前端接收Long型数据，精度丢失

后端通过Long型雪花id传给前端，前端接收后精度丢失

前端只能接收16位的number长度，解决办法可以使用Json序列化工具

/**
 * Jackson 配置文件
 */
@Configuration
public class JacksonConfig {

    /**
     * DateTime格式化字符串
     */
    private static final String DATETIME_FORMAT = "yyyy-MM-dd HH:mm:ss";

    /**
     * Date格式化字符串
     */
    private static final String DATE_FORMAT = "yyyy-MM-dd";

    /**
     * Time格式化字符串
     */
    private static final String TIME_FORMAT = "HH:mm:ss";

    @Bean
    @Primary
    public Jackson2ObjectMapperBuilderCustomizer jackson2ObjectMapperBuilderCustomizer() {
        return builder -> builder
                .dateFormat(new SimpleDateFormat(DATETIME_FORMAT))
                .serializerByType(LocalDateTime.class, new LocalDateTimeSerializer(DateTimeFormatter.ofPattern(DATETIME_FORMAT)))
                .serializerByType(LocalDate.class, new LocalDateSerializer(DateTimeFormatter.ofPattern(DATE_FORMAT)))
                .serializerByType(LocalTime.class, new LocalTimeSerializer(DateTimeFormatter.ofPattern(TIME_FORMAT)))
                .deserializerByType(LocalDateTime.class, new LocalDateTimeDeserializer(DateTimeFormatter.ofPattern(DATETIME_FORMAT)))
                .deserializerByType(LocalDate.class, new LocalDateDeserializer(DateTimeFormatter.ofPattern(DATE_FORMAT)))
                .deserializerByType(LocalTime.class, new LocalTimeDeserializer(DateTimeFormatter.ofPattern(TIME_FORMAT)));
    }

    @Bean
    @Primary
    @ConditionalOnMissingBean(ObjectMapper.class)
    public ObjectMapper jacksonObjectMapper(Jackson2ObjectMapperBuilder builder) {
        ObjectMapper objectMapper = builder.createXmlMapper(false).build();
        objectMapper.setSerializationInclusion(JsonInclude.Include.NON_NULL);
        return objectMapper;
    }

}

在返回的长整型数据添加注解

@JsonSerialize(using = ToStringSerializer.class)
private Long id;