使用JavaMail发送文本型邮件

     文本型邮件是应用是广泛的一种邮件类型,本实例将使用JavaMail发送文本型邮件。用户通过在邮件书写页面textMail.htm中填写表单,然后提交给邮件发送页面sendMail.jsp,由sendMail.jsp调用封装邮件发送功能的SendTextMail实现邮件的发送
    首先导入activation.jar和mail.jar
文本型邮件书写页面textMail.htm
   <html>
<head>
<title>发送文本型邮件</title>
</head>
<body>
<h2>
发送文本型邮件
</h2>
<hr>
<form name="form1" method="post" action="sendMaill.jsp">
SMTP服务器:
<input type="text" id="SMTPHost" name="SMTPHost">
<br>
登录帐号:
<input type="text" id="user" name="user">
<br>
登录密码:
<input type="password" id="password" name="password">
<br>
<br>
发件人邮箱:
<input type="text" id="from" name="from">
<br>
收件人邮箱:
<input type="text" id="to" name="to">
<br>
邮件标题:
<input type="text" id="subject" name="subject">
<br>
邮件内容:
<textarea id="content" name="content" rows="5" cols="40"></textarea>
<br>
<br>
<input type="submit" name="submit" value="发送">
&nbsp;
<input type="reset" name="reset" value="重填">
</form>
</body>
</html>

封装发送文本型邮件功能的SendTextMail.java
package test;

import javax.mail.*;
import javax.mail.internet.*;
import javax.activation.*;
import java.util.*;

public class SendTextMail {
String SMTPHost = ""; // SMTP服务器

String user = ""; // 登录SMTP服务器的帐号

String password = "";// 登录SMTP服务器的密码

String from = ""; // 发件人的邮箱

String to = ""; // 收件人的邮箱

String subject = ""; // 邮件标题

String content = ""; // 邮件内容

public SendTextMail() {
}

public String getContent() {
return content;
}

public void setContent(String content) {
try {
content = new String(content.getBytes("ISO8859-1"), "gb2312");
} catch (Exception ex) {
ex.printStackTrace();
}
this.content = content;
}

public String getFrom() {
return from;
}

public void setFrom(String from) {
this.from = from;
}

public String getPassword() {
return password;
}

public void setPassword(String password) {
this.password = password;
}

public String getSMTPHost() {
return SMTPHost;
}

public void setSMTPHost(String host) {
SMTPHost = host;
}

public String getSubject() {
return subject;
}

public void setSubject(String subject) {
try {
subject = new String(content.getBytes("ISO8859-1"), "gb2312");
} catch (Exception ex) {
ex.printStackTrace();
}
this.subject = subject;
}

public String getTo() {
return to;
}

public void setTo(String to) {
this.to = to;
}

public String getUser() {
return user;
}

public void setUser(String user) {
this.user = user;
}

public boolean send() {
// 创建一个属性对象
Properties props = new Properties();
// 指定SMTP服务器
props.put("mail.smtp.host", SMTPHost);
// 指定是否需要SMTP验证
props.put("mail.smtp.auth", "true");
try{
//创建一个授权验证对象
SmtpAuth auth = new SmtpAuth();
auth.setAccount(user,password);

//创建一个Session对象
Session mailSession = Session.getDefaultInstance(props,auth);
mailSession.setDebug(true);

//创建一个Message对象
Message message=new MimeMessage(mailSession);

//指定发件人邮箱
message.setFrom(new InternetAddress(from));
//指定收件人邮箱
message.addRecipient(Message.RecipientType.TO,new InternetAddress(to));
//指定邮件主题
message.setSubject(subject);
//指定邮件内容
message.setText(content);
//指定邮件发送日期
message.setSentDate(new Date());
//指定邮件优先级 1:紧急 3:普通 5:缓慢
message.setHeader("X-Priority","1");
message.saveChanges();

//创建一个Transport对象
Transport transport = mailSession.getTransport("smtp");
//连接SMTP服务器
transport.connect(SMTPHost, user, password);
//发送邮件
transport.sendMessage(message, message.getAllRecipients());
transport.close();
return true;
} catch (Exception ex) {
ex.printStackTrace();
return false;
}

}

// 定义一个SMTP授权验证类
static class SmtpAuth extends Authenticator {
String user, password;

// 设置帐号信息
void setAccount(String user, String password) {
this.user = user;
this.password = password;
}

// 取得PasswordAuthentication对象
protected PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(user, password);
}
}
}
发送文本型邮件的Jsp页面sendMail.jsp
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%@ page import="test.SendTextMail"%>
<jsp:useBean id="mySend" class="test.SendTextMail"></jsp:useBean>
<jsp:setProperty property="*" name="mySend" />
<%
boolean status = mySend.send();
if (status) {
out.println("恭喜你邮件发送成功");
} else {
out.println("对不起邮件发送失败");
}
%>

  完成!!你可以到textMail.htm看效果了

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