关于使用MultipartFile上传文件报错NullPointerException

客户端报错：HTTP Status 500 - Request processing failed; nested exception is java.lang.NullPointerException
原因：<bean id="commonsMultipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver"> <property name="maxUploadSize" value="10485760" /> </bean>
id唯一且必须为multipartResolver
解决:

<bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
	<property name="defaultEncoding" value="UTF-8" />
    <property name="maxUploadSize" value="10485760" />
</bean>`
1234

注：controller中的参数名字必须和标签内的name属性值相同，否则也会报以上错误。

引用出处:出处