[Redis]——RedisTemplate的两种序列化方式

    @Test
    void contextLoads2(){
        User user = new User("可乐", 18);
        ValueOperations<String, Object> opsForValue = redisTemplate.opsForValue();
        opsForValue.set("user:1", user);
        User o = (User) opsForValue.get("user:1");
        System.out.println(o);
    }

@Configuration
public class RedisConfig {
 
    @Bean
    public RedisTemplate<String, Object> redisTemplate(RedisConnectionFactory connectionFactory){
        // 创建redistemplate对象
        RedisTemplate<String, Object> template = new RedisTemplate<>();
        // 设置连接工厂
        template.setConnectionFactory(connectionFactory);
        // 创建JSON序列化工具
        GenericJackson2JsonRedisSerializer jsonRedisSerializer = new GenericJackson2JsonRedisSerializer();
        // 设置Key的序列化
        template.setKeySerializer(RedisSerializer.string());
        template.setHashKeySerializer(RedisSerializer.string());
        // 设置Value的序列化
        template.setValueSerializer(jsonRedisSerializer);
        template.setHashValueSerializer(jsonRedisSerializer);
        // 返回
        return template;
    }
}

@Autowired
    StringRedisTemplate stringRedisTemplate;
    // JSON工具
    private static final ObjectMapper mapper = new ObjectMapper();
    @Test
    void contextLoads4() throws JsonProcessingException {
        User user = new User("可乐", 18);
        // 手动序列化
        String json = mapper.writeValueAsString(user);
        //写入数据
        stringRedisTemplate.opsForValue().set("user:2", json);
        String s = stringRedisTemplate.opsForValue().get("user:2");
        // 反序列化
        User u = mapper.readValue(s, User.class);
        System.out.println(u);
    }