SpringBoot集成Redis-解决序列化问题

JDK17 + SpringBoot 3.2.2

1. 引入依赖

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

2. 添加配置

@Bean
    public RedisTemplate<Object, Object> redisTemplate(RedisConnectionFactory factory) {
        RedisTemplate<Object, Object> redisTemplate = new RedisTemplate<>();
        redisTemplate.setConnectionFactory(factory);
        String DATE_TIME_FORMAT = "yyyy-MM-dd HH:mm:ss";
        ObjectMapper objectMapper = new ObjectMapper();
        // 处理Date类型
        objectMapper.setDateFormat(new SimpleDateFormat(DATE_TIME_FORMAT));
        objectMapper.setTimeZone(TimeZone.getTimeZone("GMT+8"));
        objectMapper.registerModule(new JavaTimeModule()
                // 处理LocalDateTime类型
                .addSerializer(LocalDateTime.class, new LocalDateTimeSerializer(DateTimeFormatter.ofPattern(DATE_TIME_FORMAT)))
                .addDeserializer(LocalDateTime.class, new LocalDateTimeDeserializer(DateTimeFormatter.ofPattern(DATE_TIME_FORMAT))));
        // 序列化java对象时，将类的信息写入redis
        objectMapper.activateDefaultTyping(LaissezFaireSubTypeValidator.instance, ObjectMapper.DefaultTyping.NON_FINAL, JsonTypeInfo.As.WRAPPER_ARRAY);
        // 修改默认的序列化规则
        redisTemplate.setDefaultSerializer(new GenericJackson2JsonRedisSerializer(objectMapper));
        return redisTemplate;
    }