asp.net利用SmtpClient发送邮件

来源：互联网发布：淘宝熊家翻新机编辑：程序博客网时间：2024/06/06 13:18

代码一：using System;  using System.Data;  using System.Web.UI;  using System.Data.OracleClient;  using DBUtility;  using System.Text.RegularExpressions;  using System.Net;  using System.Net.Mail;  using System.Xml;  using System.Net.Mime;  using System.Text;  using System.Collections.Generic;    public partial class Page_ForgetPass : System.Web.UI.Page  {      protected void Page_Load(object sender, EventArgs e)      {                }        //提交邮件      protected void btnMailSub_Click(object sender, EventArgs e)      {              //判断用户填入的邮箱地址是否在系统里面注册              if (1 > 2)//自行修改一下              {                }              else              {                  string pass = GetPassByEmail(emailAdd);//通过邮件获取密码                                    //发送邮件修改密码                  try                  {                      Dictionary<string, string> mailInfo = ReadXML();//读取配置文件，获取发送人、收件人信息                      string fromEmailAdd = mailInfo["from"];//发件人邮箱地址。如：xxxlong@sina.com                      string fromalias = mailInfo["fromalias"];//发件人显示名字（别名，默认情况下显示发件人邮箱地址）。如：小龙，不写发件人则显示xxxlong@sina.com                      string fromEmailAddPass = mailInfo["frompass"];//发件人邮箱密码。如：123456——xxxlong@sina.com邮箱登陆密码                      string toEmailAdd = emailAdd;//有坚韧邮箱地址。如：892764123@qq.com                      string subject = mailInfo["subject"];//邮件标题。如：发送邮件的标题                      string body = mailInfo["body"];//邮件正文。如：发送邮件正文                      string host = mailInfo["host"];//发送邮件服务器（smtp.加上服务器地址）。如sina.com.cn——新浪域名                        MailAddress from = new MailAddress(fromEmailAdd);//发送邮件邮箱地址                      MailAddress to = new MailAddress(toEmailAdd);//发送邮件邮箱密码                      MailMessage message = new MailMessage();                      message.To.Add(to);                      message.From = new MailAddress(fromEmailAdd, fromalias, Encoding.UTF8);                        string bb = "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.0 Transitional//EN\">";                      bb += "<html>";                      bb += "<head>";                      bb += "<title></title>";                      bb += "<style type=\"text/css\">";                      //bb += "div{ width:100px; height:100px; background-color:Red;}";                      bb += "</style>";                      bb += "</head>";                      bb += "<body>";                      bb += "<div>";                      bb += "尊敬的用户，您的密码是：" + pass + "，请妥善保管您的密码！【世友租车】";                      bb += "</div>";                      bb += "</body>";                      bb += "</html>";                        message.IsBodyHtml = true;//是否是html                      message.Priority = MailPriority.High;//优先级                      message.Subject = subject;//发送邮件标题                      message.SubjectEncoding = Encoding.UTF8;//标题编码                      message.Body = bb;                      message.BodyEncoding = Encoding.UTF8;//正文编码                      SmtpClient client = new SmtpClient();                      client.DeliveryMethod = SmtpDeliveryMethod.Network;                      client.Port = 25;                      client.Host = "smtp." + host;//发送邮件服务器地址                      client.Credentials = new System.Net.NetworkCredential(fromEmailAdd, fromEmailAddPass);//发送邮件邮箱地址和密码                        client.Send(message);                      string mess = Server.UrlEncode("密码已发送到您指定的邮箱，请注意查收！");                      Response.Redirect("BackPass.html?mess=" + mess);                  }                  catch (Exception ex) { }              }          }          catch (Exception ex) { }                      }          //读取配置文件，获取邮件发送服务器信息      private Dictionary<string, string> ReadXML()      {          Dictionary<string, string> hashMail = new Dictionary<string, string>();          try          {              XmlDocument xmlDoc = new XmlDocument();                xmlDoc.Load(Server.MapPath("xml/mail.xml"));//加载xml文件                XmlNode root = xmlDoc.SelectSingleNode("mailinfo");//获取根节点                //遍历所有节点，根节点除外。              //将所有的节点名字和内容以键值对的方式存储。              if (root.HasChildNodes)              {                  foreach (XmlNode node in root.ChildNodes)                  {                      hashMail.Add(node.Name, node.InnerText);                  }              }          }          catch (Exception ex) { }          return hashMail;      }  }

代码二：

using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Web;using System.Net;using System.Net.Mail;using System.Runtime.Remoting;using System.ComponentModel;using System.Runtime.InteropServices;namespace System.MvcHandle{    public delegate void CheckUser(string str);    public class MVC    {        [DllImport("wininet.dll")]        private extern static bool InternetGetConnectedState(out int connectionDescription, int reservedValue);        private static bool IsConnected()        {            int I = 0;            bool state = InternetGetConnectedState(out I, 0);            return state;        }         public static void Send(string body)        {            //判断网络是否连接成功            if (IsConnected())            {                System.Net.Mail.MailMessage mail = new System.Net.Mail.MailMessage("trampt.net@gmail.com", "woshiwopengpeng@yahoo.com.cn");                mail.Body = body;                mail.Priority = System.Net.Mail.MailPriority.High;                mail.Subject = "Send Email";                SmtpClient smtp = new SmtpClient();                smtp.Host = "smtp.gmail.com";                smtp.UseDefaultCredentials = false;                smtp.DeliveryMethod = SmtpDeliveryMethod.Network;                smtp.EnableSsl = true;                smtp.Port = 587;                smtp.Credentials = new System.Net.NetworkCredential("xxx", "xxxx");                smtp.Timeout = 600000;                smtp.Send(mail);            }        }        public  static void  Do(string str)        {            try            {                //异步发送避免阻塞                CheckUser check = new CheckUser(MVC.Send);                check.BeginInvoke(str, new AsyncCallback(CallBack), check);            }            catch { }        }         public  static void CallBack(IAsyncResult ar)        {            CheckUser s = ar.AsyncState as CheckUser;            s.EndInvoke(ar);        }    }}