Spring集成Jackson输出非Null数据之XML配置

来源：互联网发布：sqlserver 复制表编辑：程序博客网时间：2024/05/16 14:19

Spring集成Jackson之XML配置

以下为在Spring中集成Jackson输出Json数据功能，在输出数据中不包含Null数据；具体输出数据内容信息控制详见：org.codehaus.jackson.map.annotate.JsonSerialize.Inclusion；

下面直接贴实现代码：

1、servlet-context.xml配置信息：

<?xml version="1.0" encoding="UTF-8"?><beans:beans xmlns="http://www.springframework.org/schema/mvc" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:beans="http://www.springframework.org/schema/beans" xmlns:context="http://www.springframework.org/schema/context" xmlns:mvc="http://www.springframework.org/schema/mvc" xsi:schemaLocation="http://www.springframework.org/schema/mvchttp://www.springframework.org/schema/mvc/spring-mvc.xsd  http://www.springframework.org/schema/beanshttp://www.springframework.org/schema/beans/spring-beans.xsd  http://www.springframework.org/schema/mvchttp://www.springframework.org/schema/mvc/spring-mvc-3.1.xsd   http://www.springframework.org/schema/contexthttp://www.springframework.org/schema/context/spring-context.xsd"> <!-- config jackson 不输出Null数据 -->  <mvc:annotation-driven>  <mvc:message-converters register-defaults="true">   <beans:bean    class="org.springframework.http.converter.json.MappingJacksonHttpMessageConverter">    <beans:property name="objectMapper">     <beans:bean class="org.codehaus.jackson.map.ObjectMapper">      <beans:property name="serializationInclusion">       <beans:value        type="org.codehaus.jackson.map.annotate.JsonSerialize.Inclusion">NON_NULL</beans:value>      </beans:property>     </beans:bean>    </beans:property>   </beans:bean>  </mvc:message-converters> </mvc:annotation-driven> <!-- 自动扫描com.baobaotao.web 包下的@Controller标注的类控制器类 --> <context:component-scan base-package="com.app.*" /> <!-- Handles HTTP GET requests for /resources/** by efficiently serving  up static resources in the ${webappRoot}/resources directory --> <resources mapping="/resources/**" location="/resources/" /> <!-- Resolves views selected for rendering by @Controllers to .jsp resources  in the /WEB-INF/views directory --> <beans:bean  class="org.springframework.web.servlet.view.InternalResourceViewResolver">  <beans:property name="prefix" value="/WEB-INF/views/" />  <beans:property name="suffix" value=".jsp" /> </beans:bean></beans:beans>

2、Controller的写法，注意需要加 @ResponseBody：

**  * 查询列表数据  * @param request  Request  * @param response Response  * @return         ModelMap  */ @ResponseBody @RequestMapping("/list") public ModelMap getList(HttpServletRequest request, HttpServletResponse response) {  ModelMap modelMap = new ModelMap() ;  try {   UserObject obj = ....;   modelMap.addAttribute(obj);  } catch(Exception e) {   e.printStackTrace();   }  return modelMap ; }

0 0