.net 导入多个文件 FileUpload控件

在前端写FileUpload控件,想要多选文件，就要写属性AllowMultiple="true"。

这个方法是来自：https://www.cnblogs.com/ret00100/archive/2009/10/19/1585859.html

我把webconfig设定写死了，其实写哪里都一样。

注意：使用的时候出现循环数量不对，可能是由于此界面由多个文件上传控件，于是

var fileList = files.GetMultiple("fupd");是为了只取fupd这个控件中选择的文件们～

----------------------------202107更新，再次使用多文件上传，再次记录一下

 1 private void UploadImportFile()
 2         {
 3             HttpFileCollection files = HttpContext.Current.Request.Files;
 4             var fileList = files.GetMultiple("filename");  //filename是fileupload控件的名字
 5             for (int ifile = 0; ifile < fileList.Count; ifile++)
 6             {
 7                 HttpPostedFile postedfile = fileList[ifile];
 8                 String newName = DateTime.Now.ToString("yyyyMMddHHmmssffff");
 9                 SaveData(postedfile, hidtype.Value, hidtype.Value, this.HiddenID.Value, newName); //记录到数据库里
10                 string filename, fileExt;
11                 filename = System.IO.Path.GetFileName(postedfile.FileName);    //获取文件名
12                 fileExt = System.IO.Path.GetExtension(filename);    //获取文件后缀
13                 int MaxAllowUploadFileSize = 100000;    //定义允许上传文件大小
14                 string allowexts = "xls|xlsx|doc|docx|pdf|jpg|png|gif|jpeg|rar|zip|wps|et|dps";      //定义允许上传文件类型
15                 Regex allowext = new Regex(allowexts);
16                 if (postedfile.ContentLength < MaxAllowUploadFileSize && allowext.IsMatch(fileExt)) //检查文件大小及扩展名
17                 {
18                     postedfile.SaveAs(Server.MapPath("~/") + "uploadfiles\\" + newName + fileExt);    //uploadfiles为与本页面同一目录，可自行修改
19                 }
20                 else
21                 {
22                     Response.Write("<script>alert('不允许上传类型" + fileExt + "。)</script>");
23                 }
24             }
25         }

public void SaveData(HttpPostedFile files, string introduce, string newfilename, string formid, string physicsname)
        {
            string uploadpath = Server.MapPath("~/") + "oafiles\\";
            //保存文件 重命名                    
            Maticsoft.Eday.Model.com_attachs model = new Maticsoft.Eday.Model.com_attachs();
            String uuid = Guid.NewGuid().ToString();
            model.id = uuid;
            if (null != HttpContext.Current.Session["userid"])
                model.employeeid = HttpContext.Current.Session["userid"].ToString();
            if (null != HttpContext.Current.Session["username"])
                model.employeename = HttpContext.Current.Session["username"].ToString();
            model.createdate = DateTime.Now;
            model.updatedate = DateTime.Now;
            long size = files.ContentLength;
            model.filesize = size / (1024.00 * 1024) + "MB";
            String fileType = files.FileName.Substring(files.FileName.LastIndexOf('.') + 1, files.FileName.Length - files.FileName.LastIndexOf('.') - 1);
           
            if (fileType != "jpg" && fileType != "png" && fileType != "gif" && fileType != "jpeg" && fileType != "doc" && fileType != "docx" && fileType != "xls" && fileType != "xlsx" && fileType != "rar" && fileType != "zip" && fileType != "pdf" && fileType != "wps" && fileType != "et" && fileType != "dps")
            {
                MessageBox.Show(this, "请您上传符合规则的附件格式！");
                return;
            }
            model.filename = files.FileName;
            model.physicsname = physicsname + "." + fileType;
            model.newfilename = newfilename + "." + fileType;
            model.formid = formid;//记deptID
            model.introduce = introduce;
            model.filePath = uploadpath;
            model.isdelete = "1";
            //附件关联表保存
            Maticsoft.Eday.BLL.com_attachs bll = new Maticsoft.Eday.BLL.com_attachs();
            bll.Add(model);
        }