springboot与Redis整合的步骤

好的，下面是Spring Boot与Redis整合的步骤：

1. 在pom.xml文件中添加Redis依赖。

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

2. 在application.properties文件中配置Redis相关信息。

# Redis配置
spring.redis.host=localhost
spring.redis.port=6379
spring.redis.password=

3. 在Spring Boot的启动类上添加@EnableCaching注解，开启缓存支持。

@SpringBootApplication
@EnableCaching
public class Application {
    public static void main(String[] args) {
        SpringApplication.run(Application.class, args);
    }
}

4. 编写Redis配置类，可以自定义RedisTemplate和CacheManager。

@Configuration
public class RedisConfig {
    @Bean
    public RedisTemplate<String, Object> redisTemplate(RedisConnectionFactory redisConnectionFactory) {
        RedisTemplate<String, Object> redisTemplate = new RedisTemplate<>();
        redisTemplate.setConnectionFactory(redisConnectionFactory);

        // 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<Object> serializer = new Jackson2JsonRedisSerializer<>(Object.class);
        ObjectMapper objectMapper = new ObjectMapper();
        objectMapper.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
        objectMapper.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
        serializer.setObjectMapper(objectMapper);

        // 设置key和value的序列化方式
        redisTemplate.setKeySerializer(new StringRedisSerializer());
        redisTemplate.setValueSerializer(serializer);
        redisTemplate.setHashKeySerializer(new StringRedisSerializer());
        redisTemplate.setHashValueSerializer(serializer);

        redisTemplate.afterPropertiesSet();
        return redisTemplate;
    }

    @Bean
    public CacheManager cacheManager(RedisConnectionFactory redisConnectionFactory) {
        RedisCacheConfiguration redisCacheConfiguration = RedisCacheConfiguration.defaultCacheConfig()
                .entryTtl(Duration.ofSeconds(60))
                .disableCachingNullValues()
                .serializeValuesWith(RedisSerializationContext.SerializationPair.fromSerializer(new GenericJackson2JsonRedisSerializer()));

        return RedisCacheManager.builder(redisConnectionFactory)
                .cacheDefaults(redisCacheConfiguration)
                .transactionAware()
                .build();
    }
}

5. 在Service层中使用@Cacheable注解配置缓存。

@Service
public class UserService {
    @Autowired
    private UserRepository userRepository;

    @Cacheable(value = "users", key = "#id")
    public User findById(Long id) {
        return userRepository.findById(id).orElse(null);
    }

    @CacheEvict(value = "users", key = "#id")
    public void deleteById(Long id) {
        userRepository.deleteById(id);
    }
}

6. 启动应用程序，即可使用Redis缓存。

以上就是Spring Boot与Redis整合的步骤。希望能对你有所帮助！