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Merge pull request #20 from codej99/cache-data-redis
Cache data redis
2 parents bdd09ee + f7901cb commit 8cecd7e

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16 files changed

+310
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‎README.md‎

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@@ -115,3 +115,8 @@ alter table user_roles
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- https://daddyprogrammer.org/post/2695/springboot2-simple-jpa-board/
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- Git
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- https://github.com/codej99/SpringRestApi/tree/feature/board
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- SpringBoot2로 Rest api 만들기(15) – Redis로 api 결과 캐싱(Caching)처리
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- Document
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- https://daddyprogrammer.org/post/3870/spring-rest-api-redis-caching/
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- Git
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- https://github.com/codej99/SpringRestApi/tree/cache-data-redis

‎build.gradle‎

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@@ -26,6 +26,9 @@ dependencies {
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implementation 'org.springframework.boot:spring-boot-starter-web'
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implementation 'org.springframework.boot:spring-boot-starter-security'
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implementation 'org.springframework.boot:spring-boot-starter-actuator'
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implementation 'org.springframework.boot:spring-boot-starter-data-redis'
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//embedded-redis
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implementation 'it.ozimov:embedded-redis:0.7.2'
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implementation 'io.jsonwebtoken:jjwt:0.9.1'
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implementation 'io.springfox:springfox-swagger2:2.6.1'
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implementation 'io.springfox:springfox-swagger-ui:2.6.1'

‎src/main/java/com/rest/api/common/CacheKey.java‎

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package com.rest.api.common;
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public class CacheKey {
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public static final int DEFAULT_EXPIRE_SEC = 60; // 1 minutes
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public static final String USER = "user";
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public static final int USER_EXPIRE_SEC = 60 * 5; // 5 minutes
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public static final String BOARD = "board";
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public static final int BOARD_EXPIRE_SEC = 60 * 10; // 10 minutes
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public static final String POST = "post";
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public static final String POSTS = "posts";
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public static final int POST_EXPIRE_SEC = 60 * 5; // 5 minutes
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}

‎src/main/java/com/rest/api/config/EmbeddedRedisConfig.java‎

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package com.rest.api.config;
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import org.springframework.beans.factory.annotation.Value;
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import org.springframework.context.annotation.Configuration;
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import org.springframework.context.annotation.Profile;
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import redis.embedded.RedisServer;
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import javax.annotation.PostConstruct;
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import javax.annotation.PreDestroy;
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/**
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* 로컬 환경일경우 내장 레디스가 실행된다.
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*/
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@Profile("local")
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@Configuration
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public class EmbeddedRedisConfig {
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@Value("${spring.redis.port}")
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private int redisPort;
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private RedisServer redisServer;
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@PostConstruct
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public void redisServer() {
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redisServer = new RedisServer(redisPort);
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redisServer.start();
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}
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@PreDestroy
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public void stopRedis() {
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if (redisServer != null) {
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redisServer.stop();
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}
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}
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}

‎src/main/java/com/rest/api/config/RedisConfig.java‎

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package com.rest.api.config;
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import com.rest.api.common.CacheKey;
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import lombok.RequiredArgsConstructor;
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import org.springframework.cache.annotation.EnableCaching;
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import org.springframework.context.annotation.Bean;
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import org.springframework.context.annotation.Configuration;
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import org.springframework.data.redis.cache.CacheKeyPrefix;
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import org.springframework.data.redis.cache.RedisCacheConfiguration;
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import org.springframework.data.redis.cache.RedisCacheManager;
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import org.springframework.data.redis.connection.RedisConnectionFactory;
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import org.springframework.data.redis.core.RedisTemplate;
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import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;
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import org.springframework.data.redis.serializer.RedisSerializationContext;
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import org.springframework.data.redis.serializer.StringRedisSerializer;
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import java.time.Duration;
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import java.util.HashMap;
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import java.util.Map;
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@RequiredArgsConstructor
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@EnableCaching
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@Configuration
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public class RedisConfig {
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@Bean(name = "cacheManager")
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public RedisCacheManager cacheManager(RedisConnectionFactory connectionFactory) {
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RedisCacheConfiguration configuration = RedisCacheConfiguration.defaultCacheConfig()
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.disableCachingNullValues()
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.entryTtl(Duration.ofSeconds(CacheKey.DEFAULT_EXPIRE_SEC))
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.computePrefixWith(CacheKeyPrefix.simple())
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.serializeKeysWith(RedisSerializationContext.SerializationPair.fromSerializer(new StringRedisSerializer()));
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Map<String, RedisCacheConfiguration> cacheConfigurations = new HashMap<>();
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// 캐시 default 유효시간 설정
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cacheConfigurations.put(CacheKey.USER, RedisCacheConfiguration.defaultCacheConfig()
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.entryTtl(Duration.ofSeconds(CacheKey.USER_EXPIRE_SEC)));
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cacheConfigurations.put(CacheKey.BOARD, RedisCacheConfiguration.defaultCacheConfig()
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.entryTtl(Duration.ofSeconds(CacheKey.BOARD_EXPIRE_SEC)));
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cacheConfigurations.put(CacheKey.POST, RedisCacheConfiguration.defaultCacheConfig()
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.entryTtl(Duration.ofSeconds(CacheKey.POST_EXPIRE_SEC)));
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cacheConfigurations.put(CacheKey.POSTS, RedisCacheConfiguration.defaultCacheConfig()
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.entryTtl(Duration.ofSeconds(CacheKey.POST_EXPIRE_SEC)));
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return RedisCacheManager.RedisCacheManagerBuilder.fromConnectionFactory(connectionFactory).cacheDefaults(configuration)
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.withInitialCacheConfigurations(cacheConfigurations).build();
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}
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}

‎src/main/java/com/rest/api/entity/User.java‎

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import com.fasterxml.jackson.annotation.JsonProperty;
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import com.rest.api.entity.common.CommonDateEntity;
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import lombok.*;
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import org.hibernate.annotations.Proxy;
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import org.springframework.security.core.GrantedAuthority;
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import org.springframework.security.core.authority.SimpleGrantedAuthority;
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import org.springframework.security.core.userdetails.UserDetails;
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@AllArgsConstructor // 인자를 모두 갖춘 생성자를 자동으로 생성합니다.
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@Table(name = "user") // 'user' 테이블과 매핑됨을 명시
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@JsonIgnoreProperties({"hibernateLazyInitializer", "handler"}) // Post Entity에서 User와의 관계를 Json으로 변환시 오류 방지를 위한 코드
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@Proxy(lazy = false)
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public class User extends CommonDateEntity implements UserDetails {
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@Id // pk
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@GeneratedValue(strategy = GenerationType.IDENTITY)

‎src/main/java/com/rest/api/entity/board/Board.java‎

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import lombok.NoArgsConstructor;
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import javax.persistence.*;
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import java.io.Serializable;
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@Entity
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@Getter
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@NoArgsConstructor
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public class Board extends CommonDateEntity {
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public class Board extends CommonDateEntity implements Serializable {
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@Id
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@GeneratedValue(strategy = GenerationType.IDENTITY)
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private Long boardId;

‎src/main/java/com/rest/api/entity/board/Post.java‎

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package com.rest.api.entity.board;
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import com.fasterxml.jackson.annotation.JsonIgnore;
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import com.rest.api.entity.User;
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import com.rest.api.entity.common.CommonDateEntity;
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import lombok.Getter;
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import lombok.NoArgsConstructor;
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import lombok.Setter;
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import org.hibernate.annotations.Proxy;
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import javax.persistence.*;
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import java.io.Serializable;
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@Entity
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@Getter
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@Setter
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@NoArgsConstructor
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public class Post extends CommonDateEntity {
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public class Post extends CommonDateEntity implements Serializable {
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@Id
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@GeneratedValue(strategy = GenerationType.IDENTITY)
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private Long postId;
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@JoinColumn(name = "board_id")
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private Board board; // 게시글 - 게시판의 관계 - N:1
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@ManyToOne(fetch = FetchType.LAZY)
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@JoinColumn(name = "msrl")
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private User user; // 게시글 - 회원의 관계 - N:1
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// Join 테이블이 Json결과에 표시되지 않도록 처리.
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protected Board getBoard() {
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@JsonIgnore
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public Board getBoard() {
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return board;
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}
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‎src/main/java/com/rest/api/service/board/BoardService.java‎

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import com.rest.api.advice.exception.CNotOwnerException;
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import com.rest.api.advice.exception.CResourceNotExistException;
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import com.rest.api.advice.exception.CUserNotFoundException;
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import com.rest.api.common.CacheKey;
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import com.rest.api.entity.User;
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import com.rest.api.entity.board.Board;
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import com.rest.api.entity.board.Post;
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import com.rest.api.model.board.ParamsPost;
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import com.rest.api.repo.UserJpaRepo;
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import com.rest.api.repo.board.BoardJpaRepo;
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import com.rest.api.repo.board.PostJpaRepo;
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import com.rest.api.service.cache.CacheSevice;
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import lombok.RequiredArgsConstructor;
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import lombok.extern.slf4j.Slf4j;
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import org.springframework.cache.annotation.CacheEvict;
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import org.springframework.cache.annotation.CachePut;
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import org.springframework.cache.annotation.Cacheable;
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import org.springframework.stereotype.Service;
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import javax.transaction.Transactional;
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import java.util.List;
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import java.util.Optional;
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@Slf4j
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@Service
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@Transactional
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@RequiredArgsConstructor
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private final BoardJpaRepo boardJpaRepo;
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private final PostJpaRepo postJpaRepo;
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private final UserJpaRepo userJpaRepo;
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private final CacheSevice cacheSevice;
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// 게시판 이름으로 게시판을 조회. 없을경우 CResourceNotExistException 처리
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@Cacheable(value = CacheKey.BOARD, key = "#boardName", unless = "#result == null")
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public Board findBoard(String boardName) {
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return Optional.ofNullable(boardJpaRepo.findByName(boardName)).orElseThrow(CResourceNotExistException::new);
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}
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// 게시판 이름으로 게시물 리스트 조회.
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// 게시판 이름으로 게시글 리스트 조회.
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@Cacheable(value = CacheKey.POSTS, key = "#boardName", unless = "#result == null")
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public List<Post> findPosts(String boardName) {
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return postJpaRepo.findByBoard(findBoard(boardName));
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}
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// 게시물ID로 게시물 단건 조회. 없을경우 CResourceNotExistException 처리
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// 게시글ID로 게시글 단건 조회. 없을경우 CResourceNotExistException 처리
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@Cacheable(value = CacheKey.POST, key = "#postId", unless = "#result == null")
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public Post getPost(long postId) {
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return postJpaRepo.findById(postId).orElseThrow(CResourceNotExistException::new);
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}
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// 게시물을 등록합니다. 게시물의 회원UID가 조회되지 않으면 CUserNotFoundException 처리합니다.
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// 게시글을 등록합니다. 게시글의 회원UID가 조회되지 않으면 CUserNotFoundException 처리합니다.
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@CacheEvict(value = CacheKey.POSTS, key = "#boardName")
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public Post writePost(String uid, String boardName, ParamsPost paramsPost) {
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Board board = findBoard(boardName);
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Post post = new Post(userJpaRepo.findByUid(uid).orElseThrow(CUserNotFoundException::new), board, paramsPost.getAuthor(), paramsPost.getTitle(), paramsPost.getContent());
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return postJpaRepo.save(post);
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}
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// 게시물을 수정합니다. 게시물 등록자와 로그인 회원정보가 틀리면 CNotOwnerException 처리합니다.
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// 게시글을 수정합니다. 게시글 등록자와 로그인 회원정보가 틀리면 CNotOwnerException 처리합니다.
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//@CachePut(value = CacheKey.POST, key = "#postId") 갱신된 정보만 캐시할경우에만 사용!
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public Post updatePost(long postId, String uid, ParamsPost paramsPost) {
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Post post = getPost(postId);
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User user = post.getUser();
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// 영속성 컨텍스트의 변경감지(dirty checking) 기능에 의해 조회한 Post내용을 변경만 해도 Update쿼리가 실행됩니다.
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post.setUpdate(paramsPost.getAuthor(), paramsPost.getTitle(), paramsPost.getContent());
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cacheSevice.deleteBoardCache(post.getPostId(), post.getBoard().getName());
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return post;
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}
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// 게시물을 삭제합니다. 게시물 등록자와 로그인 회원정보가 틀리면 CNotOwnerException 처리합니다.
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// 게시글을 삭제합니다. 게시글 등록자와 로그인 회원정보가 틀리면 CNotOwnerException 처리합니다.
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public boolean deletePost(long postId, String uid) {
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Post post = getPost(postId);
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User user = post.getUser();
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if (!uid.equals(user.getUid()))
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throw new CNotOwnerException();
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postJpaRepo.delete(post);
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cacheSevice.deleteBoardCache(post.getPostId(), post.getBoard().getName());
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return true;
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}
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}

‎src/main/java/com/rest/api/service/cache/CacheSevice.java‎

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package com.rest.api.service.cache;
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import com.rest.api.common.CacheKey;
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import lombok.extern.slf4j.Slf4j;
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import org.springframework.cache.annotation.CacheEvict;
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import org.springframework.cache.annotation.Caching;
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import org.springframework.stereotype.Service;
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@Slf4j
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@Service
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public class CacheSevice {
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@Caching(evict = {
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@CacheEvict(value = CacheKey.POST, key = "#postId"),
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@CacheEvict(value = CacheKey.POSTS, key = "#boardName")
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})
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public boolean deleteBoardCache(long postId, String boardName) {
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log.debug("deleteBoardCache - postId {}, boardName {}", postId, boardName);
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return true;
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}
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}

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