C#简单实现在网页上发邮件的案例
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2024-01-17 14:36:52
1.前端html使用了jquery，大家如果做演示不要忘记引入jquery的库
1.前端html使用了jquery，大家如果做演示不要忘记引入jquery的库
<!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 title = $('#txttitle').val();
var from = $('#txtfrom').val();
var to = $('#txtto').val();
$.post("handler.ashx", { 'smtp': smtp, 'content': content,'title':title, 'from': from, 'to': to },
function (data) {
var n = eval('(' + data + ')');
if (n.success) {
alert(n.message);
}
});
}
</script>
</head>
<body>
<table>
<tr><td>smtp:</td>
<td><input type="text" id = "txtsmtp" value="smtp server" />
</td>
</tr>
<tr><td>from addr:</td>
<td><input type="text" id = "txtfrom" value="xxx@xxx.com" />
</td>
</tr>
<tr><td>to addr:</td>
<td><input type="text" id = "txtto" value="xxx@xxx.com" />
</td>
</tr>
<tr><td>title:</td>
<td><input type="text" id = "txttitle" value="title" />
</td>
</tr>
<tr><td>content:</td>
<td><input type="text" id = "txtcontent" value="content" />
</td>
</tr>
<tr>
<td>
<input type="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
<%@ 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
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);
}
}
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