一、前言Spring Data Redis是Spring官方封装的Redis操作框架底层默认适配Lettuce屏蔽底层客户端差异提供统一、简洁的RedisTemplate模板是SpringBoot项目操作Redis的标准方案。本文提供可直接上线的完整配置工具类。二、核心依赖dependency groupIdorg.springframework.boot/groupId artifactIdspring-boot-starter-data-redis/artifactId /dependency三、application.yml生产配置spring: redis: # 单机配置 host: 127.0.0.1 port: 6379 password: 123456 # 数据库索引 database: 0 # 超时时间 timeout: 3000ms # Lettuce连接池配置 lettuce: pool: max-active: 20 max-idle: 10 min-idle: 5 max-wait: 3000ms四、Redis配置类解决序列化乱码、Key有序默认JDK序列化会出现乱码、可读性差生产统一使用Jackson2Json序列化。Configuration public class RedisConfig { Bean public RedisTemplateString, Object redisTemplate(RedisConnectionFactory factory) { RedisTemplateString, Object redisTemplate new RedisTemplate(); redisTemplate.setConnectionFactory(factory); // String序列化 StringRedisSerializer stringSerializer new StringRedisSerializer(); // Json序列化 GenericJackson2JsonRedisSerializer jsonSerializer new GenericJackson2JsonRedisSerializer(); // key序列化 redisTemplate.setKeySerializer(stringSerializer); redisTemplate.setHashKeySerializer(stringSerializer); // value序列化 redisTemplate.setValueSerializer(jsonSerializer); redisTemplate.setHashValueSerializer(jsonSerializer); redisTemplate.afterPropertiesSet(); return redisTemplate; } }五、Redis通用工具类全覆盖常用方法Component public class RedisUtil { Autowired private RedisTemplateString, Object redisTemplate; // 设置缓存 public void set(String key, Object value) { redisTemplate.opsForValue().set(key, value); } // 设置过期缓存 public void set(String key, Object value, long time, TimeUnit unit) { redisTemplate.opsForValue().set(key, value, time, unit); } // 获取缓存 public Object get(String key) { return redisTemplate.opsForValue().get(key); } // 删除缓存 public Boolean del(String key) { return redisTemplate.delete(key); } // 设置过期时间 public Boolean expire(String key, long time, TimeUnit unit) { return redisTemplate.expire(key, time, unit); } // 判断key是否存在 public Boolean hasKey(String key) { return redisTemplate.hasKey(key); } }六、业务测试使用RestController RequestMapping(/redis) public class RedisController { Autowired private RedisUtil redisUtil; GetMapping(/set) public String set() { redisUtil.set(user:name, 张三, 60, TimeUnit.SECONDS); return success; } GetMapping(/get) public Object get() { return redisUtil.get(user:name); } }七、集群配置拓展集群环境替换yml配置即可无需改代码spring: redis: cluster: nodes: - 127.0.0.1:7001 - 127.0.0.1:7002 - 127.0.0.1:7003