Spring上传文件报错的解决（CommonsMultipartResolver）

今天遇到一个问题，使用Spring的Controller中实现上传文件处理的时候，报错：

[ERROR] Failed to parse multipart servlet request; nested exception is java.lang.IllegalStateException: Unable to process parts as no multi-part configuration has been provided

Controller中接收文件的代码如下：

@RequestMapping(method = RequestMethod.POST, value = "/file/upload")
public
@ResponseBody
String uploadManageRule(@RequestParam(value = "file") MultipartFile file) {
    // TODO 把MultipartFile file file.getBytes();或者file.getInputStream();后保存文件处理
    return systemService.processUploadFile(file);
}

解决办法：

spring-servlet.xml增加CommonsMultipartResolver：

<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context"
       xmlns:p="http://www.springframework.org/schema/p" xmlns:mvc="http://www.springframework.org/schema/mvc"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
    http://www.springframework.org/schema/beans/spring-beans.xsd
    http://www.springframework.org/schema/context
    http://www.springframework.org/schema/context/spring-context.xsd
    http://www.springframework.org/schema/mvc
    http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd">
    
    <!--增加CommonsMultipartResolver-->
    <bean id="multipartResolver"
      class="org.springframework.web.multipart.commons.CommonsMultipartResolver"
      p:defaultEncoding="utf-8" p:maxUploadSize="10485760000"
      p:maxInMemorySize="40960" />

</beans>

Spring上传文件报错的解决（CommonsMultipartResolver）

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