byte echo 컨트롤러 추가

build.gradle

@@ -5,7 +5,6 @@ plugins {
 }
 
 ext['logback.version'] = '1.2.10'
-
 group = 'com.eactive'
 version = '1.0.1'
 sourceCompatibility = '1.8'
@@ -24,6 +23,7 @@ dependencies {
 	implementation 'nz.net.ultraq.thymeleaf:thymeleaf-layout-dialect'
 //	implementation 'com.github.darrachequesne:spring-data-jpa-datatables:5.1.0'
 	implementation 'org.apache.commons:commons-lang3:3.10'
+	implementation group: 'commons-io', name: 'commons-io', version: '2.6'
 	implementation 'com.jayway.jsonpath:json-path:2.4.0'
 	runtimeOnly 'com.h2database:h2'
 	testImplementation 'org.springframework.boot:spring-boot-starter-test'