jsp中jsp中群发邮件群发邮件

jsp中群发邮件

1、获取需要的jar文件，mail.jar( [url]http://java.sun.com/products/javamail/[/url])和activation.jar( [url]http://java.sun.com/products/javabeans/glasgow/jaf.html[/url])，将activation.jar和mail.jar复制到应用程序的\WEB-INF\lib中，即可使用。

2、sendmail.jsp文件代码：
< % @page contentType="text/html;charset=gb2312"%>
<%@ page import="java.sql.*,java.io.*,java.util.*,java.text.*, javax.mail.*, javax.mail.internet.*" %>

<%
 String userName = (String)session.getAttribute("userName");
 String figure = (String)session.getAttribute("figure");
 String from = "";
 String to = "";
 ResultSet rs = null;
 String smtphost = "smtp.yeah.net"; // 发送邮件服务器
 String user = "zyf0808"; // 填写自己的邮件服务器登录用户名
 String password = "123456789"; // 填写你自己的邮件服务器登录密码
 String subject = connBean.change(request.getParameter("txtSubject")); // 邮件标题
 String body =connBean.change(request.getParameter("txtContent"));// 邮件内容
    if(userName!=null && !userName.equals(""))
  {
     ResultSet rst = connBean.ExecuteQuery("SELECT Email FROM Classmates WHERE UserName = '"+userName+"' ");
     if (rst.next())
      from = rst.getString("Email");      //发件人地址
     else from = " [email][email protected][/email]";  //换成可用的管理员的邮箱地址
  }
 else
  {
   //未登录
%>

<% 
  }
 //得到除当前登录管理员外的所有用户的邮箱
 rs = connBean.ExecuteQuery("SELECT Email FROM Classmates WHERE UserName <> '"+userName+"'");
    while (rs.next())
 {
  to = rs.getString("Email"); // 接受人邮件地址
   if (to !=null && !to.equals("") )
  {
  try
  {
   Properties props = new Properties();
   props.put("mail.smtp.host", smtphost);
   props.put("mail.smtp.auth","true");
   Session ssn = Session.getInstance(props, null);

   MimeMessage message = new MimeMessage(ssn);

   InternetAddress fromAddress = new InternetAddress(from);
   message.setFrom(fromAddress);
   InternetAddress toAddress = new InternetAddress(to);
   message.addRecipient(Message.RecipientType.TO, toAddress);

   message.setSubject(subject);
   message.setText(body);

   Transport transport = ssn.getTransport("smtp");
   transport.connect(smtphost, user, password);
   transport.sendMessage(message, message.getRecipients(Message.RecipientType.TO));
   transport.close();
  }
  catch(Exception e)
   {
    out.println(e.toString());
   }
  }
 }
%>