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());
}
}