邮件操作:POP3协议
邮件操作,用POP3协议实现
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private void GetMail()
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{
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//连接邮件服务器
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System.Net.Sockets.TcpClient TC = new System.Net.Sockets.TcpClient("pop.163.com", 110);
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//发送用户名
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byte[] A_Array = Encoding.ASCII.GetBytes("USER robbine111\r\n");
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//发送密码
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byte[] B_Array = Encoding.ASCII.GetBytes("PASS 201103\r\n");
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//察看邮件列表:统计信息
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byte[] C_Array = Encoding.ASCII.GetBytes("STAT\r\n");
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//察看邮件列表:邮件数量和大小
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byte[] D_Array = Encoding.ASCII.GetBytes("LIST\r\n");
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//关闭连接
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byte[] E_Array = Encoding.ASCII.GetBytes("QUIT\r\n");
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//缓存数组
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byte[] Buff = new byte[256];
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//缓存字符串
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string Buff_Str = "";
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//读取计数
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int i = 0;
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//获取网络流
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NetworkStream NS = TC.GetStream();
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//写入第一条命令
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NS.Write(A_Array, 0, A_Array.Length);
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//读取响应
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i = NS.Read(Buff, 0, 256);
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//字节解码
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Buff_Str += Encoding.UTF8.GetString(Buff, 0, i);
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i = 0;
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//刷新流
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NS.Flush();
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//写入第二条命令
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NS.Write(B_Array, 0, B_Array.Length);
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i = NS.Read(Buff, 0, 256);
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//读取响应
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Buff_Str += Encoding.UTF8.GetString(Buff, 0, i);
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i = 0;
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//刷新流
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NS.Flush();
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//写入第三条命令
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NS.Write(C_Array, 0, C_Array.Length);
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//读取大数据量
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string MailCountMsg = "";
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do
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{
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i = NS.Read(Buff, 0, 256);
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MailCountMsg = Encoding.UTF8.GetString(Buff, 0, i);
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Buff_Str += MailCountMsg;
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} while (i >= 256);
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获取所有的邮件
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i = 0;
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//分析邮件列表
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NS.Write(D_Array, 0, D_Array.Length);
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//读取邮件列表
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do
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{
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i = NS.Read(Buff, 0, 256);
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Buff_Str += Encoding.GetEncoding("GB2312").GetString(Buff, 0, i);
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} while (i >= 256);
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//写入结束命令
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NS.Write(E_Array, 0, E_Array.Length);
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NS.Close();
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MailContentBox.AppendText(Buff_Str);
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}
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