JSP/JavaMail实例：邮件发送

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下载 activation.jar 和 mail.jar

配置CLASSPATH，将上面两个jar包加入到CLASSPATH中。

JavaBean : "SendEmail.java"

package cls;import java.util.Date;import java.util.Properties;import javax.mail.*;import javax.mail.internet.*;public class SendEmail{String host;String username;String password;String fromAddr;String toAddr;String subject;String content;public SendEmail(){// 变量初始化host = "smtp.qq.com";username = "";password = "";fromAddr = "@";}// 发送邮件public boolean sendMail(){Properties prop;Session session;MimeMessage msg;try{prop = new Properties(); // 存储连接参数prop.put("mail.smtp.host",host);prop.put("mail.smtp.auth","true");session = Session.getDefaultInstance(prop,null); // 获得一个邮件的Sessionmsg = new MimeMessage(session); // 邮件信息// 检查邮件地址是否合法if(fromAddr == null || fromAddr.equals("")){throw new Exception("发件地址错误");}if(toAddr == null || toAddr.equals("")){throw new Exception("目标地址错误");}//设置源地址msg.setFrom(new InternetAddress(fromAddr));//设置目的地址msg.setRecipient(Message.RecipientType.TO,new InternetAddress(toAddr));//设置主题msg.setSubject(subject);Multipart mp = new MimeMultipart(); //邮件内容MimeBodyPart mbpContent = new MimeBodyPart();mbpContent.setContent(content,"text/html"); // 邮件格式mp.addBodyPart(mbpContent);msg.setContent(mp);msg.setSentDate(new Date());// 发送邮件Transport transport = session.getTransport("smtp");transport.connect((String)prop.get("mail.smtp.host"),username,password);transport.sendMessage(msg,msg.getRecipients(MimeMessage.RecipientType.TO));transport.close();return true;}catch(Exception e){System.out.println(e);return false;}}// getter and setterpublic String getPassword(){return password;}public void setPassword(String password){this.password = password;}public String getHost(){return host;}public void setHost(String host){this.host = host;}public String getUsername(){return username;}public void setUsername(String username){this.username = username;}public String getFromAddr(){return this.fromAddr;}public void setFromAddr(String addr){fromAddr = addr;}public String getToAddr(){return this.toAddr;}public void setToAddr(String addr){toAddr = addr;}public String getSubject(){return subject;}public void setSubject(String sub){subject = sub;}public String getContent(){return content;}public void setContent(String content){this.content = content;}}

sendmail.jsp:

<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8" %><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head><title>Mail</title><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /></head><body><center><jsp:useBean id="email" class="cls.SendEmail" scope="page" /><jsp:setProperty name="email" property="toAddr" value="host" /><jsp:setProperty name="email" property="fromAddr" value="host" /><jsp:setProperty name="email" property="username" value="username" /><jsp:setProperty name="email" property="password" value="password" /><jsp:setProperty name="email" property="subject" value="mail test" /><jsp:setProperty name="email" property="content" value="hello world" /><%=email.sendMail() %></center></body></html>

保存代码，以供参考。