Springboot整合Redis

Springboot整合Redis

依赖

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

• 在springboot2.x之后, 原来使用的jedis被替换成了lettuce

配置

spring:
  redis:
    host: 127.0.0.1
    port: 6379

测试

@Autowired
private RedisTemplate redisTemplate;

@Test
void contextLoads() {
    redisTemplate.opsForValue().set("key1", "aaa");
    System.out.println(redisTemplate.opsForValue().get("key1"));
}

127.0.0.1:6379> keys *
1) "\xac\xed\x00\x05t\x00\x05user1" 

通过自定义RedisTemplate, 使数据序列化

@Configuration
public class RedisConfig {

    @Bean
    public RedisTemplate<String, Object> redisTemplate(RedisConnectionFactory factory) throws UnknownHostException {
        //默认是<Object, Object>
        RedisTemplate<String, Object> template = new RedisTemplate<>();
        template.setConnectionFactory(factory);

        //json序列化配置
        Jackson2JsonRedisSerializer jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer(Object.class);
        ObjectMapper mapper = new ObjectMapper();
        mapper.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
        mapper.activateDefaultTyping(LaissezFaireSubTypeValidator.instance, ObjectMapper.DefaultTyping.NON_FINAL);
        jackson2JsonRedisSerializer.setObjectMapper(mapper);
        //string序列化
        StringRedisSerializer stringRedisSerializer = new StringRedisSerializer();
        //key采用string序列化
        template.setKeySerializer(stringRedisSerializer);
        template.setHashKeySerializer(stringRedisSerializer);
        //value采用json序列化
        template.setValueSerializer(jackson2JsonRedisSerializer);
        template.setHashValueSerializer(jackson2JsonRedisSerializer);
        template.afterPropertiesSet();

        return template;
    }
}

再次测试后

127.0.0.1:6379> keys *
1) "\xac\xed\x00\x05t\x00\x05user1"
2) "user1"