【在Spring Boot中集成Redis】

依赖

     	<dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-data-redis</artifactId></dependency>

在application.yml中配置Redis服务地址

#spring配置
spring:profiles:active: druidserver: 8080redis:host: 127.0.0.1port: 6379password:database: 0timeout: 1800000

创建Redis配置类

/*** Redis配置类** 该类配置了Redis的核心功能* RedisTemplate的序列化配置*/
@Configuration
@EnableCaching // 启用Spring缓存注解支持
public class RedisConfig extends CachingConfigurerSupport
{/*** 配置RedisTemplate** @param connectionFactory Redis连接工厂* @return 配置好的RedisTemplate实例*/@Bean@SuppressWarnings(value = { "unchecked", "rawtypes" })public RedisTemplate<Object, Object> redisTemplate(RedisConnectionFactory connectionFactory){// 创建RedisTemplate实例RedisTemplate<Object, Object> template = new RedisTemplate<>();// 设置连接工厂template.setConnectionFactory(connectionFactory);// 创建FastJson2序列化器，用于值(value)的序列化FastJson2JsonRedisSerializer serializer = new FastJson2JsonRedisSerializer(Object.class);// 设置键(key)的序列化器为StringRedisSerializer// StringRedisSerializer专门用于字符串序列化，保证key的可读性template.setKeySerializer(new StringRedisSerializer());// 设置值(value)的序列化器为FastJson2JsonRedisSerializer// 用于复杂对象的序列化template.setValueSerializer(serializer);// 设置Hash结构的key的序列化器template.setHashKeySerializer(new StringRedisSerializer());// 设置Hash结构的value的序列化器template.setHashValueSerializer(serializer);// 初始化模板属性template.afterPropertiesSet();return template;}}

缓存工具类

/*** spring redis 工具类***/
@SuppressWarnings(value = { "unchecked", "rawtypes" })
@Component
public class RedisCache {@Autowiredpublic RedisTemplate redisTemplate;/*** 缓存基本的对象，Integer、String、实体类等** @param key   缓存的键值* @param value 缓存的值*/public <T> void setCacheObject(final String key, final T value) {redisTemplate.opsForValue().set(key, value);}/*** 缓存基本的对象，Integer、String、实体类等** @param key      缓存的键值* @param value    缓存的值* @param timeout  时间* @param timeUnit 时间颗粒度*/public <T> void setCacheObject(final String key, final T value, final Integer timeout, final TimeUnit timeUnit) {redisTemplate.opsForValue().set(key, value, timeout, timeUnit);}/*** 设置有效时间** @param key     Redis键* @param timeout 超时时间* @return true=设置成功；false=设置失败*/public boolean expire(final String key, final long timeout) {return expire(key, timeout, TimeUnit.SECONDS);}/*** 设置有效时间** @param key     Redis键* @param timeout 超时时间* @param unit    时间单位* @return true=设置成功；false=设置失败*/public boolean expire(final String key, final long timeout, final TimeUnit unit) {return redisTemplate.expire(key, timeout, unit);}/*** 获取有效时间** @param key Redis键* @return 有效时间*/public long getExpire(final String key) {return redisTemplate.getExpire(key);}/*** 判断 key是否存在** @param key 键* @return true 存在 false不存在*/public Boolean hasKey(String key) {return redisTemplate.hasKey(key);}/*** 获得缓存的基本对象。** @param key 缓存键值* @return 缓存键值对应的数据*/public <T> T getCacheObject(final String key) {ValueOperations<String, T> operation = redisTemplate.opsForValue();return operation.get(key);}/*** 删除单个对象** @param key*/public boolean deleteObject(final String key) {return redisTemplate.delete(key);}/*** 删除集合对象** @param collection 多个对象* @return*/public boolean deleteObject(final Collection collection) {return redisTemplate.delete(collection) > 0;}
}

使用