建网站的策划方案,德州市建设街小学网站首页,优秀国外设计网站,wordpress安装部署目录 前言
集成
maven依赖
CacheManagerConfig配置
redis配置
使用
Springboot 集成使用缓存
Cacheable
CacheEvict 前言
现有项目中经常遇到的缓存集成问题#xff0c;Springboot提供了统一的接口抽象与缓存管理器#xff0c;可集成多种缓存类型#xff0c;如 Co…目录 前言
集成
maven依赖
CacheManagerConfig配置
redis配置
使用
Springboot 集成使用缓存
Cacheable
CacheEvict 前言
现有项目中经常遇到的缓存集成问题Springboot提供了统一的接口抽象与缓存管理器可集成多种缓存类型如 ConcurrentMap 缓存、redis缓存并可以随时无缝替换底层缓存存储。 集成 maven依赖
dependencygroupIdorg.springframework.boot/groupIdartifactIdspring-boot-starter-cache/artifactId
/dependency
dependencygroupIdorg.springframework.boot/groupIdartifactIdspring-boot-starter-data-redis/artifactId
/dependency
dependencygroupIdredis.clients/groupIdartifactIdjedis/artifactIdversion3.3.0/version
/dependency
CacheManagerConfig配置
下面配置了2个一个是localCacheManager底层用的是ConcurrentMap另一个是 RedisCacheManager底层用的是redis。
通过 Primary 注解可以控制那个是主缓存。
Configuration
EnableCaching
EnableConfigurationProperties(CacheProperties.class)
public class CacheManagerConfig {public static final String CACHE_MANAGER_LOCAL localCacheManager;public static final String CACHE_MANAGER_REDIS redisCacheManager;Autowiredprivate CacheProperties cacheProperties;Bean(name CACHE_MANAGER_LOCAL)public CacheManager localCacheManager() {return new ConcurrentMapCacheManager();}PrimaryBean(name CACHE_MANAGER_REDIS)public RedisCacheManager redisCacheManager() {GenericJackson2JsonRedisSerializer genericJackson2JsonRedisSerializer new GenericJackson2JsonRedisSerializer();StringRedisSerializer stringRedisSerializer new StringRedisSerializer();RedisCacheConfiguration config RedisCacheConfiguration.defaultCacheConfig().entryTtl(cacheProperties.getRedis().getTimeToLive()).serializeKeysWith(RedisSerializationContext.SerializationPair.fromSerializer(stringRedisSerializer)).serializeValuesWith(RedisSerializationContext.SerializationPair.fromSerializer(genericJackson2JsonRedisSerializer));return RedisCacheManager.builder(jedisConnectionFactory()).cacheDefaults(config).build();}
}
redis配置
配置文件
spring:redis:host: 192.168.1.252port: 6379database: 1password: 123456cache:redis:time-to-live: 600s
redisconfig /*** jedis连接工厂* return*/Beanpublic JedisConnectionFactory jedisConnectionFactory() {RedisStandaloneConfiguration redisStandaloneConfiguration new RedisStandaloneConfiguration();redisStandaloneConfiguration.setDatabase(redisProperties.getDatabase());redisStandaloneConfiguration.setPort(redisProperties.getPort());redisStandaloneConfiguration.setHostName(redisProperties.getHost());redisStandaloneConfiguration.setPassword(RedisPassword.of(redisProperties.getPassword()));JedisConnectionFactory factory new JedisConnectionFactory(redisStandaloneConfiguration);return factory;}
redisTemplate Bean(name redisTemplate)public RedisTemplateString, Object redisTemplate() {RedisTemplateString, Object redisTemplate new RedisTemplate();redisTemplate.setConnectionFactory(jedisConnectionFactory());Jackson2JsonRedisSerializerObject jackson2JsonRedisSerializer new Jackson2JsonRedisSerializer(Object.class);ObjectMapper objectMapper new ObjectMapper();GenericJackson2JsonRedisSerializer genericJackson2JsonRedisSerializer new GenericJackson2JsonRedisSerializer();redisTemplate.setDefaultSerializer(genericJackson2JsonRedisSerializer);objectMapper.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);objectMapper.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);jackson2JsonRedisSerializer.setObjectMapper(objectMapper);redisTemplate.setKeySerializer(new StringRedisSerializer());redisTemplate.setHashKeySerializer(new StringRedisSerializer());redisTemplate.setHashValueSerializer(genericJackson2JsonRedisSerializer);redisTemplate.setValueSerializer(genericJackson2JsonRedisSerializer);redisTemplate.afterPropertiesSet();return redisTemplate;}
使用
注入cacheManager并使用 Autowiredprivate CacheManager cacheManager;public void test() {Cache ca cacheManager.getCache(userCache);ca.put(key, value);ca.get(key);} Springboot 集成使用缓存
Cacheable
注解为
Cacheable 标记当前方法 可将数据缓存与缓存一般用于查询类方法 Cacheable(value firm, key #id, condition#id!null)public FirmBo getFirm(Long id) {return get(id);}
CacheEvict
销毁缓存一般用于编辑、新增或删除时候销毁缓存下次查询时会重新走数据库
CacheEvict(value person, key #person.id, condition #person.id!null)public PersonBo savePerson(PersonBo person) {save(person);}redis缓存存储实例
