First,you should download javamail from and jaf.
写下这个东西,以后备用~~~
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%
request.setCharacterEncoding("GB2312");
%>
<%@ page import="java.util.*,javax.mail.*"%>
<%@ page import="javax.mail.internet.*"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
<%
try {
//从HTML中获取表单信息
String tto = request.getParameter("to");
String ttitle = request.getParameter("title");
String tcontent = request.getParameter("content");
String ffrom = request.getParameter("from");
int postion = ffrom.indexOf("@");
String userName = ffrom.substring(0,postion);//发件人邮件名
out.print(tto + "<br>");
out.print(ttitle + "<br>");
out.print(tcontent + "<br>");
out.print(ffrom + "<br>");
out.print(userName + "<br>");
Properties props = new Properties();
props.put("mail.smtp.host", "stmpt.163.com");//储存发送邮件服务器的信息
props.put("mail.smtp.auth", "true");//同时通过验证,一定要为true
Session s = Session.getInstance(props);//根据属性新建一个邮件会话
s.setDebug(true);
MimeMessage message = new MimeMessage(s);//由邮件会话新建一个消息对象
//设置邮件
//设置发件人
InternetAddress from = new InternetAddress(ffrom);
message.setFrom(from);
InternetAddress to = new InternetAddress(tto);
message.setRecipient(Message.RecipientType.TO, to);//设置收件人
message.setSubject(ttitle);//设置主题
message.setText(tcontent);//设置信件内容
message.setSentDate(new Date());//设置发信时间
message.saveChanges();//储存邮件信息
Transport transport = s.getTransport("smtp");
transport.connect("smtp.163.com", userName,
"你的邮件密码");//以stmp方式登录邮箱,必须有用户名和密码
transport.sendMessage(message,
message.getAllRecipients());//发送邮件,第二个参数为所有已设好的收件人地址
transport.close();
%>
<div align="center">
<p>
<font color="red">发送成功</font>
</p>
<br>
<a href="index.htm">send one again</a>
</div>
<%
} catch (Exception e) {
e.printStackTrace();
}
%>
</body>
</html>
另外有一篇的文章可以参考:http://www.blogjava.net/TrampEagle/archive/2009/03/18/48326.html