方法一：自定义消息转换器
@Configuration
public class WebMvcConfig extends WebMvcConfigurerAdapter{
/**
* 利用fastjson替换掉jackson
* @param converters
*/
@Override
public void configureMessageConverters(List<HttpMessageConverter<?>> converters) {
super.configureMessageConverters(converters);
FastJsonConfig fastJsonConfig = new FastJsonConfig();
fastJsonConfig.setSerializerFeatures(SerializerFeature.PrettyFormat);
}
}
方法二：在application.yml配置文件中
spring:
jackson:
default-property-inclusion: non_null
方法三：单DTO空值过滤，DTO上添加如下注解
@JsonInclude(JsonInclude.Include.NON_EMPTY)
@JsonInclude(JsonInclude.Include.NON_NULL)
