如何使用asp.net mvc webapi发送电子邮件附件 [英] how to send an email attachment using asp.net mvc webapi

问题描述

我有一个ASPMVC webapi应用程序，客户端将在其中附加附件。这个附件是表格byte []。但是在服务器端我们无法收到附件。



这是客户代码。

 StringBuilder sbAPIRequest =  new  StringBuilder（）; 
 sbAPIRequest.Append（  http：// localhost：58229 / api / SendEmailMessage） ; 
 sbAPIRequest.Append（ & From =）; 
 sbAPIRequest.Append（request.From）; 
 sbAPIRequest.Append（ & Subject =）; 
 sbAPIRequest.Append（request.Subject）; 
 sbAPIRequest.Append（ & To =）; 
 sbAPIRequest.Append（request.To）; 
 sbAPIRequest.Append（ & FileName =）; 
 sbAPIRequest.Append（request.FileName）; 
 sbAPIRequest.Append（ & Body =）; 
 sbAPIRequest.Append（request.Body）; 
 sbAPIRequest.Append（ & Data =）; 
 sbAPIRequest.Append（System.IO.File.ReadAllBytes（  File Path）） ; 
 HttpWebRequest httpWReq =（HttpWebRequest）WebRequest.Create（sbAPIRequest.ToString（））; 
 httpWReq.Method =   GET; 
 httpWReq.ContentType =   application / json; charset = UTF-8; 
 httpWReq.ContentLength =  0 ; 
 HttpWebResponse response =（HttpWebResponse）httpWReq.GetResponse（）; 

这是服务边码，即ASPMVC webapi

  public  IEnumerable< string>获取（[FromUri] Models.EmailMessageRequest emailMessage）
 {
 MailMessage _MailMessage =  new  MailMessage（）; 
 System.Net.Mail.Attachment附件; 
 List< string> Messages =  new  List< string>（）; 
  try  
 {
 UpdateMailAddressCollection（_MailMessage.Bcc，emailMessage.Bcc）; 
 _MailMessage.Body = emailMessage.Body; 
 UpdateMailAddressCollection（_MailMessage.CC，emailMessage.CC）; 
 _MailMessage.From = getMailAddress（emailMessage.From）; 
 _MailMessage.IsBodyHtml = emailMessage.IsBodyHtml; 
 _MailMessage.Subject = emailMessage.Subject; 
 UpdateMailAddressCollection（_MailMessage.To，emailMessage.To）; 
 _MailMessage.Priority = getPriority（emailMessage.Priority）; 
 
  if （emailMessage.Data！=  null &&&&＃emailMessage。数据[ 0 ]！=  0 ）
 {
 Stream _Stream =  new  MemoryStream（emailMessage.Data）; 
 attachment =  new 附件（_Stream，emailMessage.FileName）; 
 _MailMessage.Attachments.Add（附件）; 
} 
  string  _smtp_host =（ new  S2.Services.Contracts.Schemas。 Customer.AppSettingHelper（））smtp_host。 
 SmtpClient client =  new  SmtpClient（_smtp_host）; 
 client.Send（_MailMessage）; 
 response.Success =  true ; 
 response.Messages.Add（ 电子邮件已成功发送。）; 
} 
  catch （例外情况）
 {
 response.Messages.Add（ 内部异常）; 
 response.Success =  false ; 
} 
 
 Messages.Add（response.Messages.Select（x = >  x）.FirstOrDefault（）+  成功： + response.Success）; 
  return  Messages.ToList（）; 
} 

解决方案

你必须使用httpPostedFileBased在mvc中获取服务器端的完整文件信息。



您也可以参考以下链接



http://stackoverflow.com/questions/16030034/asp-净-MVC读取文件从 - httppostedfilebase-而不保存

I have an ASPMVC webapi application in which the client will attach an attachment. this attachment is the form byte[]. But on the server side we are not able to receive the attachment.

Here is the client code.

StringBuilder sbAPIRequest = new StringBuilder();
sbAPIRequest.Append("http://localhost:58229/api/SendEmailMessage");
sbAPIRequest.Append("&From=");
sbAPIRequest.Append(request.From);
sbAPIRequest.Append("&Subject=");
sbAPIRequest.Append(request.Subject);
sbAPIRequest.Append("&To=");
sbAPIRequest.Append(request.To);
sbAPIRequest.Append("&FileName=");
sbAPIRequest.Append(request.FileName);
sbAPIRequest.Append("&Body=");
sbAPIRequest.Append(request.Body);
sbAPIRequest.Append("&Data=");
sbAPIRequest.Append(System.IO.File.ReadAllBytes("File Path"));
HttpWebRequest httpWReq = (HttpWebRequest)WebRequest.Create(sbAPIRequest.ToString());
httpWReq.Method = "GET";
httpWReq.ContentType = "application/json;charset=UTF-8";
httpWReq.ContentLength = 0;
HttpWebResponse response = (HttpWebResponse)httpWReq.GetResponse();

Here is the service Side Code i.e. ASPMVC webapi

public IEnumerable<string> Get([FromUri] Models.EmailMessageRequest emailMessage)
        {
            MailMessage _MailMessage = new MailMessage();
            System.Net.Mail.Attachment attachment;
            List<string> Messages = new List<string>();    
            try
            {
                        UpdateMailAddressCollection(_MailMessage.Bcc, emailMessage.Bcc);
                        _MailMessage.Body = emailMessage.Body;
                        UpdateMailAddressCollection(_MailMessage.CC, emailMessage.CC);
                        _MailMessage.From = getMailAddress(emailMessage.From);
                        _MailMessage.IsBodyHtml = emailMessage.IsBodyHtml;
                        _MailMessage.Subject = emailMessage.Subject;
                        UpdateMailAddressCollection(_MailMessage.To, emailMessage.To);
                        _MailMessage.Priority = getPriority(emailMessage.Priority);

                        if (emailMessage.Data != null && emailMessage.Data[0] != 0)
                        {
                            Stream _Stream = new MemoryStream(emailMessage.Data);
                            attachment = new Attachment(_Stream, emailMessage.FileName);
                            _MailMessage.Attachments.Add(attachment);
                        }
                        string _smtp_host = (new S2.Services.Contracts.Schemas.Customer.AppSettingHelper()).smtp_host;
                        SmtpClient client = new SmtpClient(_smtp_host);
                        client.Send(_MailMessage);
                        response.Success = true;
                        response.Messages.Add("Email Sent successfully.");
            }
            catch (Exception ex)
            {
                response.Messages.Add("Internal Exception");
                response.Success = false;
            }

            Messages.Add(response.Messages.Select(x => x).FirstOrDefault() + " Success:" + response.Success);
            return Messages.ToList();
        }

解决方案

you have to use httpPostedFileBased to get the full file information on the server side in mvc.

you can also refer the link below

http://stackoverflow.com/questions/16030034/asp-net-mvc-read-file-from-httppostedfilebase-without-save

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