(转)ASP.Net邮件发送类

桃扇骨 2022-08-01 15:55 179阅读 0赞

ASP.Net邮件发送类

本文转自：[http://www.pcstu.com/program/Asp\_net/sl/20070706/52523.html][http_www.pcstu.com_program_Asp_net_sl_20070706_52523.html]

说明：本文没有测试，但看起来似乎不能用于发送附件，如要发送附件，可参考：[http://blog.csdn.net/lff642/archive/2008/07/15/2654346.aspx][http_blog.csdn.net_lff642_archive_2008_07_15_2654346.aspx]

using System;  
using System.Text;  
using System.IO;  
using System.Net;  
using System.Net.Sockets;

namespace OSLeagueForumXP.Components  
\{  
/// <summary>  
/// TcpClient派生类，用来进行SMTP服务器的连接工作  
/// </summary>  
public class SMTPClient : TcpClient  
\{  
/// <summary>  
/// 进行SMTP服务器的连接  
/// </summary>  
public SMTPClient()  
\{  
\}  
/// <summary>  
/// 是否以连接  
/// </summary>  
/// <returns>连接为True，不连接为False</returns>  
public bool isConnected()  
\{  
return Active;  
\}  
  
/// <summary>  
/// 向服务器发送命令  
/// </summary>  
/// <param name="Command">命令</param>  
public void SendCommandToServer(string Command)  
\{  
NetworkStream ns = this.GetStream() ;  
byte\[\] WriteBuffer ;  
WriteBuffer = new byte\[1024\] ;  
WriteBuffer = Encoding.Default.GetBytes(Command);  
ns.Write(WriteBuffer,0,WriteBuffer.Length);  
return ;  
\}  
  
/// <summary>  
/// 取得服务器反馈信息  
/// </summary>  
/// <returns>字符串</returns>  
public string GetServerResponse()  
\{  
int StreamSize ;  
string ReturnValue = "" ;  
byte\[\] ReadBuffer ;  
NetworkStream ns = this.GetStream() ;  
ReadBuffer = new byte\[1024\] ;  
StreamSize = ns.Read(ReadBuffer,0,ReadBuffer.Length);  
if (StreamSize==0)  
\{  
return ReturnValue ;  
\}  
else  
\{  
ReturnValue = Encoding.Default.GetString(ReadBuffer);  
return ReturnValue;  
\}  
\}  
  
/// <summary>  
/// 判断返回的信息中是否有指定的SMTP代码出现  
/// </summary>  
/// <param name="Message">信息</param>  
/// <param name="SMTPCode">SMTP代码</param>  
/// <returns>存在返回False，不存在返回True</returns>  
public bool DoesStringContainSMTPCode(string Message,string SMTPCode)  
\{  
return(Message.IndexOf(SMTPCode,0,10)==-1)?false:true;  
\}

\} //结束类

/// <summary>  
/// 发送邮件类  
/// </summary>  
public class SMTPMail  
\{  
/// <summary>  
/// 错误反馈信息  
/// </summary>  
private string strErrMessage = null;

/// <summary>  
/// SMTP服务器反馈的信息  
/// </summary>  
private string strResponse;

/// <summary>  
/// 构造函数  
/// </summary>  
public SMTPMail()  
\{  
strErrMessage = "";  
strResponse = "";  
\}

/// <summary>  
/// 取得错误反馈信息  
/// </summary>  
public string ErrorMessage  
\{  
get  
\{  
return strErrMessage ;  
\}  
\}

/// <summary>  
/// 取得SMTP服务器反馈的信息  
/// </summary>  
public string ServerResponse  
\{  
get  
\{  
return strResponse;  
\}  
\}

/// <summary>  
/// 邮件发送优先级  
/// </summary>  
public enum Prioritys  
\{  
/// <summary>  
/// 最高级别  
/// </summary>  
HIGH = 1,  
/// <summary>  
/// 默认级别  
/// </summary>  
NORMAL = 3,  
/// <summary>  
/// 最低级别  
/// </summary>  
LOW = 5  
\}  
  
/// <summary>  
/// 进行BASE64编码  
/// </summary>  
/// <param name="Data">数据</param>  
/// <returns>字符串</returns>  
private string Encode(string Data)  
\{  
byte\[\] bteData;  
bteData = Encoding.Default.GetBytes(Data);  
return Convert.ToBase64String(bteData);  
\}  
  
/// <summary>  
/// 进行BASE64解码  
/// </summary>  
/// <param name="Data">数据</param>  
/// <returns>字符串</returns>  
private string Decode(string Data)  
\{  
byte\[\] bteData;  
bteData = Convert.FromBase64String(Data);  
return Encoding.Default.GetString(bteData);  
\}  
  
/// <summary>  
/// 发送邮件  
/// </summary>  
/// <param name="SmtpHost">SMTP服务器</param>  
/// <param name="Port">SMTP服务器端口</param>  
/// <param name="From">邮件发送者</param>  
/// <param name="DisplayFromName">显示的发送者名称</param>  
/// <param name="Authentication">是否进行认证</param>  
/// <param name="UserName">认证用户名</param>  
/// <param name="Password">认证密码</param>  
/// <param name="To">邮件接收者</param>  
/// <param name="DisplayToName">显示的接收者名称</param>  
/// <param name="Priority">优先级</param>  
/// <param name="Html">是否为HTML</param>  
/// <param name="Base">URL</param>  
/// <param name="Subject">邮件主题</param>  
/// <param name="Message">邮件内容</param>  
public void SendMail(string SmtpHost,int Port,string From,string DisplayFromName,bool Authentication,string UserName,string Password,string To,string DisplayToName,Prioritys Priority,bool Html,string Base,string Subject,string Message)  
\{  
try  
\{  
string strResponseNumber;  
SMTPClient smtpcMail = new SMTPClient();  
smtpcMail.Connect(SmtpHost,Port);  
bool bolConnect = smtpcMail.isConnected();  
  
//判断是否进行了连接  
if (!bolConnect)  
\{  
strErrMessage = "Smtp服务器连接失败...";  
return;  
\}  
  
//读取反馈信息  
strResponseNumber = smtpcMail.GetServerResponse();  
if (smtpcMail.DoesStringContainSMTPCode(strResponseNumber,"220"))  
\{  
this.strResponse += strResponseNumber;  
\}  
else  
\{  
this.strErrMessage = "连接失败" + strResponseNumber;  
return ;  
\}  
  
int intBuffer = 0;  
int intArray = 0;  
if(Authentication)  
\{  
intBuffer = 9;  
\}  
else  
\{  
intBuffer = 6;  
\}  
string\[\] strSendBuffer = new string\[intBuffer\];  
string\[\] strResponseCode = \{"220","250","251","354","221","334","235"\}; // success codes from SMTP server  
  
string strData = "";  
strData = string.Concat("HELO ",SmtpHost);  
strData = string.Concat(strData,"/r/n");  
strSendBuffer\[intArray\] = strData;  
intArray = intArray+1;  
  
if(Authentication)  
\{  
strData = "";  
strData = string.Concat("AUTH LOGIN","/r/n");  
strData = string.Concat(strData,"/r/n");  
strSendBuffer\[intArray\] = strData;  
intArray = intArray+1;  
  
strData = "";  
strData = string.Concat(Encode(UserName),"/r/n");  
strData = string.Concat(strData,"/r/n");  
strSendBuffer\[intArray\] = strData;  
intArray = intArray+1;  
  
strData = "";  
strData = string.Concat(Encode(Password),"/r/n");  
strData = string.Concat(strData,"/r/n");  
strSendBuffer\[intArray\] = strData;  
intArray = intArray+1;  
\}  
  
strData = "";  
strData = string.Concat("MAIL FROM: ","<" + From + ">" + "AUTH=" + From);  
strData = string.Concat(strData,"/r/n");  
strSendBuffer\[intArray\] = strData;  
intArray = intArray+1;  
  
strData = "";  
strData = string.Concat("RCPT TO: ","<" + To + ">");  
strData = string.Concat(strData,"/r/n");  
strSendBuffer\[intArray\] = strData;  
intArray = intArray+1;  
  
strData = "" ;  
strData = string.Concat("DATA","/r/n");  
strSendBuffer\[intArray\] = strData ;  
intArray = intArray+1;  
  
strData = "" ;  
strData = string.Concat("From: ",DisplayFromName + "<" + From + ">");  
strData = string.Concat(strData,"/r/n" );  
strData = string.Concat(strData,"To: " );  
strData = string.Concat(strData,DisplayToName + "<" + To + ">");  
strData = string.Concat(strData,"/r/n" );  
strData = string.Concat(strData,"Subject: " );  
strData = string.Concat(strData,Subject);  
strData = string.Concat(strData,"/r/n");  
strData = string.Concat(strData,"MIME-Version: 1.0" );  
strData = string.Concat(strData,"/r/n");  
strData = string.Concat(strData,"X-Priority: " + Priority);  
strData = string.Concat(strData,"/r/n");  
strData = string.Concat(strData,"X-MSMail-Priority: " + Priority);  
strData = string.Concat(strData,"/r/n");  
if(Html)  
\{  
strData = string.Concat(strData,"Content-Type: text/html;" );  
\}  
else  
\{  
strData = string.Concat(strData,"Content-Type: text/plain;" );  
\}  
strData = string.Concat(strData,"/r/n");  
strData = string.Concat(strData,"charset=/"iso-8859-1/"" );  
strData = string.Concat(strData,"/r/n");  
if(Html == true)  
\{  
strData = string.Concat(strData,"Content-Transfer-Encoding: text/html;" );  
\}  
else  
\{  
strData = string.Concat(strData,"Content-Transfer-Encoding: text/plain;" );  
\}  
strData = string.Concat(strData,"/r/n");  
strData = string.Concat(strData,"Content-Base: /"" + Base + "/"" );  
strData = string.Concat(strData,"/r/n" + "/r/n");  
  
strData = string.Concat(strData,Message);  
strData = string.Concat(strData,"/r/n./r/n");  
strSendBuffer\[intArray\] = strData;  
intArray = intArray+1;  
  
strData = "" ;  
strData = string.Concat(strData,"QUIT/r/n");  
strSendBuffer\[intArray\] = strData;  
intArray = intArray+1;  
  
int i = 0 ;  
  
while(i < strSendBuffer.Length)  
\{  
smtpcMail.SendCommandToServer(strSendBuffer\[i\]);  
strResponseNumber = smtpcMail.GetServerResponse();  
  
for(int j=0;j<strResponseCode.Length;j++)  
\{  
if (smtpcMail.DoesStringContainSMTPCode(strResponseNumber,strResponseCode\[j\]))  
\{  
this.strResponse += strResponseNumber;  
this.strResponse += "<br>";  
break;  
\}  
else  
\{  
if(j==strResponseCode.Length-1)  
\{  
if(!smtpcMail.DoesStringContainSMTPCode(strResponseNumber,"500"))  
\{  
this.strErrMessage = "邮箱地址错误";  
\}  
else if(!smtpcMail.DoesStringContainSMTPCode(strResponseNumber,"501"))  
\{  
this.strErrMessage = "参数格式错误";  
\}  
else if(!smtpcMail.DoesStringContainSMTPCode(strResponseNumber,"502"))  
\{  
this.strErrMessage = "命令不可实现";  
\}  
else if(!smtpcMail.DoesStringContainSMTPCode(strResponseNumber,"503"))  
\{  
this.strErrMessage = "服务器需要SMTP验证";  
\}  
else if(!smtpcMail.DoesStringContainSMTPCode(strResponseNumber,"504"))  
\{  
this.strErrMessage = "命令参数不可实现";  
\}  
else if(!smtpcMail.DoesStringContainSMTPCode(strResponseNumber,"421"))  
\{  
this.strErrMessage = "服务未就绪，关闭传输信道";  
\}  
else if(!smtpcMail.DoesStringContainSMTPCode(strResponseNumber,"450"))  
\{  
this.strErrMessage = "要求的邮件操作未完成，邮箱不可用（例如，邮箱忙）";  
\}  
else if(!smtpcMail.DoesStringContainSMTPCode(strResponseNumber,"550"))  
\{  
this.strErrMessage = "要求的邮件操作未完成，邮箱不可用（例如，邮箱未找到，或不可访问）";  
\}  
else if(!smtpcMail.DoesStringContainSMTPCode(strResponseNumber,"451"))  
\{  
this.strErrMessage = "放弃要求的操作；处理过程中出错";  
\}  
else if(!smtpcMail.DoesStringContainSMTPCode(strResponseNumber,"551"))  
\{  
this.strErrMessage = "用户非本地，请尝试<forward-path>";  
\}  
else if(!smtpcMail.DoesStringContainSMTPCode(strResponseNumber,"452"))  
\{  
this.strErrMessage = "系统存储不足，要求的操作未执行";  
\}  
else if(!smtpcMail.DoesStringContainSMTPCode(strResponseNumber,"552"))  
\{  
this.strErrMessage = "过量的存储分配，要求的操作未执行";  
\}  
else if(!smtpcMail.DoesStringContainSMTPCode(strResponseNumber,"553"))  
\{  
this.strErrMessage = "邮箱名不可用，要求的操作未执行（例如邮箱格式错误）";  
\}  
else if(!smtpcMail.DoesStringContainSMTPCode(strResponseNumber,"553"))  
\{  
this.strErrMessage = "邮箱名不可用，要求的操作未执行（例如邮箱格式错误）";  
\}  
else if(!smtpcMail.DoesStringContainSMTPCode(strResponseNumber,"432"))  
\{  
this.strErrMessage = "需要一个密码转换";  
\}  
else if(!smtpcMail.DoesStringContainSMTPCode(strResponseNumber,"534"))  
\{  
this.strErrMessage = "认证机制过于简单";  
\}  
else if(!smtpcMail.DoesStringContainSMTPCode(strResponseNumber,"538"))  
\{  
this.strErrMessage = "当前请求的认证机制需要加密";  
\}  
else if(!smtpcMail.DoesStringContainSMTPCode(strResponseNumber,"454"))  
\{  
this.strErrMessage = "临时认证失败";  
\}  
else if(!smtpcMail.DoesStringContainSMTPCode(strResponseNumber,"530"))  
\{  
this.strErrMessage = "需要认证";  
\}  
return;  
\}  
\}  
\}  
  
i++ ;  
\} // 结束循环  
\}  
catch(SocketException err)  
\{  
this.strErrMessage += err.Message + " " + err.StackTrace;  
\}  
catch(Exception e)  
\{  
this.strErrMessage += e.Message + " " + e.StackTrace;  
\}  
\} //结束邮件发送方法  
  
\} // 结束类  
\}

[http_www.pcstu.com_program_Asp_net_sl_20070706_52523.html]: http://www.pcstu.com/program/Asp_net/sl/20070706/52523.html
[http_blog.csdn.net_lff642_archive_2008_07_15_2654346.aspx]: http://blog.csdn.net/lff642/archive/2008/07/15/2654346.aspx