SpringBoot全局配置Long转String，解决前端接收时精度丢失的问题

springboot中WebMvcConfigurationSupport、WebMvcConfigurationAdapter区别
@EnableWebMvc如何禁止@EnableAutoConfiguration

@EnableWebMvc
@Configuration
public class WebDataConvertConfig implements WebMvcConfigurer {
    public void configureMessageConverters(List<HttpMessageConverter<?>> converters) {
      MappingJackson2HttpMessageConverter jackson2HttpMessageConverter = new MappingJackson2HttpMessageConverter();
      ObjectMapper objectMapper = new ObjectMapper();
      /**
       * 序列换成json时,将所有的long变成string
       * 因为js中得数字类型不能包含所有的java long值
       */
      SimpleModule simpleModule = new SimpleModule();
      simpleModule.addSerializer(Long.class, ToStringSerializer.instance);
      simpleModule.addSerializer(Long.TYPE, ToStringSerializer.instance);
      simpleModule.addSerializer(BigInteger.class, ToStringSerializer.instance);

      // 反序列化时忽略多余字段
      objectMapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
      objectMapper.registerModule(simpleModule);
      jackson2HttpMessageConverter.setObjectMapper(objectMapper);
      converters.add(jackson2HttpMessageConverter);
    }