解决Redis序列化Java8的LocalDateTime问题

在从Redis获取带有LocalDateTime类型属性的对象时，产生序列化和反序列化问题解决办法 方式一：实体类上指定LocalDateTime的序列化器和反序列化器

1  @JsonDeserialize(using = LocalDateTimeDeserializer.class)  //反序列化
2  @JsonSerialize(using = LocalDateTimeSerializer.class)  //序列化
3  private LocalDateTime birthday;

方式二：在Redis的配置类中指明序列化的方式

1  @Configuration
2    public class RedisConfig {
3    private static final DateTimeFormatter DATE_TIME_FORMATTER = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
4    private static final DateTimeFormatter DATE_FORMATTER = DateTimeFormatter.ofPattern("yyyy-MM-dd");
5    private static final DateTimeFormatter TIME_FORMATTER = DateTimeFormatter.ofPattern("HH:mm:ss");
6
7    @Bean
8    public RedisTemplate<String, Object> redisTemplate(RedisConnectionFactory redisConnectionFactory) {
9        RedisTemplate<String, Object> template = new RedisTemplate<>();
10        template.setConnectionFactory(redisConnectionFactory);
11
12        /**
13         * JSON序列化
14         */
15        Jackson2JsonRedisSerializer serializer = new Jackson2JsonRedisSerializer(Object.class);
16        ObjectMapper mapper = new ObjectMapper();
17        //取消时间转换格式，默认是时间戳，同时需要设置要表现的时间格式
18        mapper.configure(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS, false);
19        mapper.configure(SerializationFeature.WRITE_DURATIONS_AS_TIMESTAMPS, false);
20        mapper.setDateFormat(new SimpleDateFormat("yyy-MM-dd HH:mm:ss"));
21
22        //默认序列化没有实现，反序列化有实现
23        JavaTimeModule javaTimeModule = new JavaTimeModule();
24
25        javaTimeModule.addSerializer(LocalDateTime.class, new LocalDateTimeSerializer(DATE_TIME_FORMATTER));
26//        javaTimeModule.addSerializer(LocalDateTime.class, new LocalDateTimeSerializer(DATE_FORMATTER));
27//        javaTimeModule.addSerializer(LocalDateTime.class, new LocalDateTimeSerializer(TIME_FORMATTER));
28
29        mapper.registerModule(javaTimeModule);
30        //设置时区
31        mapper.setTimeZone(TimeZone.getDefault());
32        //设置格式化输出
33//        MAPPER.enable(SerializationFeature.INDENT_OUTPUT);
34        //设置格式化输出
35        mapper.setPropertyNamingStrategy(PropertyNamingStrategy.SNAKE_CASE);
36        mapper.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
37        serializer.setObjectMapper(mapper);
38
39//        StringRedisSerializer stringRedisSerializer = new StringRedisSerializer();
40        template.setKeySerializer(serializer);
41        template.setHashKeySerializer(serializer);
42        template.setValueSerializer(serializer);
43        template.setHashValueSerializer(serializer);
44        return template;
45    }
46}
47