spring mvc 返回json的配置

springMVC-servlet.xml 配置

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77

<!-- 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：

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34

/**   * 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;      } }