java.lang.ClassCastException: org.apache.catalina.connector.RequestFacade cannot

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　　报错内容：
　　java.lang.ClassCastException: org.apache.catalina.connector.RequestFacade cannot be cast to org.springframework.web.multipart.MultipartHttpServletRequest
　　at com.hestia.mosa.inventory.controller.IvtItemStorageController.uploadFileXml(IvtItemStorageController.java:700)
　　at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
　　at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
　　at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
　　at java.lang.reflect.Method.invoke(Unknown Source)
　　at org.springframework.web.servlet.mvc.multiaction.MultiActionController.invokeNamedMethod(MultiActionController.java:471)
　　at org.springframework.web.servlet.mvc.multiaction.MultiActionController.handleRequestInternal(MultiActionController.java:408)
　　at org.springframework.web.servlet.mvc.AbstractController.handleRequest(AbstractController.java:153)
　　at org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter.handle(SimpleControllerHandlerAdapter.java:48)
　　at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:771)
　　at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:716)
　　at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:647)
　　at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:563)
　　at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
　　at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
　　at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
　　at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
　　at org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:198)
　　at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
　　at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
　　at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
　　at common.filter.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:151)
　　at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
　　at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
　　at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
　　at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
　　at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
　　at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
　　at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
　　at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
　　at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:859)
　　at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:602)
　　at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
　　at java.lang.Thread.run(Unknown Source)
　　配置中增加:
　　<bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
　　<property name="maxUploadSize">  
　　<value>104857600</value>  
　　</property>  
　　<property name="maxInMemorySize">  
　　<value>4096</value>  
　　</property>  
　　</bean>
　　spring multipartresolver处理文件上传下载