User {

    @Id
    @GeneratedValue(strategy= GenerationType.IDENTITY)    // 프로젝트에 연결된 DB의 numbering 전략을 따른다.
    private int id;    // 시퀀스, auto_increment

    @Column(nullable=false, length=30)
    private String username;

    @Column(nullable=false, length=100)
    private String password;

    @Builder
    public User(int id, String username, String password) {
        this.id=id;
        this.username=username;
        this.password=password;
    }
}

application.yml

server:
  port: 8080

spring:
  application:
    name: springbootstart

  datasource:
    url: jdbc:mysql://localhost:3306/DB이름?serverTimezone=Asia/Seoul&useUnicode=true&characterEncoding=UTF-8
    username: root
    password: 

  jpa:
    show-sql: true
    hibernate:
      ddl-auto: update
    properties:
      dialect: org.hibernate.dialect.MySQL5InnoDBDialect

build.gradle 코드

dependencies {
	implementation 'org.springframework.boot:spring-boot-starter'
	testImplementation 'org.springframework.boot:spring-boot-starter-test'

	implementation 'org.springframework.boot:spring-boot-starter-web'

	// Entity 사용 가능하게 하는 거
	implementation 'org.springframework.boot:spring-boot-starter-data-jpa'
	compileOnly 'org.projectlombok:lombok'
	annotationProcessor 'org.projectlombok:lombok'
	runtimeOnly 'mysql:mysql-connector-java'
}

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