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  • ASP.NET 实现邮件发送和接受的功能(Mail)

    前台代码:html
    <%@ Page language="c#" Codebehind="WebMail.aspx.cs" AutoEventWireup="false" Inherits="MymailSys.WebMail" %>
    <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" >
    <HTML>
        
    <HEAD>
            
    <title>WebForm1</title>
            
    <meta content="Microsoft Visual Studio .NET 7.1" name="GENERATOR">
            
    <meta content="C#" name="CODE_LANGUAGE">
            
    <meta content="JavaScript" name="vs_defaultClientScript">
            
    <meta content="http://schemas.microsoft.com/intellisense/ie5" name="vs_targetSchema">
        
    </HEAD>
        
    <body MS_POSITIONING="GridLayout">
            
    <form id="Form1" method="post" runat="server" enctype="multipart/form-data">
                
    <FONT face="宋体">
                    
    <asp:label id="Label2" style="Z-INDEX: 101; LEFT: 224px; POSITION: absolute; TOP: 16px" runat="server" Width="292px" Font-Names="隶书" Font-Size="XX-Large">邮件发送系统</asp:label>
                    
    <TABLE id="Table1" style="Z-INDEX: 102; LEFT: 80px; WIDTH: 606px; POSITION: absolute; TOP: 96px; HEIGHT: 341px" cellSpacing="1" cellPadding="1" width="606" align="left" border="1">
                        
    <TR>
                            
    <TD style="WIDTH: 178px; HEIGHT: 21px" colSpan="2"><asp:label id="lblShowMsg" runat="server" Width="99px" ForeColor="Red"></asp:label></TD>
                            
    <TD style="WIDTH: 178px; HEIGHT: 21px"><FONT face="宋体"></FONT></TD>
                        
    </TR>
                        
    <TR>
                            
    <TD style="WIDTH: 122px"><asp:label id="Label1" runat="server" Width="92px">发件人:</asp:label></TD>
                            
    <TD><asp:textbox id="tbFrom" runat="server"></asp:textbox></TD>
                            
    <TD><asp:requiredfieldvalidator id="RequiredFieldValidator1" runat="server" Width="156px" ControlToValidate="tbFrom" ErrorMessage="发件人不能为空!" Height="26px"></asp:requiredfieldvalidator></TD>
                        
    </TR>
                        
    <TR>
                            
    <TD style="WIDTH: 122px"><FONT face="宋体">收件人:</FONT></TD>
                            
    <TD><asp:textbox id="tbTo" runat="server"></asp:textbox></TD>
                            
    <TD><FONT face="宋体"><asp:requiredfieldvalidator id="RequiredFieldValidator2" runat="server" Width="152px" ControlToValidate="tbTo" ErrorMessage="收件人不能为空!" Height="26px"></asp:requiredfieldvalidator></FONT></TD>
                        
    </TR>
                        
    <TR>
                            
    <TD style="WIDTH: 122px"><FONT face="宋体">邮件主题:</FONT></TD>
                            
    <TD><asp:textbox id="tbSubject" runat="server"></asp:textbox></TD>
                            
    <TD><asp:requiredfieldvalidator id="RequiredFieldValidator3" runat="server" Width="160px" ControlToValidate="tbSubject" ErrorMessage="邮件主题不能为空!" Height="26px"></asp:requiredfieldvalidator></TD>
                        
    </TR>
                        
    <TR>
                            
    <TD style="WIDTH: 122px">邮件服务器:</TD>
                            
    <TD><asp:textbox id="tbServer" runat="server"></asp:textbox></TD>
                            
    <TD></TD>
                        
    </TR>
                        
    <TR>
                            
    <TD style="WIDTH: 122px">邮件用户名称:</TD>
                            
    <TD><asp:textbox id="tbUserName" runat="server"></asp:textbox></TD>
                            
    <TD><asp:requiredfieldvalidator id="RequiredFieldValidator5" runat="server" ControlToValidate="tbUserName" ErrorMessage="用户名不能为空!"></asp:requiredfieldvalidator></TD>
                        
    </TR>
                        
    <TR>
                            
    <TD style="WIDTH: 122px">密码:</TD>
                            
    <TD><asp:textbox id="tbPass" runat="server" TextMode="Password"></asp:textbox></TD>
                            
    <TD><asp:requiredfieldvalidator id="RequiredFieldValidator6" runat="server" ControlToValidate="tbPass" ErrorMessage="密码不能为空!"></asp:requiredfieldvalidator></TD>
                        
    </TR>
                        
    <TR>
                            
    <TD style="WIDTH: 122px"><FONT face="宋体">优先级:
                                    
    <asp:dropdownlist id="ddlp" runat="server">
                                        
    <asp:ListItem Value="高"></asp:ListItem>
                                        
    <asp:ListItem Value="低"></asp:ListItem>
                                        
    <asp:ListItem Value="普通">普通</asp:ListItem>
                                    
    </asp:dropdownlist></FONT></TD>
                            
    <TD><FONT face="宋体">邮件格式:
                                    
    <asp:dropdownlist id="ddlB" runat="server">
                                        
    <asp:ListItem Value="Text">Text</asp:ListItem>
                                        
    <asp:ListItem Value="Html">Html</asp:ListItem>
                                    
    </asp:dropdownlist></FONT></TD>
                            
    <TD></TD>
                        
    </TR>
                        
    <TR>
                            
    <TD style="WIDTH: 122px">邮件附件:</TD>
                            
    <TD colSpan="2"><INPUT id="FileSelect" style="WIDTH: 282px; HEIGHT: 22px" type="file" size="27" name="File1" runat="server"></TD>
                        
    </TR>
                        
    <TR>
                            
    <TD style="WIDTH: 178px" colSpan="3"><FONT face="宋体">邮件内容:</FONT></TD>
                        
    </TR>
                        
    <TR>
                            
    <TD style="WIDTH: 178px" colSpan="3"><FONT face="宋体"><asp:textbox id="tbBody" runat="server" Width="594px" Height="167px" TextMode="MultiLine"></asp:textbox></FONT></TD>
                        
    </TR>
                        
    <TR>
                            
    <TD style="WIDTH: 235px" colSpan="3"><asp:button id="btnSubmit" runat="server" Text="发送"></asp:button><FONT face="宋体"></FONT></TD>
                        
    </TR>
                    
    </TABLE>
            
    </form>
            
    </FONT>
        
    </body>
    </HTML>

    后台代码:cs
    using System;
    using System.Collections;
    using System.ComponentModel;
    using System.Data;
    using System.Drawing;
    using System.Web;
    using System.Web.SessionState;
    using System.Web.UI;
    using System.Web.UI.WebControls;
    using System.Web.UI.HtmlControls;
    using System.Web.Mail;
    namespace MymailSys
    {
        
    /// <summary>
        
    /// WebForm1 的摘要说明。
        
    /// </summary>

        public class WebMail : System.Web.UI.Page
        
    {
            
    protected System.Web.UI.WebControls.TextBox tbBody;
            
    protected System.Web.UI.WebControls.DropDownList ddlB;
            
    protected System.Web.UI.WebControls.DropDownList ddlp;
            
    protected System.Web.UI.WebControls.RequiredFieldValidator RequiredFieldValidator3;
            
    protected System.Web.UI.WebControls.TextBox tbSubject;
            
    protected System.Web.UI.WebControls.RequiredFieldValidator RequiredFieldValidator2;
            
    protected System.Web.UI.WebControls.TextBox tbTo;
            
    protected System.Web.UI.WebControls.RequiredFieldValidator RequiredFieldValidator1;
            
    protected System.Web.UI.WebControls.TextBox tbFrom;
            
    protected System.Web.UI.WebControls.Label Label1;
            
    protected System.Web.UI.WebControls.Label lblShowMsg;
            
    protected System.Web.UI.WebControls.Label Label2;
            
    protected System.Web.UI.HtmlControls.HtmlForm Form1;
            
    protected System.Web.UI.WebControls.TextBox tbServer;
            
    protected System.Web.UI.WebControls.TextBox tbUserName;
            
    protected System.Web.UI.WebControls.TextBox tbPass;
            
    protected System.Web.UI.WebControls.RequiredFieldValidator RequiredFieldValidator5;
            
    protected System.Web.UI.WebControls.RequiredFieldValidator RequiredFieldValidator6;
            
    protected System.Web.UI.WebControls.Button btnSubmit;
            
    protected System.Web.UI.HtmlControls.HtmlInputFile FileSelect;
            
    protected System.Web.UI.HtmlControls.HtmlForm Form2;
        
            
    private void Page_Load(object sender, System.EventArgs e)
            
    {
                
    // 在此处放置用户代码以初始化页面
            }


            
    Web 窗体设计器生成的代码

            
    private void btnSubmit_Click(object sender, System.EventArgs e)
            
    {
                
    //SmtpMail.Send("shaozhd@263.net","shaozhd@263.net","Test","Hello");
                MailMessage m = new MailMessage();
                m.From 
    = tbFrom.Text;
                m.To 
    = tbTo.Text;
                m.Subject 
    = tbSubject.Text;
                m.Body 
    = tbBody.Text;
                
    //优先级
                switch(ddlp.SelectedIndex)
                
    {
                    
    case 0:
                        m.Priority 
    = MailPriority.High;
                        
    break;
                    
    case 1:
                        m.Priority 
    = MailPriority.Low;
                        
    break;
                    
    default:
                        m.Priority 
    = MailPriority.Normal;
                        
    break;
                }

                
    //格式
                if(ddlp.SelectedIndex==0)
                    m.BodyFormat 
    = MailFormat.Text;
                
    else
                    m.BodyFormat 
    = MailFormat.Html;
                
    //以下设置服务器
                if(tbServer.Text!="")
                
    {
                    SmtpMail.SmtpServer 
    = tbServer.Text;
                    
    //以下代码适用于Framework1.1以上版本。
    //                m.Fields.Add("http://schemas.microsoft.com/cdo/configuration/smtpauthenticate",
    //                    "1");    //basic authentication
    //                m.Fields.Add("http://schemas.microsoft.com/cdo/configuration/sendusername",
    //                    tbUserName.Text); //set your username here
    //                m.Fields.Add("http://schemas.microsoft.com/cdo/configuration/sendpassword",
    //                    tbPass.Text);    //set your password here
                }

                
    //以下处理附件 
                string strFileName = FileSelect.PostedFile.FileName;
                
    if(strFileName!="")
                    m.Attachments.Add(
    new MailAttachment(strFileName));
                SmtpMail.Send(m);
            }

        }

    }

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  • 原文地址:https://www.cnblogs.com/ghd258/p/259692.html
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