long精度丢失 后端处理

@Configuration
public class JacksonConfig {

@Bean
public MappingJackson2HttpMessageConverter jackson2HttpMessageConverter() {
final Jackson2ObjectMapperBuilder builder = new Jackson2ObjectMapperBuilder();
builder.serializationInclusion(JsonInclude.Include.NON_NULL);
final ObjectMapper objectMapper = builder.build();
SimpleModule simpleModule = new SimpleModule();
// Long 转为 String 防止 js 丢失精度
simpleModule.addSerializer(Long.class, ToStringSerializer.instance);
objectMapper.registerModule(simpleModule);
// 忽略 transient 关键词属性
objectMapper.configure(MapperFeature.PROPAGATE_TRANSIENT_MARKER, true);
return new MappingJackson2HttpMessageConverter(objectMapper);
}
}