Question

spring mvc 实现多个文件上传 List<MultipartFile> files = request.getFiles("file"); 报错

报错 request没有getFiles（""）方法
public String upload(MultipartHttpServletRequest request, @RequestParam() MultipartFile myFile,ModelMap modelMap){
List<MultipartFile> files = request.getFiles("file");
……
}
为什么，网上都是这么写的，是不是我少引入什么jar包或者配置文件问题？
<bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
<property name="maxUploadSize" value="1000000"/>
</bean>

Answer 1

CommonsMultipartResolver multipartResolver = new CommonsMultipartResolver(request.getSession().getServletContext());
//判断request是否有文件需要上传
if (multipartResolver.isMultipart(request)) {
//转换成多部分request
MultipartHttpServletRequest multiRequest = (MultipartHttpServletRequest) request;
//读取文件
List<MultipartFile> file = multiRequest.getFiles("file");

Answer 2

spring3.0+才有你说的这个fetFiles方法，估计你的spring版本比较低

Answer 3

MultipartHttpServletRequest mhs = (MultipartHttpServletRequest) request;
List<MultipartFile> files = mhs.getFiles("file");