asp呼叫C#所寫的DLL發送郵件

作者：Eve Cole 更新時間：2009-06-23 17:00:02

一直想寫一個asp能用發送郵件的伺服器元件，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怎麼呼叫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，一會兒就弄好了，不敢獨享，先看程式碼：

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using System;
using System.Net.Mail;

using System.Text;

namespace IMELS

{

public class SendMail

{

public SendMail() { }

private string _to = string .Empty;

/// <summary>

/// 收件者地址，多個以「,」號隔開

/// </summary>

public string To

{

set { _to = value; }

}

private string _from = string .Empty;

/// <summary>

/// 寄件者地址

/// </summary>

public string From

{

設定{ _from = value; }

}

private string _fromName = string .Empty;

/// <summary>

/// 寄件者顯示名稱

/// </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

{

設定{ _cc = value; }

}

private string _bcc = string .Empty;

/// <summary>

/// 密抄，多個用「,」號隔開

/// </summary>

public string BCC

{

設定{ _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

{

設定{ _contentType = 值; }

}

private string _subject = string .Empty;

/// <summary>

/// 郵件標題

/// </summary>

public string Subject

{

set { _subject = 值; }

}

private string _body = string .Empty;

/// <summary>

/// 郵件內容

/// </summary>

public string Body

{

設定{ _body = value; }

}

private string _smtp;

/// <summary>

/// SMTP伺服器位址

/// </summary>

public string Smtp

{

設置{ _smtp = value; }

}

private string _username;

/// <summary>

/// SMTP使用者名稱

/// </summary>

public string Username

{

設置{ _username = 值; }

}

/// <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

{

設置{ _port = value; }

}

/// <summary>

/// 傳送

/// </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>

/// 回傳錯誤訊息

/// </summary>

public string Error

{

get { return _error; }

}

/// <summary>

/// 清空錯誤訊息

/// </summary>

public void ClearErr()

{

_error = string .Empty;

}

using System; using System.Net.Mail; using System.Text; namespace IMELS { public class SendMail { public SendMail() { } private string _to = string.Empty; /// <summary> /// 收件者地址，多個用「,」號隔開/// </summary> public string To { set { _to = value; } } private string _from = string.Empty; /// <summary> /// 寄件者地址/ // </summary> public string From { set { _from = value; } } private string _fromName = string.Empty; /// <summary> /// 寄件者顯示名稱/// </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伺服器位址/// </summary> public string Smtp { set { _smtp = value; } } private string _username; /// <summary> /// SMTP使用者名稱/// </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> /// 傳送/// </summary> public void Send() { MailAddress from = new MailAddress(_from, _fromName); MailMessage message = new MailMessage(); message.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.Getco); message.DeliveryNotificationOptions = DeliveryNotificationOptions.None; SmtpClient __smtp = new SmtpClient(); __smtp.Host = _smtp; __smtp.Port = _port; __smtp.UseDefaultCredentials = f falage電話; __smtp.DeliveryMethod = SmtpDeliveryMethod.Network; try { __smtp.Send(message); } catch (SmtpException e) { _error += "SMTP Error:" + e.Message + ";"; } } private string _error = string. ; /// <summary> /// 回傳錯誤訊息/// </summary> public string Error { get { return _error; } } /// <summary> /// 清空錯誤訊息/// </summary> public void ClearErr() { _error = string.Empty; } } }

說一下具體實現過程：

1.先新建一個類別庫專案；開啟專案屬性頁，在「應用程式」標籤設定組件名稱為「IMELS」（當然，這個你可以設定為你喜歡的名字），輸出類型為類別庫，如圖：

點選“程序集資訊”，勾選“使程式集COM可見”，如圖：

2、“簽名”標籤，勾選“為程式簽名”，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”，這裡我選擇新建，如圖：

在「密鑰檔案名稱」欄裡輸入密鑰的名稱，你可以選擇為密鑰添加密碼保護它，我這裡沒有使用密碼。

然後為專案添加一個類別“SendMail ”，程式碼就如上了。

3.代碼完成後，產生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，格式為：regasm /codebase d:DLLIMELS.dll。

這樣DLL的寫法和註冊都已經完成了，以下就是應用了，asp中呼叫方法如下：

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<%
dim send
set send = Server.CreateObject( "IMELS.SendMail" )
send.From = "[email protected]"
send.FromName = "無問"
send.Smtp = "smtp.163.com"
發送.Username = "使用者名稱"
send.Password = "密碼"
send.Subject = "asp呼叫C#所寫的DLL傳送郵件測試標題"
send.ContentType = "html"
發送.Charset = "gb2312"
send.Body = "asp呼叫C#所寫的DLL傳送郵件測試正文"
send. To = "[email protected]"
send.CC = "抄送地址"
send.BCC = "密抄地址"
send.Send()
Response.Write(send. Error )
%>

好了，大功告成！！