2. Add the spring-mobile-device dependency to pom.xml.

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<dependency>       

<groupId>org.springframework.mobile</groupId>       

<artifactId>spring-mobile-device</artifactId>      

<version>1.0.0.RELEASE</version>   

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</dependency>  

3. Add the following Spring Mobile interceptors in servlet-context.xml

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<interceptors>       

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<!-- Resolve the device that originated the web request -->      

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<beans:bean class="org.springframework.mobile.device.DeviceResolverHandlerInterceptor" />       

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<!-- Manage the user‘s site preference -->       

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<beans:bean class="org.springframework.mobile.device.site.SitePreferenceHandlerInterceptor" />        

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<!-- Redirects mobile users to domain.com/quickspringmobile/spring/m/ -->       

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<beans:bean class="org.springframework.mobile.device.switcher.SiteSwitcherHandlerInterceptor" factory-method="urlPath">         <beans:constructor-arg value="http://www.mamicode.com/m" />           

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<beans:constructor-arg value="http://www.mamicode.com/quickspringmobile/spring" />       

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</beans:bean>   

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</interceptors>  

4. The resolved device is available under the currentDevice request attribute. The site preference is available under the currentSitePreference request attribute.

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<annotation-driven>      

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<argument-resolvers>           

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<beans:bean class="org.springframework.mobile.device.DeviceWebArgumentResolver" />          

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<beans:bean class="org.springframework.mobile.device.site.SitePreferenceWebArgumentResolver" />       

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</argument-resolvers>   

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</annotation-driven>