asp調用C#編寫的DLL發送郵件

 

 

一直想寫一個asp能用發送郵件的服務器組件，不過用VC太麻煩了，一直都沒都手。

 

前兩天看一篇文章，說是asp怎麼調用C#寫的DLL，一試之下，果然可以，大喜，這下用來寫一個發送郵件的東東簡單了吧。

 

呵呵，非常簡單，一會就弄好了，不敢獨享，先看代碼：

 

using System; using System.Net.Mail; using System.Text; namespace IMELS { public class SendMail { public SendMail() { } private string _to = string.Empty; /// <summary> /// 收件人地址，多個用“,”號隔開 /// </summary> public string To { set { _to = value; } } private string _from = string.Empty; /// <summary> /// 發件人地址 /// </summary> public string From { set { _from = value; } } private string _fromName = string.Empty; /// <summary> /// 發件人顯示名稱 /// </summary> public string FromName { set { _fromName = value; } } private string _cc = string.Empty; /// <summary> /// 抄送，多個用“,”號隔開 /// </summary> public string CC { set { _cc = value; } } private string _bcc = string.Empty; /// <summary> /// 密抄，多個用“,”號隔開 /// </summary> public string BCC { set { _bcc = value; } } private string _charset = "GB2312"; /// <summary> /// 郵件正文的編碼 /// </summary> public string Charset { set { _charset = value; } } private string _contentType = "html"; /// <summary> /// 郵件格式(html or txt) /// </summary> public string ContentType { set { _contentType = value; } } private string _subject = string.Empty; /// <summary> /// 郵件標題 /// </summary> public string Subject { set { _subject = value; } } private string _body = string.Empty; /// <summary> /// 郵件內容 /// </summary> public string Body { set { _body = value; } } private string _smtp; /// <summary> /// SMTP服務器地址 /// </summary> public string Smtp { set { _smtp = value; } } private string _username; /// <summary> /// SMTP用戶名 /// </summary> public string Username { set { _username = value; } } /// <summary> /// SMTP密碼 /// </summary> private string _password; public string Password { set { _password = value; } } private int _port = 25; /// <summary> /// SMTP商品 /// </summary> public int Port { set { _port = value; } } /// <summary> /// 發送 /// </summary> public void Send() { MailAddress from = new MailAddress(_from, _fromName); MailMessage message = new MailMessage(); message.From = from; string[] toadd = _to.Split(','); foreach (string _add in toadd) { try { message.To.Add(new MailAddress(_add)); } catch(Exception e) { _error += "To Address Error : " + e.Message + "(" + _add + ");"; } } if (_cc != string.Empty) { string[] ccadd = _cc.Split(','); foreach (string _add in ccadd) { try { message.CC.Add(new MailAddress(_add)); } catch (Exception e) { _error += "CC Address Error : " + e.Message + "(" + _add + ");"; } } } if (_bcc != string.Empty) { string[] bccadd = _bcc.Split(','); foreach (string _add in bccadd) { try { message.Bcc.Add(new MailAddress(_add)); } catch (Exception e) { _error += "BCC Address Error : " + e.Message + "(" + _add + ");"; } } } message.Sender = from; message.Subject = _subject; message.Body = _body; if (_contentType == "html" || _contentType == string.Empty) { message.IsBodyHtml = true; } else { message.IsBodyHtml = false; } message.BodyEncoding = Encoding.GetEncoding(_charset); message.DeliveryNotificationOptions = DeliveryNotificationOptions.None; SmtpClient __smtp = new SmtpClient(); __smtp.Host = _smtp; __smtp.Port = _port; __smtp.UseDefaultCredentials = false; __smtp.Credentials = new System.Net.NetworkCredential(_username, _password); __smtp.DeliveryMethod = SmtpDeliveryMethod.Network; try { __smtp.Send(message); } catch (SmtpException e) { _error += "SMTP Error:" + e.Message + ";"; } } private string _error = string.Empty; /// <summary> /// 返回錯誤信息 /// </summary> public string Error { get { return _error; } } /// <summary> /// 清空錯誤信息 /// </summary> public void ClearErr() { _error = string.Empty; } } }

 

說一下具體實現過程：

 

1、首先新建一個類庫項目；打開項目屬性頁，在“應用程序”標籤設置程序集名稱爲“IMELS”（當然，這個你可以設置爲你喜歡的名字），輸出類型爲類庫，如圖：

 

點擊“程序集信息”，勾選“使程序集COM可見”，如圖：

 

2、“簽名”標籤，勾選“爲程序簽名”，如圖：

 

然後“在選擇強名稱密鑰文件”下拉列表中選擇密鑰文件，如果沒有密鑰文件，就選擇“新建”，這裏我選擇新建，如圖：

 

在“密鑰文件名稱”欄裏輸入密鑰的名稱，你可以選擇爲密鑰添加密碼保護它，我這裏沒有使用密碼。

然後爲項目添加一個類“SendMail ”，代碼就如上了。

 

3、代碼完成後，生成DLL文件，把DLL放到D：盤或別的什麼盤，不過最好不要放在系統盤，然後就是註冊了，註冊C#寫的DLL是不能用regsvr32的，要用regasm，格式爲：regasm /codebase d:/DLL/IMELS.dll。

 

這樣DLL的編寫和註冊都已完成了，下面就是應用了，asp中調用方法如下：

 

<% dim send set send = Server.CreateObject("IMELS.SendMail") send.From = "[e-mail]" send.FromName = "無問" send.Smtp = "smtp.163.com" send.Username = "用戶名" send.Password = "密碼" send.Subject = "asp調用C#編寫的DLL發送郵件測試標題" send.ContentType = "html" send.Charset = "gb2312" send.Body = "asp調用C#編寫的DLL發送郵件測試正文" send.To = "[e-mail]" send.CC = "抄送地址" send.BCC = "密抄地址" send.Send() Response.Write(send.Error) %>

 

好了，大功告成！！

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