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C#简单实现在网页上发邮件的案例

时间：2021-11-16 15:01     来源/作者：攻城狮caitou

1.前端HTML使用了Jquery，大家如果做演示不要忘记引入Jquery的库

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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
 
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
  <title></title>
  <script src="jquery-1.8.0.min.js" type="text/javascript"></script>
  <script type="text/javascript">
    function sendemail() {
      var smtp = $('#txtSmtp').val();
      var content = $('#txtContent').val();
      var id="codetool">

2.后台代码是一般处理类 ashx，供前台异步调用

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<%@ WebHandler Language="C#" class="Handler" %>
 
using System;
using System.Web;
using Utility;
public class Handler : IHttpHandler {
  
  public void ProcessRequest (HttpContext context)
  {
    context.Response.ContentType = "text/plain";
    string smtp = HttpContext.Current.Request.Form["smtp"].ToString();
    string title = HttpContext.Current.Request.Form["title"].ToString();
    string content = HttpContext.Current.Request.Form["content"].ToString();
    string from = HttpContext.Current.Request.Form["from"].ToString();
    string to = HttpContext.Current.Request.Form["to"].ToString();
    
    
    try
    {
      EmailClient emailClient = new EmailClient(smtp);// localhost::25
      emailClient.SendEmail(from, to, title, content);
      System.Web.Script.Serialization.JavaScriptSerializer jss = new System.Web.Script.Serialization.JavaScriptSerializer();
      System.Collections.Generic.Dictionary<string, object> d = new System.Collections.Generic.Dictionary<string, object>();
      d.Add("message", "success");
      d.Add("success", true);
      context.Response.Write(jss.Serialize(d));
    }
    catch (Exception ex)
    {
      System.Web.Script.Serialization.JavaScriptSerializer jss = new System.Web.Script.Serialization.JavaScriptSerializer();
      System.Collections.Generic.Dictionary<string, object> d = new System.Collections.Generic.Dictionary<string, object>();
      d.Add("message", ex.Message);
      d.Add("success", true);
      context.Response.Write(jss.Serialize(d));
    }
    
      
  }
 
  public bool IsReusable {
    get {
      return false;
    }
  }
 
}

3.最后是用到的SMTP辅助类

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public class EmailClient
  {
    private string smtpServer;
    private string senderAddress;
 
    
    public EmailClient(string smtpServer)
    {
      this.smtpServer = smtpServer;
      this.senderAddress = string.Empty;
    }
 
 　　public void SendEmail(string fromAddress, string toAddress, string subject, string messageBody)
    {
      SmtpClient smtp = new SmtpClient(smtpServer);
 
      MailMessage email = new MailMessage();
 
      email.From = new MailAddress(fromAddress);
      email.To.Add(toAddress);
      email.Subject = subject;
      email.Body = messageBody;
 
      smtp.Send(email);
    }
 
}
标签：
C# smtp 发邮件 

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