文件上传错误信息：Expected MultipartHttpServletRequest: is a MultipartResolver configured? springMVC使用multipartFile上传文件出错：Expected MultipartHttpServletRequest: is a MultipartResolver configured?

springMVC使用multipartFile上传文件出错：Expected MultipartHttpServletRequest: is a MultipartResolver configured?

该错误信息是由于springmvc配置信息的id必须为multipartResolver

修改之前代码：

1 <!--注册文件上传解析器-->
2     <bean id="commonsMultipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
3         <property name="defaultEncoding" value="UTF-8"></property>
4     </bean>

修改之后代码：

1 <!--注册文件上传解析器-->
2     <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
3         <property name="defaultEncoding" value="UTF-8"></property>
4     </bean>