Spring mvc 文件上传接口报错

Could not instantiate bean class [org.springframework.web.multipart.commons.CommonsMultipartFile]: No default constructor found; nested exception is java.lang.NoSuchMethodException: org.springframework.web.multipart.commons.CommonsMultipartFile.<init>()

文件上传时候报这个错误！

原因：没有配置SpringMvc.xmc的文件bean类

<!-- 支持上传文件 -->
<bean id="multipartResolver"
class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
<property name="maxUploadSize" value="314572800"/>
</bean>