指定RedisTemplate的序列化方式

指定序列化方式 fastJsonRedisSerializer

@Configuration
public class RedisConfig {

    /**
     * redisTemplate 默認的序列化方式為 JdkSerializationRedisSerializer
     * StringRedisTemplate 的默認序列化方式為 StringRedisSerializer
     * 使用 fastJsonRedisSerializer 替換默認序列化方式
     */
    @Bean
    public RedisTemplate<String, Object> redisTemplate(RedisConnectionFactory redisConnectionFactory) {
        RedisTemplate<String, Object> redisTemplate = new RedisTemplate<>();
        redisTemplate.setConnectionFactory(redisConnectionFactory);

        FastJsonRedisSerializer<Object> fastJsonRedisSerializer = new FastJsonRedisSerializer<>(Object.class);

        // 設置值value的序列化方式
        redisTemplate.setValueSerializer(fastJsonRedisSerializer);
        redisTemplate.setHashValueSerializer(fastJsonRedisSerializer);

        // 設置鍵key的序列化方式
        redisTemplate.setKeySerializer(new StringRedisSerializer());
        redisTemplate.setHashKeySerializer(new StringRedisSerializer());

        redisTemplate.afterPropertiesSet();
        return redisTemplate;
    }
}

方法

@Component
public class RedisUtil {

    @Autowired
    private RedisTemplate<String, Object> redisTemplate;

    public void set(String key, Object value, Long time){
        redisTemplate.opsForValue().set(key,  value, time, TimeUnit.SECONDS);
    }

    public Object get(String key){
        return redisTemplate.opsForValue().get(key);
    }

}

測試

@Autowired
private RedisTemplate<String, Object> redisTemplate;

@Test
void contextLoads() {
	redisTemplate.opsForValue().set("user", new UserInfo("admin"));
    // UserInfo user = (UserInfo) redisTemplate.opsForValue().get("user");

	// 反序列化需要指定類型
    Object user = redisTemplate.opsForValue().get("user");
    User userInfo = JSONObject.parseObject(JSON.toJSONString(user), User.class);

 }