C#简单实现在网页上发邮件的案例
1.前端HTML使用了Jquery，大家如果做演示不要忘记引入Jquery的库
<!DOCTYPEhtmlPUBLIC"-//W3C//DTDXHTML1.0Transitional//EN""http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<htmlxmlns="http://www.w3.org/1999/xhtml">
<head>
<title></title>
<scriptsrc="jquery-1.8.0.min.js"type="text/javascript"></script>
<scripttype="text/javascript">
functionsendemail(){
varsmtp=$('#txtSmtp').val();
varcontent=$('#txtContent').val();
vartitle=$('#txtTitle').val();
varfrom=$('#txtFrom').val();
varto=$('#txtTo').val();
$.post("Handler.ashx",{'smtp':smtp,'content':content,'title':title,'from':from,'to':to},
function(data){
varn=eval('('+data+')');
if(n.success){
alert(n.message);
}
});
}
</script>
</head>
<body>
<table>
<tr><td>smtp:</td>
<td><inputtype="text"id="txtSmtp"value="SmtpServer"/>
</td>
</tr>
<tr><td>fromaddr:</td>
<td><inputtype="text"id="txtFrom"value="xxx@xxx.com"/>
</td>
</tr>
<tr><td>toaddr:</td>
<td><inputtype="text"id="txtTo"value="xxx@xxx.com"/>
</td>
</tr>
<tr><td>title:</td>
<td><inputtype="text"id="txtTitle"value="title"/>
</td>
</tr>
<tr><td>content:</td>
<td><inputtype="text"id="txtContent"value="Content"/>
</td>
</tr>
<tr>
<td>
<inputtype="button"id="btnSend"value="send"onclick="sendemail()"/>
</td>
</tr>
</table>
</body>
</html>
2.后台代码是一般处理类ashx，供前台异步调用
<%@WebHandlerLanguage="C#"class="Handler"%>
usingSystem;
usingSystem.Web;
usingUtility;
publicclassHandler:IHttpHandler{
publicvoidProcessRequest(HttpContextcontext)
{
context.Response.ContentType="text/plain";
stringsmtp=HttpContext.Current.Request.Form["smtp"].ToString();
stringtitle=HttpContext.Current.Request.Form["title"].ToString();
stringcontent=HttpContext.Current.Request.Form["content"].ToString();
stringfrom=HttpContext.Current.Request.Form["from"].ToString();
stringto=HttpContext.Current.Request.Form["to"].ToString();
try
{
EmailClientemailClient=newEmailClient(smtp);//localhost::25
emailClient.SendEmail(from,to,title,content);
System.Web.Script.Serialization.JavaScriptSerializerjss=newSystem.Web.Script.Serialization.JavaScriptSerializer();
System.Collections.Generic.Dictionary<string,object>d=newSystem.Collections.Generic.Dictionary<string,object>();
d.Add("message","success");
d.Add("success",true);
context.Response.Write(jss.Serialize(d));
}
catch(Exceptionex)
{
System.Web.Script.Serialization.JavaScriptSerializerjss=newSystem.Web.Script.Serialization.JavaScriptSerializer();
System.Collections.Generic.Dictionary<string,object>d=newSystem.Collections.Generic.Dictionary<string,object>();
d.Add("message",ex.Message);
d.Add("success",true);
context.Response.Write(jss.Serialize(d));
}
}
publicboolIsReusable{
get{
returnfalse;
}
}
}
3.最后是用到的SMTP辅助类
publicclassEmailClient
{
privatestringsmtpServer;
privatestringsenderAddress;
publicEmailClient(stringsmtpServer)
{
this.smtpServer=smtpServer;
this.senderAddress=string.Empty;
}
publicvoidSendEmail(stringfromAddress,stringtoAddress,stringsubject,stringmessageBody)
{
SmtpClientsmtp=newSmtpClient(smtpServer);
MailMessageemail=newMailMessage();
email.From=newMailAddress(fromAddress);
email.To.Add(toAddress);
email.Subject=subject;
email.Body=messageBody;
smtp.Send(email);
}
}