Question

到目前为止，我有一个表格可以填写并有3个可能的文件可以上传，并保存为数据库条目，并作为电子邮件发送，文件作为附件。

我没有立刻注意到它，但我认为我错过了一些东西，因为虽然文件得到了正确的类型和名称，但它们都没有内容，文件大小为64b。

创建页面相关内容

@using (Html.BeginForm("Create", "RequestForm", FormMethod.Post, new { id = "ctFRM", enctype = "multipart/form-data", @role = "form" }))
{  
<div class="row">
      <div class="col-xs-12">
           <label>Attachments</label>
      </div>
      <div class="col-xs-11" style="border: 1px solid #dedede; border-radius: 5px; padding: 5px; margin: 0 15px; ">
           <input type="file" name="AttachmentId1" /><br />
           <input type="file" name="AttachmentId2" /><br />
           <input type="file" name="AttachmentId3" />
      </div>
</div>

控制器操作相关内容

[HttpPost]
public ActionResult Create(SDRequestVM sdvm, FormCollection fc)
{
     SDRequest sdr = sdvm.sdr;
     MailMessage msg = new MailMessage();


#region Attachment Code

            if (Request != null)
            {
                HttpPostedFileBase crfile = Request.Files["AttachmentId1"];

                if ((crfile != null) && (crfile.ContentLength > 0) && !string.IsNullOrEmpty(crfile.FileName))
                {
                    string fileName = crfile.FileName;
                    string fileContentType = crfile.ContentType;
                    byte[] fileBytes = new byte[crfile.ContentLength];
                    crfile.InputStream.Read(fileBytes, 0, Convert.ToInt32(crfile.ContentLength));
                    FileLibrary fl = new FileLibrary();
                    fl.FileName = fileName;
                    fl.FileType = fileContentType;
                    fl.FileContent = fileBytes;
                    fl.CreatedAt = DateTime.Now;
                    fl.CreatedBy = HttpContext.Request.LogonUserIdentity.User.Value;
                    db.FileLibraries.Add(fl);
                    db.SaveChanges();
                    sdr.AttachmentId1 = fl.Id;
                    msg.Attachments.Add(new Attachment(crfile.InputStream, crfile.FileName));
                }
                HttpPostedFileBase od1 = Request.Files["AttachmentId2"];

                if ((od1 != null) && (od1.ContentLength > 0) && !string.IsNullOrEmpty(od1.FileName))
                {
                    string fileName = od1.FileName;
                    string fileContentType = od1.ContentType;
                    byte[] fileBytes = new byte[od1.ContentLength];
                    od1.InputStream.Read(fileBytes, 0, Convert.ToInt32(od1.ContentLength));
                    FileLibrary fl = new FileLibrary();
                    fl.FileName = fileName;
                    fl.FileType = fileContentType;
                    fl.FileContent = fileBytes;
                    fl.CreatedAt = DateTime.Now;
                    fl.CreatedBy = HttpContext.Request.LogonUserIdentity.User.Value;
                    db.FileLibraries.Add(fl);
                    db.SaveChanges();
                    sdr.AttachmentId2 = fl.Id;
                    msg.Attachments.Add(new Attachment(od1.InputStream, od1.FileName));
                }
                HttpPostedFileBase od2 = Request.Files["AttachmentId3"];

                if ((od2 != null) && (od2.ContentLength > 0) && !string.IsNullOrEmpty(od2.FileName))
                {
                    string fileName = od2.FileName;
                    string fileContentType = od2.ContentType;
                    byte[] fileBytes = new byte[od2.ContentLength];
                    od2.InputStream.Read(fileBytes, 0, Convert.ToInt32(od2.ContentLength));
                    FileLibrary fl = new FileLibrary();
                    fl.FileName = fileName;
                    fl.FileType = fileContentType;
                    fl.FileContent = fileBytes;
                    fl.CreatedAt = DateTime.Now;
                    fl.CreatedBy = HttpContext.Request.LogonUserIdentity.User.Value;
                    db.FileLibraries.Add(fl);
                    db.SaveChanges();
                    sdr.AttachmentId3 = fl.Id;
                    msg.Attachments.Add(new Attachment(od2.InputStream, od2.FileName));
                }
            }

            #endregion Attachment Code

保存/电子邮件发送控制器代码

db.SDRequests.Add(sdr);
db.SaveChanges();
SmtpClient c = new SmtpClient();
c.Send(msg);
return RedirectToAction("Confirmation");

Webconfig邮件设置

<system.net>
    <mailSettings>
      <smtp from="ExampleAddress@example.example3.uk">
        <network host="smtp.example2.example3.uk" port="25" />
      </smtp>
    </mailSettings>
  </system.net>

据我所知，逐步完成代码它应该可以工作，除非我在file.InputStream中犯了一个错误，它被添加为msg的新附件。

非常感谢任何帮助。

Answer 1

你可以在web.config中试试这行吗？

<system.web>
<httpRuntime maxRequestLength="10240"  />
</system.web>

MVC输入文件作为电子邮件附件发送但内容已清除且文件大小始终为64b

1 个答案: