java.lang.ClassCastException: org.apache.catalina.connector.RequestFacade cannot be cast to org.springframework.web.multipart.MultipartHttpServletRequest

转自：https://blog.csdn.net/iteye_17476/article/details/82651580

java.lang.ClassCastException: org.apache.catalina.connector.RequestFacade cannot be cast to org.springframework.web.multipart.MultipartHttpServletRequest

一、详细的错误信息（解决方法在下面）：

 

java.lang.ClassCastException: org.apache.catalina.connector.RequestFacade cannot be cast to org.springframework.web.multipart.MultipartHttpServletRequest

 

at com.lqy.spring.iwx.controller.BaseController.getFileEntityAfterUpoad(BaseController.java:429)

 

at com.lqy.spring.iwx.controller.backend.weixin.WxMaterialController.uploadMaterial(WxMaterialController.java:192)

 

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.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:222)

 

at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:137)

 

at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:110)

 

at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:775)

 

at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:705)

 

at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)

 

at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:959)

 

at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:893)

 

at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:965)

 

at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:867)

 

at javax.servlet.http.HttpServlet.service(HttpServlet.java:650)

 

at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:841)

 

at javax.servlet.http.HttpServlet.service(HttpServlet.java:731)

 

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)

 

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)

 

at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:85)

 

at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)

 

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)

 

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)

 

at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)

 

at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)

 

at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:505)

 

at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)

 

at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)

 

at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:957)

 

at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)

 

at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:423)

 

at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1079)

 

at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:620)

 

at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:318)

 

at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)

 

at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)

 

at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)

 

at java.lang.Thread.run(Unknown Source)

二、解决方法：在SpringMvc.xml文件中增加Spring文件上传的解析器，如下

<!-- 上传文件拦截，设置最大上传文件大小 10M=10*1024*1024(B)=10485760 bytes -->

	<bean id="multipartResolver"

		class="org.springframework.web.multipart.commons.CommonsMultipartResolver">

		<property name="maxUploadSize" value="10485760" />

		<!-- resolveLazily属性启用是为了推迟文件解析，以便在Action 中捕获文件大小异常 -->

		<property name="resolveLazily" value="true" />

		<property name="defaultEncoding" value="UTF-8" />

	</bean>

java.lang.ClassCastException: org.apache.catalina.connector.RequestFacade cannot be cast to org.springframework.web.multipart.MultipartHttpServletRequest的相关教程结束。