json返回值过滤null值

1.全局配置
@Configuration
public class JackSonConfig {
    @Bean
    @Primary
    @ConditionalOnMissingBean(ObjectMapper.class)
    public ObjectMapper jacksonObjectMapper(Jackson2ObjectMapperBuilder builder) {
        ObjectMapper objectMapper = builder.createXmlMapper(false).build();
        objectMapper.setSerializationInclusion(JsonInclude.Include.NON_NULL);
        return objectMapper;
    }
}

或者

<mvc:annotation-driven> <!-- 强化参数接收 --> <mvc:argument-resolvers> <bean class="org.durcframework.common.form.FormModelMethodArgumentResolver" /> </mvc:argument-resolvers> <mvc:message-converters> <bean class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter"> <property name="objectMapper"> <bean class="com.fasterxml.jackson.databind.ObjectMapper"> <!-- 处理responseBody 里面日期类型 --> <property name="dateFormat"> <bean class="java.text.SimpleDateFormat"> <constructor-arg type="java.lang.String" value="yyyy-MM-dd HH:mm:ss" /> </bean> </property> <!-- 为null字段时不显示 --> <property name="serializationInclusion"> <value type="com.fasterxml.jackson.annotation.JsonInclude.Include">NON_NULL</value> </property> </bean> </property> </bean> </mvc:message-converters> </mvc:annotation-driven>

2.部分配置

@JsonInclude(Include.NON_NULL)
public class XXXX{
}