springboot2.x集成redis(lettuce)

pom.xml

	  <!--reids集成--><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-data-redis</artifactId></dependency><dependency><groupId>org.apache.commons</groupId><artifactId>commons-pool2</artifactId></dependency>

properties配置

#数据库索引 默认0
spring.redis.database=0
#redis服务器地址
spring.redis.host=127.0.0.1
#redis服务器端口
spring.redis.port=6379
#redis服务器连接密码
spring.redis.password=XXX
#连接池最大连接数（使用负数表示没有限制） 默认8
spring.redis.lettuce.pool.max-active=8
#连接池最大阻塞等待时间 默认没有限制 -1
spring.redis.lettuce.pool.max-wait=-1
#连接池中最大空闲连接 默认8
spring.redis.lettuce.pool.max-idle=8
#连接池中最小空闲连接 默认0
spring.redis.lettuce.pool.min-idle=0

redisTemplate配置，重写key、value序列化

@Configuration
@EnableCaching // 支持缓存
public class RedisConfig extends CachingConfigurerSupport {
    @Beanpublic RedisCacheManager redisCacheManager(RedisTemplate redisTemplate) {
    // 初始化一个RedisCacheWriterRedisCacheWriter redisCacheWriter = RedisCacheWriter.nonLockingRedisCacheWriter(redisTemplate.getConnectionFactory());// 设置默认过期时间30MRedisCacheConfiguration redisCacheConfiguration = RedisCacheConfiguration.defaultCacheConfig().serializeValuesWith(RedisSerializationContext.SerializationPair.fromSerializer(redisTemplate.getValueSerializer())).entryTtl(Duration.ofMinutes(30L)).disableCachingNullValues();// 初始化RedisCacheManagerRedisCacheManager redisCacheManager = new RedisCacheManager(redisCacheWriter, redisCacheConfiguration);return redisCacheManager;}/*** retemplate相关配置* springboot2.x 之后默认使用lettuce客户端连接（线程安全）** @param factory* @return*/@Bean(name = "redisTemplate")public RedisTemplate<String, Object> redisTemplate(RedisConnectionFactory factory) {
    RedisTemplate<String, Object> template = new RedisTemplate<>();// 配置连接工厂template.setConnectionFactory(factory);//使用Jackson2JsonRedisSerializer来序列化和反序列化redis的value值（默认使用JDK的序列化方式）Jackson2JsonRedisSerializer jacksonSeial = new Jackson2JsonRedisSerializer(Object.class);ObjectMapper om = new ObjectMapper();// 指定要序列化的域，field,get和set,以及修饰符范围，ANY是都有包括private和publicom.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);// 指定序列化输入的类型，类必须是非final修饰的，final修饰的类，比如String,Integer等会跑出异常om.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);jacksonSeial.setObjectMapper(om);// 值采用json序列化template.setValueSerializer(jacksonSeial);//使用StringRedisSerializer来序列化和反序列化redis的key值template.setKeySerializer(new StringRedisSerializer());// 设置hash key 和value序列化模式template.setHashKeySerializer(new StringRedisSerializer());template.setHashValueSerializer(jacksonSeial);template.afterPropertiesSet();return template;}/*** 对hash类型的数据操作** @param redisTemplate* @return*/@Beanpublic HashOperations<String, String, Object> hashOperations(RedisTemplate<String, Object> redisTemplate) {
    return redisTemplate.opsForHash();}/*** 对redis字符串类型数据操作** @param redisTemplate* @return*/@Beanpublic ValueOperations<String, Object> valueOperations(RedisTemplate<String, Object> redisTemplate) {
    return redisTemplate.opsForValue();}/*** 对链表类型的数据操作** @param redisTemplate* @return*/@Beanpublic ListOperations<String, Object> listOperations(RedisTemplate<String, Object> redisTemplate) {
    return redisTemplate.opsForList();}/*** 对无序集合类型的数据操作** @param redisTemplate* @return*/@Beanpublic SetOperations<String, Object> setOperations(RedisTemplate<String, Object> redisTemplate) {
    return redisTemplate.opsForSet();}/*** 对有序集合类型的数据操作** @param redisTemplate* @return*/@Beanpublic ZSetOperations<String, Object> zSetOperations(RedisTemplate<String, Object> redisTemplate) {
    return redisTemplate.opsForZSet();}
}

调用示例1（注解）：

    @Cacheable(value = "listXxx", key = "#key")public List<String> listXxx(String key) {
    System.out.println("执行了listXxx方法");return Arrays.asList("xxx", "yyy", System.currentTimeMillis() + "");}

调用示例2：

   @Autowiredprivate RedisTemplate redisTemplate;/*** 获取数据* @param key* @param field* @return*/public String getRedisHash(String key, String field) {
    HashOperations<String, String, String> hash = redisTemplate.opsForHash();if (StringUtils.isEmpty(key)) {
    return "";}String value = StringUtils.isEmpty(field) ? hash.get(key, key) : hash.get(key, field);return (StringUtils.isEmpty(value) || "[]".equals(value)) ? "" : value;}/*** redis缓存，只适用hash类型存储* 默认缓存永久** @param key redis 键* @param field hash 键* @param value 所缓存的数据*/public void setRedisHash(String key, String field, String value) {
    //redis hash 对象,用来存储数据HashOperations<String, String, String> hash = redisTemplate.opsForHash();if (StringUtils.isEmpty(field)) {
    hash.put(key, key, value);} else {
    hash.put(key, field, value);}}