2단계 - 서비스 리팩터링

build.gradle

@@ -16,10 +16,15 @@ dependencies {
     implementation 'org.springframework.boot:spring-boot-starter-actuator'
     implementation 'org.springframework.boot:spring-boot-starter-jdbc'
     implementation 'org.springframework.boot:spring-boot-starter-web'
+    implementation 'org.springframework.boot:spring-boot-starter-data-jpa'
     implementation 'org.flywaydb:flyway-core'
     implementation 'org.projectlombok:lombok:1.18.16'
     runtimeOnly 'com.h2database:h2'
     testImplementation 'org.springframework.boot:spring-boot-starter-test'
+
+    //guava
+    compile group: 'com.google.guava', name: 'guava', version: '30.1-jre'
+
 }
 
 test {