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.*" %>
<jsp:useBean id="connBean" scope="session" class="opendb.opendb"/><html>
<head>
<title>JavaMail 电子邮件发送系统</title>
</head>
<body>
< % @page contentType="text/html;charset=gb2312"%>
<%@ page import="java.sql.*,java.io.*,java.util.*,java.text.*, javax.mail.*, javax.mail.internet.*" %>
<jsp:useBean id="connBean" scope="session" class="opendb.opendb"/><html>
<head>
<title>JavaMail 电子邮件发送系统</title>
</head>
<body>
<%
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]zyf0808@yeah.net[/email]"; //换成可用的管理员的邮箱地址
}
else
{
//未登录
%>
<SCRIPT language="JavaScript">
alert("对不起，您尚未登录，只有登录的管理员同学才能使用该功能！")
window.location.replace("../login.jsp");
</SCRIPT>
<%
}
//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);
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]zyf0808@yeah.net[/email]"; //换成可用的管理员的邮箱地址
}
else
{
//未登录
%>
<SCRIPT language="JavaScript">
alert("对不起，您尚未登录，只有登录的管理员同学才能使用该功能！")
window.location.replace("../login.jsp");
</SCRIPT>
<%
}
//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.setFrom(fromAddress);
InternetAddress toAddress = new InternetAddress(to);
message.addRecipient(Message.RecipientType.TO, toAddress);
message.setSubject(subject);
message.setText(body);
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());
}
}
}
%>
<SCRIPT language="JavaScript">
alert("邮件已经成功发送！")
window.location.replace("../index.jsp");
</SCRIPT>
</BODY>
</HTML>
transport.connect(smtphost, user, password);
transport.sendMessage(message, message.getRecipients(Message.RecipientType.TO));
transport.close();
}
catch(Exception e)
{
out.println(e.toString());
}
}
}
%>
<SCRIPT language="JavaScript">
alert("邮件已经成功发送！")
window.location.replace("../index.jsp");
</SCRIPT>
</BODY>
</HTML>
本文转自 august 51CTO博客，原文链接：http://blog.51cto.com/august/6953，如需转载请自行联系原作者
