[Spring] Ehcache 사용

개발환경

Spring 5.2.7.RELEASE

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[캐쉬 서비스 동작원리]

 

기존 서비스 : Controller > Service > Dao 

캐쉬 서비스 : Controller > Service > CacheService (> Dao)

 

캐쉬를 통해 메뉴 DB 제어

 

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Dependency 추가

		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-context</artifactId>
			<version>${org.springframework-version}</version>
			<exclusions>
				<!-- Exclude Commons Logging in favor of SLF4j -->
				<exclusion>
					<groupId>commons-logging</groupId>
					<artifactId>commons-logging</artifactId>
				 </exclusion>
			</exclusions>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-context-support</artifactId>
			<version>${org.springframework-version}</version>
		</dependency>
		<dependency>
			<groupId>net.sf.ehcache</groupId>
			<artifactId>ehcache</artifactId>
			<version>2.10.6</version>
		</dependency>

 

Cache-servlet.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xmlns:cache="http://www.springframework.org/schema/cache"
	xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
    http://www.springframework.org/schema/cache http://www.springframework.org/schema/cache/spring-cache.xsd"
	xmlns:p="http://www.springframework.org/schema/p">
	<cache:annotation-driven />
	
	<!-- annotation 기반 캐시 스캔 -->
	<bean id="cacheManager"
		class="org.springframework.cache.ehcache.EhCacheCacheManager"
		p:cache-manager-ref="ehcache" />
	<bean id="ehcache"
		class="org.springframework.cache.ehcache.EhCacheManagerFactoryBean"
		p:config-location="/WEB-INF/config/ehcache.xml" p:shared="true" />
</beans>

 

ehcache.xml

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

<ehcache xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:noNamespaceSchemaLocation="ehcache.xsd" updateCheck="false"
	monitoring="autodetect" dynamicConfig="true">

	<diskStore path="java.io.tmpdir" />

	<cache name="menuCache" maxElementsInMemory="1000"
		eternal="true" overflowToDisk="false" timeToLiveSeconds="60"
		diskPersistent="false" memoryStoreEvictionPolicy="LRU" />
</ehcache>

이때 캐쉬 bean id는 CacheService.java에서 메소드에 사용될 CacheName에 대한 맵핑 설정

설정 부분 참고사이트

hyeooona825.tistory.com/86

[Spring] Ehcache 캐시 사용

 

Ehcahce에서 MenuVo Interceptor

Config 생성

src > webapp > WEB-INF > config >

  cache-servlet.xml

  ehcache.xml 

 

캐쉬서비스 생성

comm > service > CacheService.java

 

CacheServie.java

import java.util.List;

import javax.annotation.Resource;

import org.springframework.cache.annotation.Cacheable;
import org.springframework.stereotype.Service;

import com.donggyu.project.comm.dao.CommDao;
import com.donggyu.project.comm.vo.menuVo;
import com.sun.istack.internal.logging.Logger;

@Service
public class CacheService {
	@Resource(name = "commDao")
	private CommDao commDao;

	Logger log = Logger.getLogger(this.getClass());

	@SuppressWarnings("unchecked")
	@Cacheable(value="menuCache")
	public List<menuVo> sltCacheMenuList() throws Exception{

		log.info("cache start");
		List<menuVo> menuList = null;

		menuList = commDao.menuList();

		return menuList;
	}
}

 

인터셉터 PostHandel 설정

	@Override
	public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler,
			ModelAndView modelAndView) throws Exception {
		log.info("====================================== END ======================================\n");
		modelAndView.addObject(commService.sltMenuList());
		super.postHandle(request, response, handler, modelAndView);
	}

 

결과화면