ASP.NET 实现邮件发送和接受的功能(Sockets)

  1. 云栖社区>
  2. 博客>
  3. 正文

ASP.NET 实现邮件发送和接受的功能(Sockets)

老朱教授 2017-11-26 09:13:00 浏览637
展开阅读全文

前台代码:html

ExpandedBlockStart.gif<%@ Page language="c#" Codebehind="SocketMail.aspx.cs" AutoEventWireup="false" Inherits="UseFramework2.MailSys.Mail" %>
None.gif
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" >
None.gif
<HTML>
None.gif    
<HEAD>
None.gif        
<title>Mail</title>
None.gif        
<meta content="Microsoft Visual Studio 7.0" name="GENERATOR">
None.gif        
<meta content="C#" name="CODE_LANGUAGE">
None.gif        
<meta content="JavaScript" name="vs_defaultClientScript">
None.gif        
<meta content="http://schemas.microsoft.com/intellisense/ie5" name="vs_targetSchema">
None.gif    
</HEAD>
None.gif    
<body MS_POSITIONING="GridLayout">
None.gif        
<form id="Mail" method="post" runat="server">
None.gif            
<FONT face="宋体">
None.gif                
<asp:TextBox id="tbServer" style="Z-INDEX: 101; LEFT: 143px; POSITION: absolute; TOP: 104px" runat="server"></asp:TextBox>
None.gif                
<asp:TextBox id="tbSend" style="Z-INDEX: 120; LEFT: 413px; POSITION: absolute; TOP: 223px" runat="server"></asp:TextBox>
None.gif                
<asp:Label id="Label10" style="Z-INDEX: 119; LEFT: 334px; POSITION: absolute; TOP: 231px" runat="server">发件人</asp:Label>
None.gif                
<asp:Button id="btnSend" style="Z-INDEX: 118; LEFT: 441px; POSITION: absolute; TOP: 325px" runat="server" Width="76" Text="发送" Height="25"></asp:Button>
None.gif                
<asp:Label id="Label9" style="Z-INDEX: 117; LEFT: 332px; POSITION: absolute; TOP: 179px" runat="server">收件人</asp:Label>
None.gif                
<asp:Label id="Label8" style="Z-INDEX: 116; LEFT: 329px; POSITION: absolute; TOP: 278px" runat="server">邮件主题</asp:Label>
None.gif                
<asp:Label id="Label7" style="Z-INDEX: 115; LEFT: 320px; POSITION: absolute; TOP: 102px" runat="server">SMTP服务器</asp:Label>
None.gif                
<asp:TextBox id="tbSubject" style="Z-INDEX: 114; LEFT: 415px; POSITION: absolute; TOP: 270px" runat="server"></asp:TextBox>
None.gif                
<asp:TextBox id="tbReceive" style="Z-INDEX: 113; LEFT: 416px; POSITION: absolute; TOP: 171px" runat="server"></asp:TextBox>
None.gif                
<asp:TextBox id="tbSmtp" style="Z-INDEX: 112; LEFT: 419px; POSITION: absolute; TOP: 100px" runat="server"></asp:TextBox>
None.gif                
<asp:Label id="Label5" style="Z-INDEX: 109; LEFT: 54px; POSITION: absolute; TOP: 245px" runat="server">密码</asp:Label>
None.gif                
<asp:Label id="Label4" style="Z-INDEX: 108; LEFT: 54px; POSITION: absolute; TOP: 181px" runat="server">用户名称</asp:Label>
None.gif                
<asp:label id="Label1" style="Z-INDEX: 106; LEFT: 414px; POSITION: absolute; TOP: 18px" runat="server" Width="175px" Font-Names="隶书" Font-Size="XX-Large">发邮件</asp:label>
None.gif                
<asp:label id="Label2" style="Z-INDEX: 105; LEFT: 85px; POSITION: absolute; TOP: 14px" runat="server" Width="175px" Font-Names="隶书" Font-Size="XX-Large">收邮件</asp:label>
None.gif                
<asp:TextBox id="tbUser" style="Z-INDEX: 102; LEFT: 143px; POSITION: absolute; TOP: 182px" runat="server"></asp:TextBox>
None.gif                
<asp:TextBox id="tbPass" style="Z-INDEX: 103; LEFT: 143px; POSITION: absolute; TOP: 242px" runat="server" TextMode="Password"></asp:TextBox>
None.gif                
<asp:TextBox id="tbBody" style="Z-INDEX: 104; LEFT: 141px; POSITION: absolute; TOP: 363px" runat="server" Width="458px" Height="87px"></asp:TextBox>
None.gif                
<asp:Label id="Label3" style="Z-INDEX: 107; LEFT: 54px; POSITION: absolute; TOP: 103px" runat="server">POP3服务器</asp:Label>
None.gif                
<asp:Button id="btnCheck" style="Z-INDEX: 110; LEFT: 67px; POSITION: absolute; TOP: 315px" runat="server" Width="76" Text="检查" Height="25"></asp:Button>
None.gif                
<asp:Label id="Label6" style="Z-INDEX: 111; LEFT: 60px; POSITION: absolute; TOP: 387px" runat="server" Width="71px" Height="27px">邮件正文</asp:Label>
None.gif                
<asp:DropDownList id="ddlNew" style="Z-INDEX: 121; LEFT: 200px; POSITION: absolute; TOP: 319px" runat="server" AutoPostBack="True"></asp:DropDownList></FONT></form>
None.gif    
</body>
None.gif
</HTML>

后台代码:cs
None.gifusing System;
None.gif
using System.Collections;
None.gif
using System.ComponentModel;
None.gif
using System.Data;
None.gif
using System.Drawing;
None.gif
using System.Web;
None.gif
using System.Web.SessionState;
None.gif
using System.Web.UI;
None.gif
using System.Web.UI.WebControls;
None.gif
using System.Web.UI.HtmlControls;
None.gif
using System.Net.Sockets;
None.gif
using System.Net;
None.gif
using System.IO;
None.gif
using System.Web.Mail;
None.gif
using System.Text;
None.gif
None.gif
namespace UseFramework2.MailSys
ExpandedBlockStart.gif
{
ExpandedSubBlockStart.gif    
/// <summary>
InBlock.gif    
/// Mail 的摘要说明。
ExpandedSubBlockEnd.gif    
/// </summary>

InBlock.gif    public class Mail : System.Web.UI.Page
ExpandedSubBlockStart.gif    
{
InBlock.gif        
protected System.Web.UI.WebControls.TextBox tbServer;
InBlock.gif        
protected System.Web.UI.WebControls.TextBox tbUser;
InBlock.gif        
protected System.Web.UI.WebControls.TextBox tbPass;
InBlock.gif        
protected System.Web.UI.WebControls.Label Label2;
InBlock.gif        
protected System.Web.UI.WebControls.Label Label1;
InBlock.gif        
protected System.Web.UI.WebControls.Label Label3;
InBlock.gif        
protected System.Web.UI.WebControls.Label Label4;
InBlock.gif        
protected System.Web.UI.WebControls.Label Label5;
InBlock.gif        
protected System.Web.UI.WebControls.Button btnCheck;
InBlock.gif        
protected System.Web.UI.WebControls.Label Label6;
InBlock.gif        
protected System.Web.UI.WebControls.Label Label7;
InBlock.gif        
protected System.Web.UI.WebControls.TextBox tbSmtp;
InBlock.gif        
protected System.Web.UI.WebControls.TextBox tbReceive;
InBlock.gif        
protected System.Web.UI.WebControls.TextBox tbSubject;
InBlock.gif        
protected System.Web.UI.WebControls.Label Label8;
InBlock.gif        
protected System.Web.UI.WebControls.Label Label9;
InBlock.gif        
protected System.Web.UI.WebControls.Button btnSend;
InBlock.gif        
protected System.Web.UI.WebControls.Label Label10;
InBlock.gif        
protected System.Web.UI.WebControls.TextBox tbSend;
InBlock.gif        
protected System.Web.UI.WebControls.TextBox tbBody;
InBlock.gif        
protected System.Web.UI.WebControls.DropDownList ddlNew;
InBlock.gif    
InBlock.gif        
private void Page_Load(object sender, System.EventArgs e)
ExpandedSubBlockStart.gif        
{
InBlock.gif            
// 在此处放置用户代码以初始化页面
ExpandedSubBlockEnd.gif
        }

InBlock.gif
ContractedSubBlock.gif        
Web Form Designer generated code
InBlock.gif
InBlock.gif        
private void btnCheck_Click(object sender, System.EventArgs e)
ExpandedSubBlockStart.gif        
{
InBlock.gif            POP3 pop 
= new POP3(tbServer.Text,tbUser.Text,tbPass.Text);
InBlock.gif            
int n = pop.GetNumberOfNewMessages();
InBlock.gif            
if(n==-1)
ExpandedSubBlockStart.gif            
{
InBlock.gif                Response.Write(
"<script language='javascript'>alert('服务器连接错误!')</script>");
InBlock.gif                
return;
ExpandedSubBlockEnd.gif            }

InBlock.gif            ddlNew.Items.Clear();
InBlock.gif            
for(int i=1;i<=n;i++)
InBlock.gif                ddlNew.Items.Add(
""+i.ToString()+"封邮件");
InBlock.gif            
if(n>0)
ExpandedSubBlockStart.gif            
{
InBlock.gif                MailMessage msg 
=  pop.GetNewMessages(0);
InBlock.gif                
if(msg!=null)
InBlock.gif                    tbBody.Text 
= msg.Body;
ExpandedSubBlockEnd.gif            }

InBlock.gif
ExpandedSubBlockEnd.gif        }

InBlock.gif
InBlock.gif        
private void ddlNew_SelectedIndexChanged(object sender, System.EventArgs e)
ExpandedSubBlockStart.gif        
{
InBlock.gif            POP3 pop 
= new POP3(tbServer.Text,tbUser.Text,tbPass.Text);
InBlock.gif            
int n = ddlNew.SelectedIndex;
InBlock.gif            
if(n>=0)
ExpandedSubBlockStart.gif            
{
InBlock.gif                MailMessage msg 
=  pop.GetNewMessages(n);
InBlock.gif                
if(msg!=null)
InBlock.gif                    tbBody.Text 
= msg.Body;
ExpandedSubBlockEnd.gif            }

ExpandedSubBlockEnd.gif        }

InBlock.gif
InBlock.gif        
private void btnSend_Click(object sender, System.EventArgs e)
ExpandedSubBlockStart.gif        
{
InBlock.gif            SMTP smtp 
= new SMTP();
InBlock.gif            
bool bSuccess = smtp.Send(tbSmtp.Text,25,tbSend.Text,tbReceive.Text,tbSubject.Text,tbBody.Text);
InBlock.gif            
if(bSuccess)
InBlock.gif                Response.Write(
"<script language='javascript'>alert('邮件发送成功!')</script>");
InBlock.gif            
else
InBlock.gif                Response.Write(
"<script language='javascript'>alert('邮件发送失败!')</script>");
InBlock.gif
ExpandedSubBlockEnd.gif        }

ExpandedSubBlockEnd.gif    }

InBlock.gif    
public class POP3
ExpandedSubBlockStart.gif    
{
InBlock.gif        
string POPServer;
InBlock.gif        
string user;
InBlock.gif        
string pwd;
InBlock.gif        NetworkStream ns;
InBlock.gif        StreamReader sr;
InBlock.gif
ExpandedSubBlockStart.gif        
public POP3(){}
InBlock.gif
InBlock.gif        
public POP3(string server, string _user, string _pwd)
ExpandedSubBlockStart.gif        
{
InBlock.gif            POPServer 
= server;
InBlock.gif            user 
= _user;
InBlock.gif            pwd 
= _pwd;
ExpandedSubBlockEnd.gif        }

InBlock.gif
InBlock.gif        
private bool Connect()
ExpandedSubBlockStart.gif        
{
InBlock.gif            TcpClient sender 
= new TcpClient(POPServer,110);
InBlock.gif            
byte[] outbytes;
InBlock.gif            
string input;
InBlock.gif
InBlock.gif            
try
ExpandedSubBlockStart.gif            
{
InBlock.gif                ns 
= sender.GetStream();
InBlock.gif                sr 
= new StreamReader(ns);
InBlock.gif
InBlock.gif                sr.ReadLine();
InBlock.gif                input 
= "user " + user + "\r\n";
InBlock.gif                outbytes 
= System.Text.Encoding.ASCII.GetBytes(input.ToCharArray());
InBlock.gif                ns.Write(outbytes,
0,outbytes.Length) ;
InBlock.gif                sr.ReadLine();
InBlock.gif            
InBlock.gif                input 
= "pass " + pwd + "\r\n";
InBlock.gif                outbytes 
= System.Text.Encoding.ASCII.GetBytes(input.ToCharArray());
InBlock.gif                ns.Write(outbytes,
0,outbytes.Length) ;
InBlock.gif                sr.ReadLine();
InBlock.gif                
return true;  
InBlock.gif        
ExpandedSubBlockEnd.gif            }

InBlock.gif            
catch
ExpandedSubBlockStart.gif            
{
InBlock.gif                
return false;
ExpandedSubBlockEnd.gif            }

ExpandedSubBlockEnd.gif        }

InBlock.gif
InBlock.gif        
private void Disconnect()
ExpandedSubBlockStart.gif        
{
InBlock.gif            
string input = "quit" + "\r\n";
InBlock.gif            Byte[] outbytes 
= System.Text.Encoding.ASCII.GetBytes(input.ToCharArray());
InBlock.gif            ns.Write(outbytes,
0,outbytes.Length);
InBlock.gif            ns.Close();
ExpandedSubBlockEnd.gif        }

InBlock.gif
InBlock.gif        
public int GetNumberOfNewMessages()
ExpandedSubBlockStart.gif        
{
InBlock.gif            
byte[] outbytes;
InBlock.gif            
string input;
InBlock.gif
InBlock.gif            
try
ExpandedSubBlockStart.gif            
{
InBlock.gif                Connect();
InBlock.gif
InBlock.gif                input 
= "stat" + "\r\n";
InBlock.gif                outbytes 
= System.Text.Encoding.ASCII.GetBytes(input.ToCharArray());
InBlock.gif                ns.Write(outbytes,
0,outbytes.Length);
InBlock.gif                
string resp = sr.ReadLine();
ExpandedSubBlockStart.gif                
string[] tokens = resp.Split(new Char[] {' '});
InBlock.gif
InBlock.gif                Disconnect();
InBlock.gif
InBlock.gif                
return Convert.ToInt32(tokens[1]);
ExpandedSubBlockEnd.gif            }

InBlock.gif            
catch
ExpandedSubBlockStart.gif            
{
InBlock.gif                
return -1;
ExpandedSubBlockEnd.gif            }

ExpandedSubBlockEnd.gif        }

InBlock.gif        
public ArrayList GetNewMessages(string subj)
ExpandedSubBlockStart.gif        
{
InBlock.gif
InBlock.gif            
int newcount;
InBlock.gif            ArrayList newmsgs 
= new ArrayList();
InBlock.gif
InBlock.gif            
try
ExpandedSubBlockStart.gif            
{
InBlock.gif                newcount 
= GetNumberOfNewMessages();
InBlock.gif                Connect();
InBlock.gif
InBlock.gif                
for(int n=1; n<newcount+1; n++)
ExpandedSubBlockStart.gif                
{
InBlock.gif                    ArrayList msglines 
= GetRawMessage(n);
InBlock.gif                    
string msgsubj = GetMessageSubject(msglines);
InBlock.gif                    
if(msgsubj.CompareTo(subj) == 0)
ExpandedSubBlockStart.gif                    
{
InBlock.gif                        System.Web.Mail.MailMessage msg 
= new MailMessage();
InBlock.gif                        msg.Subject 
= msgsubj;
InBlock.gif                        msg.From 
= GetMessageFrom(msglines);
InBlock.gif                        msg.Body 
= GetMessageBody(msglines);
InBlock.gif                        newmsgs.Add(msg);
InBlock.gif                        DeleteMessage(n);
ExpandedSubBlockEnd.gif                    }

ExpandedSubBlockEnd.gif                }

InBlock.gif
InBlock.gif                Disconnect();
InBlock.gif                
return newmsgs;
ExpandedSubBlockEnd.gif            }

InBlock.gif            
catch(Exception e)
ExpandedSubBlockStart.gif            
{
InBlock.gif                
return newmsgs;
ExpandedSubBlockEnd.gif            }

ExpandedSubBlockEnd.gif        }

InBlock.gif        
public MailMessage GetNewMessages(int nIndex)
ExpandedSubBlockStart.gif        
{
InBlock.gif            
int newcount;
InBlock.gif            System.Web.Mail.MailMessage msg 
= new MailMessage();
InBlock.gif
InBlock.gif            
try
ExpandedSubBlockStart.gif            
{
InBlock.gif                newcount 
= GetNumberOfNewMessages();
InBlock.gif                Connect();
InBlock.gif                
int n = nIndex+1;
InBlock.gif
InBlock.gif                
if(n<newcount+1)
ExpandedSubBlockStart.gif                
{
InBlock.gif                    ArrayList msglines 
= GetRawMessage(n);
InBlock.gif                    
string msgsubj = GetMessageSubject(msglines);
InBlock.gif                
InBlock.gif                    
InBlock.gif                    msg.Subject 
= msgsubj;
InBlock.gif                    msg.From 
= GetMessageFrom(msglines);
InBlock.gif                    msg.Body 
= GetMessageBody(msglines);
ExpandedSubBlockEnd.gif                }

InBlock.gif
InBlock.gif                Disconnect();
InBlock.gif                
return msg;
ExpandedSubBlockEnd.gif            }

InBlock.gif            
catch
ExpandedSubBlockStart.gif            
{
InBlock.gif                
return null;
ExpandedSubBlockEnd.gif            }

ExpandedSubBlockEnd.gif        }

InBlock.gif        
private ArrayList GetRawMessage (int messagenumber)
ExpandedSubBlockStart.gif        
{
InBlock.gif            Byte[] outbytes;
InBlock.gif            
string input;
InBlock.gif            
string line = "";
InBlock.gif
InBlock.gif            input 
= "retr " + messagenumber.ToString() + "\r\n";
InBlock.gif            outbytes 
= System.Text.Encoding.ASCII.GetBytes(input.ToCharArray());
InBlock.gif            ns.Write(outbytes,
0,outbytes.Length);
InBlock.gif
InBlock.gif            ArrayList msglines 
= new ArrayList();
InBlock.gif            
do
ExpandedSubBlockStart.gif            
{
InBlock.gif                line 
= sr.ReadLine();
InBlock.gif                msglines.Add(line);
ExpandedSubBlockEnd.gif            }
 while (line != ".");
InBlock.gif            msglines.RemoveAt(msglines.Count
-1);
InBlock.gif
InBlock.gif            
return msglines;
ExpandedSubBlockEnd.gif        }

InBlock.gif        
private string GetMessageSubject(ArrayList msglines)
ExpandedSubBlockStart.gif        
{
InBlock.gif            
string[] tokens;
InBlock.gif            IEnumerator msgenum 
= msglines.GetEnumerator();
InBlock.gif            
while (msgenum.MoveNext() )
ExpandedSubBlockStart.gif            
{
InBlock.gif                
string line = (string)msgenum.Current;
InBlock.gif                
if(line.StartsWith("Subject:") )
ExpandedSubBlockStart.gif                
{
ExpandedSubBlockStart.gif                    tokens 
= line.Split(new Char[] {' '});
InBlock.gif                    
return tokens[1].Trim();
ExpandedSubBlockEnd.gif                }

ExpandedSubBlockEnd.gif            }

InBlock.gif            
return "None";
ExpandedSubBlockEnd.gif        }

InBlock.gif        
private string GetMessageFrom (ArrayList msglines)
ExpandedSubBlockStart.gif        
{
InBlock.gif            
string[] tokens;
InBlock.gif            IEnumerator msgenum 
= msglines.GetEnumerator();
InBlock.gif            
while (msgenum.MoveNext() )
ExpandedSubBlockStart.gif            
{
InBlock.gif                
string line = (string)msgenum.Current;
InBlock.gif                
if(line.StartsWith("From:") )
ExpandedSubBlockStart.gif                
{
ExpandedSubBlockStart.gif                    tokens 
= line.Split(new Char[] {'<'});
ExpandedSubBlockStart.gif                    
return tokens[1].Trim(new Char[] {'<','>'});
ExpandedSubBlockEnd.gif                }

ExpandedSubBlockEnd.gif            }

InBlock.gif            
return "None";
ExpandedSubBlockEnd.gif        }

InBlock.gif        
private string GetMessageBody(ArrayList msglines)
ExpandedSubBlockStart.gif        
{
InBlock.gif            
string body = "";
InBlock.gif            
string line = " ";
InBlock.gif            IEnumerator msgenum 
= msglines.GetEnumerator();
InBlock.gif
InBlock.gif            
while(line.CompareTo(""!= 0)
ExpandedSubBlockStart.gif            
{
InBlock.gif                msgenum.MoveNext();
InBlock.gif                line 
= (string)msgenum.Current;
ExpandedSubBlockEnd.gif            }

InBlock.gif
InBlock.gif            
while (msgenum.MoveNext() )
ExpandedSubBlockStart.gif            
{
InBlock.gif                body 
= body + (string)msgenum.Current + "\r\n";
ExpandedSubBlockEnd.gif            }

InBlock.gif            
return body;
ExpandedSubBlockEnd.gif        }

InBlock.gif        
private void DeleteMessage(int messagenumber)
ExpandedSubBlockStart.gif        
{
InBlock.gif            Byte[] outbytes;
InBlock.gif            
string input;
InBlock.gif
InBlock.gif            
try
ExpandedSubBlockStart.gif            
{
InBlock.gif                input 
= "dele " + messagenumber.ToString() + "\r\n";
InBlock.gif                outbytes 
= System.Text.Encoding.ASCII.GetBytes(input.ToCharArray());
InBlock.gif                ns.Write(outbytes,
0,outbytes.Length);
ExpandedSubBlockEnd.gif            }

InBlock.gif            
catch(Exception e)
ExpandedSubBlockStart.gif            
{
InBlock.gif                
return;
ExpandedSubBlockEnd.gif            }

InBlock.gif
ExpandedSubBlockEnd.gif        }

InBlock.gif
ExpandedSubBlockEnd.gif    }

InBlock.gif    
public class SMTP
ExpandedSubBlockStart.gif    
{
ExpandedSubBlockStart.gif        
public SMTP(){}
InBlock.gif
InBlock.gif        
public bool Send(string strSmtpServer,int nPort,string strSend,string strReceive
InBlock.gif            ,
string strSubject,string strContent)
ExpandedSubBlockStart.gif        
{
InBlock.gif              
InBlock.gif            
string smtpserver=strSmtpServer;// smtp服务器的IP地址
InBlock.gif
            TcpClient tcpc = new TcpClient();
InBlock.gif            
try
ExpandedSubBlockStart.gif            
{
InBlock.gif                tcpc.Connect(smtpserver, nPort);
InBlock.gif                StreamReader sr ;
InBlock.gif                
string strCmd;
InBlock.gif                sr 
= new StreamReader(tcpc.GetStream(),Encoding.Default);
InBlock.gif                
//服务器连接成功以后,首先向服务器发送HeLlo命令
InBlock.gif
                strCmd="HELO shaozhd";
InBlock.gif                SenSmtpCmd(tcpc,strCmd);
InBlock.gif                
//然后向服务器发送信件的成员的信箱
InBlock.gif
                strCmd="mail from:"+ strSend;
InBlock.gif                SenSmtpCmd(tcpc,strCmd);
InBlock.gif                
//向服务器发送收件人的信箱
InBlock.gif
                strCmd="rcpt to:" + strReceive;
InBlock.gif                SenSmtpCmd(tcpc,strCmd);
InBlock.gif                
//所有的准备工作都已经作好了,下面开始进行邮件的部分
InBlock.gif
                strCmd="data";
InBlock.gif                SenSmtpCmd(tcpc,strCmd);
InBlock.gif                
//邮件内容
InBlock.gif
                strCmd="Date: 1234567\r\n";
InBlock.gif                strCmd
=strCmd+"From: " + strSend +"\r\n";
InBlock.gif                strCmd
=strCmd+"To: " + strReceive +"\r\n";
InBlock.gif                strCmd
=strCmd+"Subject: " + strSubject +"\r\n\r\n";
InBlock.gif                strCmd
=strCmd + strContent +"\r\n\r\n";
InBlock.gif                SenSmtpCmd(tcpc,strCmd);
InBlock.gif                strCmd
="\r\n.\r\n";
InBlock.gif                SenSmtpCmd(tcpc,strCmd);
InBlock.gif                
//最后 关闭与smtp 服务器的连接
InBlock.gif
          tcpc.Close();
InBlock.gif                
return true;
ExpandedSubBlockEnd.gif             }

InBlock.gif            
catch
ExpandedSubBlockStart.gif            
{
InBlock.gif                
return false;
ExpandedSubBlockEnd.gif            }

ExpandedSubBlockEnd.gif        }

InBlock.gif        
void SenSmtpCmd(TcpClient tcpc,String strCmd)
ExpandedSubBlockStart.gif        
{
InBlock.gif
InBlock.gif         
byte[] arrCmd;
InBlock.gif          
string strRet;
InBlock.gif          StreamReader sr;
InBlock.gif        Stream s;
InBlock.gif        s
=tcpc.GetStream();
InBlock.gif        strCmd 
= strCmd + "\r\n";
InBlock.gif        arrCmd
= Encoding.Default.GetBytes(strCmd.ToCharArray()); 
InBlock.gif        s
=tcpc.GetStream();
InBlock.gif        s.Write(arrCmd, 
0, strCmd.Length);
InBlock.gif            
//以下用于程序调试,显示服务器回应信息
InBlock.gif
        sr = new StreamReader(tcpc.GetStream(), Encoding.Default);
InBlock.gif        strRet
=sr.ReadLine();
InBlock.gif        
return;
ExpandedSubBlockEnd.gif        }

ExpandedSubBlockEnd.gif    }

ExpandedBlockEnd.gif}



本文转自高海东博客园博客,原文链接:http://www.cnblogs.com/ghd258/archive/2005/10/22/259689.html,如需转载请自行联系原作者

网友评论

登录后评论
0/500
评论
老朱教授
+ 关注