文件上传报HttpMediaTypeNotSupportedException: Content type ‘multipart/form-data；boundary=*****

在做文件上传时，采用@RequestBody接受映射参数，在如下代码测试时，出现报错

@RequestMapping(value = "/upload", method =RequestMethod.POST)
public String upload(@RequestParam("file") MultipartFile file, 
                     @RequestBody @Valid FileVO fileVO) {
...
}

控制面板上显示：WARN  org.springframework.web.servlet.mvc.support.DefaultHandlerExceptionResolver -Resolved [org.springframework.web.HttpMediaTypeNotSupportedException: Content type 'multipart/form-data;boundary=--------------------------117954444450080952702590;charset=UTF-8' not supported]

只需要将方法中接受参数的实体类前@RequestBody去除即可，因为接受文件本身就是form-data类型，不需要额外再加注解

@RequestMapping(value = "/upload", method =RequestMethod.POST)
public String upload(@RequestParam("file") MultipartFile file, 
                     @Valid FileVO fileVO) {
...
}

这样问题就得到了解决