Long类型精度丢失问题

1、现象

雪花算法得到的ID较长，传到前端后，精度丢失

2、解决方式

• 方式一：使用@JsonSerialize注解

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

• 方式二：统一配置

@Bean
public ObjectMapper jacksonObjectMapper(Jackson2ObjectMapperBuilder builder) {
    ObjectMapper objectMapper = builder.createXmlMapper(false).build();
    SimpleModule simpleModule = new SimpleModule();
    simpleModule.addSerializer(Long.class, ToStringSerializer.instance);
    objectMapper.registerModule(simpleModule);
    return objectMapper;
}