package com.mzule.simplemail;
import java.util.List;
import java.util.Properties;
import javax.mail.MessagingException;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.AddressException;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeMessage.RecipientType;
/**
* 简单邮件发送器,可单发,群发。
*
* @author MZULE
*
*/
public class SimpleMailSender {
/**
* 发送邮件的props文件
*/
private final transient Properties props = System.getProperties();
/**
* 邮件服务器登录验证
*/
private transient MailAuthenticator authenticator;
/**
* 邮箱session
*/
private transient Session session;
/**
* 初始化邮件发送器
*
* @param smtpHostName
* SMTP邮件服务器地址
* @param username
* 发送邮件的用户名(地址)
* @param password
* 发送邮件的密码
*/
public SimpleMailSender( final String smtpHostName, final String username,
final String password) {
init(username, password, smtpHostName);
}
/**
* 初始化邮件发送器
*
* @param username
* 发送邮件的用户名(地址),并以此解析SMTP服务器地址
* @param password
* 发送邮件的密码
*/
public SimpleMailSender( final String username, final String password) {
//通过邮箱地址解析出smtp服务器,对大多数邮箱都管用
final String smtpHostName = "smtp." + username.split( "@" )[ 1 ];
init(username, password, smtpHostName);
}
/**
* 初始化
*
* @param username
* 发送邮件的用户名(地址)
* @param password
* 密码
* @param smtpHostName
* SMTP主机地址
*/
private void init(String username, String password, String smtpHostName) {
// 初始化props
props.put( "mail.smtp.auth" , "true" );
props.put( "mail.smtp.host" , smtpHostName);
// 验证
authenticator = new MailAuthenticator(username, password);
// 创建session
session = Session.getInstance(props, authenticator);
}
/**
* 发送邮件
*
* @param recipient
* 收件人邮箱地址
* @param subject
* 邮件主题
* @param content
* 邮件内容
* @throws AddressException
* @throws MessagingException
*/
public void send(String recipient, String subject, Object content)
throws AddressException, MessagingException {
// 创建mime类型邮件
final MimeMessage message = new MimeMessage(session);
// 设置发信人
message.setFrom( new InternetAddress(authenticator.getUsername()));
// 设置收件人
message.setRecipient(RecipientType.TO, new InternetAddress(recipient));
// 设置主题
message.setSubject(subject);
// 设置邮件内容
message.setContent(content.toString(), "text/html;charset=utf-8" );
// 发送
Transport.send(message);
}
/**
* 群发邮件
*
* @param recipients
* 收件人们
* @param subject
* 主题
* @param content
* 内容
* @throws AddressException
* @throws MessagingException
*/
public void send(List<String> recipients, String subject, Object content)
throws AddressException, MessagingException {
// 创建mime类型邮件
final MimeMessage message = new MimeMessage(session);
// 设置发信人
message.setFrom( new InternetAddress(authenticator.getUsername()));
// 设置收件人们
final int num = recipients.size();
InternetAddress[] addresses = new InternetAddress[num];
for ( int i = 0 ; i < num; i++) {
addresses[i] = new InternetAddress(recipients.get(i));
}
message.setRecipients(RecipientType.TO, addresses);
// 设置主题
message.setSubject(subject);
// 设置邮件内容
message.setContent(content.toString(), "text/html;charset=utf-8" );
// 发送
Transport.send(message);
}
/**
* 发送邮件
*
* @param recipient
* 收件人邮箱地址
* @param mail
* 邮件对象
* @throws AddressException
* @throws MessagingException
*/
public void send(String recipient, SimpleMail mail)
throws AddressException, MessagingException {
send(recipient, mail.getSubject(), mail.getContent());
}
/**
* 群发邮件
*
* @param recipients
* 收件人们
* @param mail
* 邮件对象
* @throws AddressException
* @throws MessagingException
*/
public void send(List<String> recipients, SimpleMail mail)
throws AddressException, MessagingException {
send(recipients, mail.getSubject(), mail.getContent());
}
}
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