转自：http://blog.csdn.net/mlz_2/article/details/52229456
spring+springmvc+jackson
如果返回的是List<ObjectClass>，而ObjectClass对象的某个属性值是null，此时不返回这个属性。
POM
[html] view plain copy <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-core</artifactId> <version>${jackson.version}</version> </dependency> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-databind</artifactId> <version>${jackson.version}</version> </dependency> 覆盖默认的
[html] view plain copy <mvc:annotation-driven> <mvc:message-converters> <bean class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter"> <property name="objectMapper" ref="objectMapper" /> </bean> </mvc:message-converters> </mvc:annotation-driven>
[html] view plain copy <bean id="objectMapper" class="com.fasterxml.jackson.databind.ObjectMapper"> <property name="dateFormat"> <bean class="java.text.SimpleDateFormat"> <constructor-arg> <value>yyyy-MM-dd HH:mm:ss</value> </constructor-arg> </bean> </property> <property name="serializationInclusion"> <value type="com.fasterxml.jackson.annotation.JsonInclude.Include">NON_NULL</value> </property> </bean>
