feat: HikariCP 적용 (#38)

build.gradle

@@ -1,37 +1,41 @@
 plugins {
-	id 'org.springframework.boot' version '2.4.5'
-	id 'io.spring.dependency-management' version '1.0.11.RELEASE'
-	id 'java'
+    id 'org.springframework.boot' version '2.4.5'
+    id 'io.spring.dependency-management' version '1.0.11.RELEASE'
+    id 'java'
 }
 
 group = 'com.f-lab'
 version = '0.0.1-SNAPSHOT'
 sourceCompatibility = '11'
 
 configurations {
-
-	all {
-		// spring-boot-starter-web에있는 logging 모듈과 log4j2 충돌 방지
-		exclude group: 'org.springframework.boot', module: 'spring-boot-starter-logging'
-	}
+    
+    all {
+        // spring-boot-starter-web에있는 logging 모듈과 log4j2 충돌 방지
+        exclude group: 'org.springframework.boot', module: 'spring-boot-starter-logging'
+    }
 }
 
 repositories {
-	mavenCentral()
+    mavenCentral()
 }
 
 dependencies {
-	implementation 'org.springframework.boot:spring-boot-starter-web'
-	implementation group: 'mysql', name: 'mysql-connector-java'
-	implementation group: 'org.mybatis.spring.boot', name: 'mybatis-spring-boot-starter', version: '2.1.4'
-	implementation group: 'org.springframework.boot', name: 'spring-boot-starter-log4j2'
-	implementation group: 'org.bgee.log4jdbc-log4j2', name: 'log4jdbc-log4j2-jdbc4.1', version: '1.16'
-	implementation 'org.jetbrains:annotations:20.1.0'
-	testImplementation 'org.springframework.boot:spring-boot-starter-test'	   /* 테스트 환경 구축을 위해 추가 */
-	implementation group: 'org.springframework.boot', name: 'spring-boot-starter-validation', version: '2.4.5' /* Valid 애노테이션 통해 검증을 위해 추가 */
+    implementation 'org.springframework.boot:spring-boot-starter-web'
+    implementation group: 'mysql', name: 'mysql-connector-java'
+    implementation group: 'org.mybatis.spring.boot', name: 'mybatis-spring-boot-starter', version: '2.1.4'
+    implementation group: 'org.springframework.boot', name: 'spring-boot-starter-log4j2'
+    implementation group: 'org.bgee.log4jdbc-log4j2', name: 'log4jdbc-log4j2-jdbc4.1', version: '1.16'
+    implementation 'org.jetbrains:annotations:20.1.0'
+    testImplementation 'org.springframework.boot:spring-boot-starter-test'
+    /* 테스트 환경 구축을 위해 추가 */
+    implementation group: 'org.springframework.boot', name: 'spring-boot-starter-validation', version: '2.4.5'
+    /* Valid 애노테이션 통해 검증을 위해 추가 */
+    implementation group: 'com.zaxxer', name: 'HikariCP', version: '4.0.3'
+    /* hikari CP 커넥션 풀 사용을 위해 추가 */
 
 }
 
 test {
-	useJUnitPlatform()
+    useJUnitPlatform()
 }

src/main/java/com/flab/kidsafer/config/DatabaseConfig.java

@@ -1,11 +1,15 @@
 package com.flab.kidsafer.config;
 
+import com.zaxxer.hikari.HikariConfig;
+import com.zaxxer.hikari.HikariDataSource;
 import org.apache.ibatis.session.SqlSessionFactory;
 import org.mybatis.spring.SqlSessionFactoryBean;
 import org.mybatis.spring.SqlSessionTemplate;
 import org.mybatis.spring.annotation.MapperScan;
+import org.springframework.boot.context.properties.ConfigurationProperties;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
+import org.springframework.context.annotation.PropertySource;
 import org.springframework.core.io.support.PathMatchingResourcePatternResolver;
 import javax.sql.DataSource;
 
@@ -24,9 +28,21 @@
  */
 
 @Configuration
+@PropertySource("classpath:/application.properties")
 @MapperScan(basePackages = "com.flab.kidsafer.mapper")
 public class DatabaseConfig {
 
+    @Bean
+    @ConfigurationProperties(prefix = "spring.datasource.hikari")
+    public HikariConfig hikariConfig() {
+        return new HikariConfig();
+    }
+
+    @Bean(destroyMethod = "close")
+    public DataSource dataSource() {
+        return new HikariDataSource(hikariConfig());
+    }
+
     /*
      * SqlSessionFactory :
      *  - datasource의 정보를 참조하여 DB와 연결을 가능케하는 인터페이스입니다.

src/main/resources/application.properties

@@ -1,3 +1,5 @@
-spring.datasource.url=jdbc:mysql://localhost:3306/<디비이름>?useUnicode=true@characterEncoding=utf8&serverTimezone=Asia/Seoul
-spring.datasource.username=유저이름
-spring.datasource.password=비밀번호
+spring.datasource.hikari.driver-class-name=com.mysql.cj.jdbc.Driver
+spring.datasource.hikari.jdbc-url=jdbc:mysql://localhost:3306/localdb?useUnicode=true@characterEncoding=utf8&serverTimezone=UTC
+spring.datasource.hikari.username=kid
+spring.datasource.hikari.password=kid
+spring.datasource.hikari.pool-name=HikariPool