Question

spring mvc 多文件上传时报错MultipartHttpServletRequest

org.apache.catalina.connector.RequestFacade cannot be cast to org.springframework.web.multipart.MultipartHttpServletRequest
at cn.com.abc.web.controller.member.Test.add(Controller.java:86)

已经有commons-fileupload-1.2.1.jar和commons-io-1.4.jarb包了，
而且在web.xml文件中添加了下面代码，还是报错，
<bean id="multipartResolver"
class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
<!-- set the max upload size100MB -->
<property name="maxUploadSize">
<value>104857600</value>
</property>
<property name="maxInMemorySize">
<value>4096</value>
</property>
</bean>

Answer 1

　　1、确认<form name="contractForm" id="contractForm" action="" method="post" enctype ="multipart/form-data">；
　　2、确认commons-fileupload.jar 和 org.springframework.web.jar 存在环境
　　3、MultipartHttpServletRequest multipartRequest = (MultipartHttpServletRequest)request；
　　这一句会报错：ApplicationHttpRequest cannot be cast to MultipartHttpServletRequest
　　解决办法是通过这种方式：
　　MultipartResolver resolver = new CommonsMultipartResolver(request.getSession().getServletContext());
　　MultipartHttpServletRequest multipartRequest = resolver.resolveMultipart(request);

Answer 2

多文件上传报错,也就是说单个文件不报错了?Controller.java:86,发一下代码吧

Answer 3

我有同样的错，是因为我用异步提交了。。 你可以试试直接用表单提交--