Question

enctype="multipart/form-data" 后台java怎么接收 file 的值？

Answer 1

boolean isMultipart = ServletFileUpload.isMultipartContent(request);//判断是否是表单文件类型
DiskFileItemFactory factory = new DiskFileItemFactory();
ServletFileUpload sfu = new ServletFileUpload(factory);
List items = sfu.parseRequest(request);//从request得到所有上传域的列表
for(Iterator iter = items.iterator();iter.hasNext();){
FileItem fileitem =(FileItem) iter.next();
if(!fileitem.isFormField()&&fileitem!=null){//判读不是普通表单域即是file
操作fileitem文件步骤，可以获取大小、路径
}
}