使用javaMail发送电子邮件需要两个jar包：activation.jar和mail.jar。具体代码如下：
index.jsp:
1 <%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> 2 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> 3 <html> 4 <head> 5 <title>发送邮箱</title> 6 <meta http-equiv="Content-Type" content="text/html; charset=gb2312"> 7 </head> 8 <body> 9 <form name="form1" method="post" action="sendMail.jsp"> 10 <p align="center">发送文本型邮件</p> 11 <div align="center"> 12 <table width="70%" border="1"> 13 <tr> 14 <td><div align="center">SMTP服务器</div></td> 15 <td><div align="center"> 16 <input name="SMTPHost" type="text" id="SMTPHost" size="30" maxlength="30"> 17 </div></td> 18 </tr> 19 <tr> 20 <td><div align="center">登录帐号</div></td> 21 <td><div align="center"> 22 <input name="user" type="text" id="user" size="30" maxlength="30"> 23 </div></td> 24 </tr> 25 <tr> 26 <td><div align="center">登录密码</div></td> 27 <td><div align="center"> 28 <input name="password" type="password" id="password" size="30" maxlength="100"> 29 </div></td> 30 </tr> 31 <tr> 32 <td><div align="center">发件人</div></td> 33 <td><div align="center"> 34 <input name="from" type="text" id="from" size="30" maxlength="100"> 35 </div></td> 36 </tr> 37 <tr> 38 <td><div align="center">收件人</div></td> 39 <td><div align="center"> 40 <input name="to" type="text" id="to" size="30" maxlength="100"> 41 </div></td> 42 </tr> 43 <tr> 44 <td><div align="center">主题</div></td> 45 <td><div align="center"> 46 <input name="subject" type="text" id="subject" size="30" maxlength="30"> 47 </div></td> 48 </tr> 49 <tr> 50 <td colspan="2"><div align="center"> 51 <textarea name="body" cols="40" rows="10" id="body"></textarea> 52 </div></td> 53 </tr> 54 <tr> 55 <td colspan="2"><div align="center"> 56 <input type="submit" name="Submit" value="发送"> 57 58 <input name="Reset" type="submit" id="Reset" value="清空"> 59 </div></td> 60 </tr> 61 </table> 62 </div> 63 <p align="center"> </p> 64 </form> 65 <p align="center"> </p> 66 </body> 67 </html>
sendMail.jsp:
1 <%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> 2 3 <jsp:useBean id="mySend" class="com.email.SendTextMail"></jsp:useBean> 4 <jsp:setProperty property="*" name="mySend"/> 5 6 <% 7 //注意这里使用javaBean自省机制为属性赋值 8 boolean status = mySend.send(); 9 if(status){ 10 out.println("恭喜你，发送邮件成功！"); 11 }else{ 12 out.println("对不起，发送邮件失败！"); 13 } 14 %>
SendTextMail.java:
1 package com.email; 2 3 import java.util.Date; 4 import java.util.Properties; 5 6 import javax.mail.Authenticator; 7 import javax.mail.Message; 8 import javax.mail.PasswordAuthentication; 9 import javax.mail.Session; 10 import javax.mail.Transport; 11 import javax.mail.internet.InternetAddress; 12 import javax.mail.internet.MimeMessage; 13 14 public class SendTextMail { 15 String SMTPHost = "";//SMTP服务器 16 String user = "";//登录SMTP服务器的帐号 17 String password = "";//密码 18 String from = ""; 19 String to = ""; 20 String subject = ""; 21 String content = ""; 22 23 public SendTextMail(){} 24 25 public String getSMTPHost() { 26 return SMTPHost; 27 } 28 29 public void setSMTPHost(String host) { 30 SMTPHost = host; 31 } 32 33 public String getUser() { 34 return user; 35 } 36 37 public void setUser(String user) { 38 this.user = user; 39 } 40 41 public String getPassword() { 42 return password; 43 } 44 45 public void setPassword(String password) { 46 this.password = password; 47 } 48 49 public String getFrom() { 50 return from; 51 } 52 53 public void setFrom(String from) { 54 this.from = from; 55 } 56 57 public String getTo() { 58 return to; 59 } 60 61 public void setTo(String to) { 62 this.to = to; 63 } 64 65 public String getSubject() { 66 return subject; 67 } 68 69 public void setSubject(String subject) { 70 this.subject = subject; 71 } 72 73 public String getContent() { 74 return content; 75 } 76 77 public void setContent(String content) { 78 this.content = content; 79 }; 80 /* 81 * liuling476777389@sina.cn 82 pop.sina.cn 83 */ 84 public boolean send(){ 85 //创建一个属性对象 86 Properties props = System.getProperties(); 87 //指定SMTP服务器 88 props.put("mail.smtp.host", SMTPHost); 89 props.put("mail.smtp.auth", "true"); //true一定要加引号 90 try { 91 //创建一个授权验证对象 92 SmtpAuth auth = new SmtpAuth(); 93 auth.setAccount(user, password); 94 //创建一个session对象 95 Session mailSession = Session.getDefaultInstance(props,auth); 96 mailSession.setDebug(true); 97 //创建一个message对象 98 Message message = new MimeMessage(mailSession); 99 message.setFrom(new InternetAddress(from));//指定发件人 100 message.addRecipient(Message.RecipientType.TO, new InternetAddress(to));//指定收件人 101 message.setSubject(subject);//指定主题 102 message.setText(content);//指定内容 103 message.setSentDate(new Date());//指定发送日期 104 //指定邮件等级1.紧急 3.普通 5.缓慢 105 message.setHeader("X-Priority", "1"); 106 message.saveChanges(); 107 //创建一个Transport对象 108 Transport transport = mailSession.getTransport("smtp"); 109 //连接SMTP服务器 110 transport.connect(SMTPHost, user, password); 111 //发送邮件 112 transport.sendMessage(message, message.getAllRecipients()); 113 transport.close(); 114 return true; 115 } catch (Exception e) { 116 e.printStackTrace(); 117 return false; 118 } 119 } 120 121 } 122 123 class SmtpAuth extends Authenticator{ 124 String user,password; 125 void setAccount(String user,String password){ 126 this.user = user; 127 this.password = password; 128 } 129 //取得PasswordAuthentication对象 130 protected PasswordAuthentication getPasswordAuthentication(){ 131 return new PasswordAuthentication(user,password); 132 } 133 }
经测试用过，能过成功发送邮件。