spring mvc 返回json的配置

转载自：http://my.oschina.net/haopeng/blog/324934

springMVC-servlet.xml 配置

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<!-- 启动Springmvc注解驱动 -->     <mvc:annotation-driven/>  <!-- 返回json 方法一 需要导入 fastjson.jar包 -->      <mvc:annotation-driven>         <mvc:message-converters register-defaults="false">             <!-- 避免IE执行AJAX时,返回JSON出现下载文件 -->             <bean id="fastJsonHttpMessageConverter" class="com.alibaba.fastjson.support.spring.FastJsonHttpMessageConverter">                 <property name="supportedMediaTypes">                     <list>                         <!-- 这里顺序不能反，一定先写text/html,不然ie下出现下载提示 -->                         <value>text/html;charset=UTF-8</value>                         <value>application/json;charset=UTF-8</value>                     </list>                 </property>             </bean>         </mvc:message-converters>     </mvc:annotation-driven>             <!-- 返回json 方法二 需要导入 jackson-annotations.jar,jackson-core.jar,jackson-databind.jar-->     <!--  <bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping" />     <bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter">         <property name="messageConverters">             <list>                 <bean class="org.springframework.http.converter.StringHttpMessageConverter">                     <property name="supportedMediaTypes">                         <list>                             <value>text/html; charset=UTF-8</value>                             <value>application/json;charset=UTF-8</value>                         </list>                     </property>                 </bean>                 <bean class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter">                     <property name="supportedMediaTypes">                         <list>                             <value>text/html; charset=UTF-8</value>                             <value>application/json;charset=UTF-8</value>                         </list>                     </property>                 </bean>             </list>         </property>     </bean> -->     <!-- 其下与返回json 无关  -->       <!-- 自动将控制器加载到bean -->     <context:component-scan base-package="org.controller"></context:component-scan>         <!-- 配置处理静态资源的请求 -->     <mvc:resources location="/resources/" mapping="*/res/**"/>           <!-- 拦截器配置 -->     <mvc:interceptors>         <bean class="org.aop.LoginInteceptor" />     </mvc:interceptors>           <!-- 配置视图解析器 -->     <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">             <property name="prefix" value="/WEB-INF/jsp/"/>             <property name="suffix" value=".jsp"/><!--可为空,方便实现自已的依据扩展名来选择视图解释类的逻辑  -->             <property name="viewClass" value="org.springframework.web.servlet.view.JstlView" />         </bean>               <!-- 上传 需要使用到的配置-->     <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">         <property name="maxUploadSize" value="1046666000"/>     </bean>            <!--配置全局的异常-->     <!-- <bean id="exceptionResolver" class="org.springframework.web.servlet.handler.SimpleMappingExceptionResolver">         <property name="exceptionMappings">             <props>                 <prop key="com.guanlan.util.SportException">error</prop>             </props>         </property>     </bean> -->

Controller.java 代码：

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/**  * 首页测试控制器 * @ClassName: HomeController * @Description: TODO(这里用一句话描述这个类的作用) * @author 郝鹏 * @date 2014-9-29 下午2:22:35 *  */ @Controller public class HomeController {           @RequestMapping({"/"})     public String index(Map<String, Object> map){         map.put("name", "郝鹏");         return "index";     }           /**      * 返回json     * @Title: getJson     * @Description: TODO(这里用一句话描述这个方法的作用)     * @return     * @return Object    返回类型     * @author 郝鹏     * @date 2014-10-8 下午3:50:24      */     @RequestMapping(value="/json")     @ResponseBody     public Object getJson(){         Map<String, Object> map=new HashMap<String, Object>();         map.put("fd", "郝鹏");         return map;     } }