浅谈SpringMVC的拦截器（Interceptor）和Servlet 的过滤器（Filter）的区别与联系 及SpringMVC 的配置文件

<?xml version="1.0" encoding="UTF-8"?>
<beans .......>
 <mvc:default-servlet-handler />

 <context:component-scan base-package="com.netease.mmc.demo.web">
  <!-- enable controller advice -->
  <context:include-filter type="annotation" expression="org.springframework.web.bind.annotation.ControllerAdvice"/>
 </context:component-scan>
 <context:component-scan base-package="com.netease.mmc.demo.imdemo.web"/>

 <context:annotation-config />

 <mvc:interceptors>
  <mvc:interceptor>
   <mvc:mapping path="/**"/>
   <bean class="com.netease.mmc.demo.common.spring.interceptor.DDOSInterceptor">
    <property name="close" value="false"/>
    <property name="maxRequest" value="2000"/>
    <property name="ttlSeconds" value="10"/>
   </bean>
  </mvc:interceptor>
  <mvc:interceptor>
   <mvc:mapping path="/**"/>
   <bean class="com.netease.mmc.demo.common.spring.interceptor.WebContextHolderInterceptor"/>
  </mvc:interceptor>
  <mvc:interceptor>
   <mvc:mapping path="/api/**"/>
   <bean class="com.netease.mmc.demo.web.interceptor.ValidateAppKeyInterceptor" />
  </mvc:interceptor>
 </mvc:interceptors>

 <mvc:annotation-driven ignore-default-model-on-redirect="true">
  <!-- message converters -->
  <mvc:message-converters>
   <bean class="org.springframework.http.converter.ByteArrayHttpMessageConverter"/>
   <bean class="org.springframework.http.converter.StringHttpMessageConverter">
    <constructor-arg value="UTF-8"/>
   </bean>
   <bean class="org.springframework.http.converter.xml.SourceHttpMessageConverter"/>
   <bean class="org.springframework.http.converter.FormHttpMessageConverter"/>
   <bean class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter">
    <property name="objectMapper" ref="objectMapper"/>
   </bean>
  </mvc:message-converters>
 </mvc:annotation-driven>

 <!-- view resolver -->
 <bean class="org.springframework.web.servlet.view.ContentNegotiatingViewResolver">
  <property name="contentNegotiationManager" ref="contentNegotiationManager"/>
  <!-- api server has no page view resolvers, add viewResolvers config here if required -->
  <property name="defaultViews">
   <list>
    <bean class="org.springframework.web.servlet.view.json.MappingJackson2JsonView">
     <property name="objectMapper" ref="objectMapper"/>
     <property name="contentType" value="application/json;charset=UTF-8"/>
     <property name="modelKeys">
      <set>
       <value>res</value>
       <value>msg</value>
       <value>errmsg</value>
      </set>
     </property>
    </bean>
    <bean class="org.springframework.web.servlet.view.xml.MarshallingView">
     <property name="marshaller" ref="xstreamMarshaller"/>
     <property name="modelKey" value="data"/>
     <property name="contentType" value="application/xml"/>
    </bean>
   </list>
  </property>
 </bean>

 <bean id="contentNegotiationManager" class="org.springframework.web.accept.ContentNegotiationManagerFactoryBean">
  <property name="mediaTypes">
   <map>
    <entry key="json" value="application/json;charset=UTF-8"/>
    <entry key="xml" value="application/xml;charset=UTF-8"/>
    <entry key="html" value="text/html;charset=UTF-8"/>
   </map>
  </property>
  <property name="defaultContentType" value="application/json;charset=UTF-8"/>
 </bean>

 <bean id="objectMapper" class="com.fasterxml.jackson.databind.ObjectMapper">
  <property name="serializationInclusion" value="NON_NULL" />
 </bean>

 <bean id="xstreamMarshaller" class="org.springframework.oxm.xstream.XStreamMarshaller">
  <property name="autodetectAnnotations" value="true" />
  <property name="streamDriver">
   <bean class="com.thoughtworks.xstream.io.xml.DomDriver" />
  </property>
 </bean>

 <aop:aspectj-autoproxy/>
</beans>