修改

patient-co/patient-co-wlyy/src/main/java/com/yihu/wlyy/config/MvcConfig.java

@@ -37,16 +37,16 @@ public class MvcConfig extends WebMvcConfigurerAdapter {
        super.addInterceptors(registry);
    }
    /**
     * 为null的数据不返回
     * @param converters
     */
    @Override
    public void configureMessageConverters(List<HttpMessageConverter<?>> converters) {
        MappingJackson2HttpMessageConverter mappingJackson2HttpMessageConverter = new MappingJackson2HttpMessageConverter();
        ObjectMapper objectMapper=new ObjectMapper();
        objectMapper.setSerializationInclusion(JsonInclude.Include.NON_NULL);
        mappingJackson2HttpMessageConverter.setObjectMapper(objectMapper);
        converters.add(mappingJackson2HttpMessageConverter);
    }
//    /**
//     * 为null的数据不返回
//     * @param converters
//     */
//    @Override
//    public void configureMessageConverters(List<HttpMessageConverter<?>> converters) {
//        MappingJackson2HttpMessageConverter mappingJackson2HttpMessageConverter = new MappingJackson2HttpMessageConverter();
//        ObjectMapper objectMapper=new ObjectMapper();
//        objectMapper.setSerializationInclusion(JsonInclude.Include.NON_NULL);
//        mappingJackson2HttpMessageConverter.setObjectMapper(objectMapper);
//        converters.add(mappingJackson2HttpMessageConverter);
//    }
}