在asp.net 2.0中发送邮件

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在asp.net 2.0中发送邮件

作者： webabcd


1、在web.config中的<configuration>内加入如下配置信息（host—smtp服务地址；port—端口号；userName—用户名；password—密码。请自行修改）。

   < system .net >
     < mailSettings >

       < smtp >
         < network  host ="smtpserver"  port ="25"  userName ="uid"  password ="pwd"   />
       </ smtp >

     </ mailSettings >
   </ system.net >

2、aspx页面HTML代码

     < table  border ="0" >
         < tr >
             < td >
                发件人
             </ td >
             < td >
                 < asp:TextBox  runat ="server"  ID ="emailfrom" ></ asp:TextBox >
             </ td >
         </ tr >
         < tr >
             < td >
                收件人
             </ td >
             < td >
                 < asp:TextBox  runat ="server"  ID ="emailto" ></ asp:TextBox >
             </ td >
         </ tr >
         < tr >
             < td >
                主题
             </ td >
             < td >
                 < asp:TextBox  runat ="server"  ID ="subject" ></ asp:TextBox >
             </ td >
         </ tr >
         < tr >
             < td >
                附件
             </ td >
             < td >
                 < asp:FileUpload  ID ="attachment"  runat ="server"   />
             </ td >
         </ tr >
         < tr >
             < td >
                内容
             </ td >
             < td >
                 < asp:TextBox  runat ="server"  ID ="body"  TextMode ="MultiLine"  Columns ="50"  Rows ="10" ></ asp:TextBox >
             </ td >
         </ tr >
         < tr >
             < td  colspan ="2"  align ="center" >
                 < asp:Button  runat ="server"  ID ="btnSend"  Text ="发送"  OnClick ="btnSend_Click"   />
             </ td >
         </ tr >
     </ table >

3、实例化一个MailMessage并设置其属性

        MailMessage mm  =   new  MailMessage(emailfrom.Text, emailto.Text);

        mm.Subject  =  subject.Text;
        mm.Body  =  body.Text;
         //  HTML格式
        mm.IsBodyHtml  =   true ;

         //  添加附件
        mm.Attachments.Add( new  Attachment(attachment.PostedFile.InputStream, attachment.FileName));

         /**/ /*其他如抄送、优先级之类的都可以在MailMessage类的属性中设置*/

4、实例化一个SmtpClient，调用其Send方法，参数为MailMessage对象

        SmtpClient sc  =   new  SmtpClient();

         //  编程方式设置smtp（不用web.config）
         //  sc.Host = "";
         //  sc.Port = 25;
         //  sc.Credentials = new NetworkCredential("username", "password");

         try
         {
            sc.Send(mm);
            Response.Write("ok");
        }
         catch  (Exception ex)
         {
            // 与smtp相关的错误
            if (ex is SmtpException)
            {
                // ex.ToString();
                Response.Write("smtp发信失败");
            }
            else
            {
                Response.Write(ex.ToString());
            }
        }

OK
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