javaMail Java实现邮件发送，群发功能，java发送邮件

转http://www.j-cn.org/post/536.html

做爬虫开发时候为了时刻得到爬虫的抓取状况，所以用到一个定时发送邮件系统，以便随时把爬虫抓取情况发送到我的邮箱，从而更好地了解爬虫运行情况，有用到的朋友尽管拷贝用了，直接能用的，记者把你的邮箱发送服务器给该一下就行了。
邮件系统很简单哦，只有下面两个类：

MailBean 和 SendMailOnTime

需要jar组件：

activation.jar

mail.jar

log4j.jar

代码如下：

/*
* Created on 2005-9-7
*
* TODO To change the template for this generated file go to
* Window - Preferences - Java - Code Style - Code Templates
*
* Update on 2008-8-14
*/
package javaMail;

import javax.mail.MessagingException;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;

import org.apache.log4j.Logger;

/**
* @author panshengti 类功能 : 处理意见反馈邮件发送 调用 jar:activation.jar 、 mail.jar
*/

public class MailBean {

public static Logger log = null ;
static {
log = Logger.getLogger (MailBean. class );
}

// smtpHost 发件人所用到的 smtp 服务器
String smtpHost = "smtp.163.com" ;
// from 发件人邮箱
String from = "d-ear@163.com" ;
// to 收件人邮箱
String to = "mbrasser@d-ear.com" ;
// subject 邮件标题
String subject = "receive a mail from d-ear@163.com" ;
// theMessage 邮件内容
StringBuffer theMessage = new StringBuffer();

/**
* 固定的给 ffshi@d-ear.com ,stpan@d-ear.com 发送邮件
* create date:2008- 8- 15
* author:Administrator
*
* @param smtpHost
* @param from
* @param subject
* @param messageText
* @throws MessagingException
*/
public void sendMessage(String smtpHost, String from,
String subject, String messageText) throws MessagingException {
SmtpAuth sa = new SmtpAuth();
sa.getuserinfo( "d-ear" , "123abc" );
java.util.Properties props = new java.util.Properties();
props.put( "mail.smtp.auth" , "true" );
props.put( "mail.smtp.host" , smtpHost);
System. out .println( "Constructing message- from=" + from + " to=" + to );
InternetAddress fromAddress = new InternetAddress(from);
InternetAddress[] toAddresss = new InternetAddress[2];
toAddresss[0] = new InternetAddress( "ffshi@d-ear.com" );
toAddresss[1] = new InternetAddress( "stpan@d-ear.com" );
int i = 0;
while (i < toAddresss. length ) {
Session mailSession = Session.getDefaultInstance (props, sa);
MimeMessage testMessage = new MimeMessage(mailSession);
testMessage.setFrom(fromAddress);
testMessage.addRecipient(javax.mail.Message.RecipientType. TO ,
toAddresss[i]);
testMessage.setSentDate( new java.util.Date());
testMessage.setSubject(subject);
testMessage.setText(messageText);

Transport.send (testMessage);
System. out .println( "A mail have been sent!" );
i++;
}
}

/*
* 由 163 服务器向目的邮箱发送邮件
* 邮件发送处理 @param stmHost,from,to,subject,messageText
*/

public void sendMessage(String smtpHost, String from, String to,
String subject, String messageText) throws MessagingException {
SmtpAuth sa = new SmtpAuth();
sa.getuserinfo( "d-ear" , "123abc" );
java.util.Properties props = new java.util.Properties();
props.put( "mail.smtp.auth" , "true" );
props.put( "mail.smtp.host" , smtpHost);
System. out .println( "Constructing message- from=" + from + " to=" + to);
InternetAddress fromAddress = new InternetAddress(from);
InternetAddress toAddresss = new InternetAddress(to);

Session mailSession = Session.getDefaultInstance (props, sa);
MimeMessage testMessage = new MimeMessage(mailSession);
testMessage.setFrom(fromAddress);
testMessage.addRecipient(javax.mail.Message.RecipientType. TO ,
toAddresss);
testMessage.setSentDate( new java.util.Date());
testMessage.setSubject(subject);
testMessage.setText(messageText);

Transport.send (testMessage);
System. out .println( "A mail have been sent to " + to);

}

/**
* 功能：群发功能 , 把所有的目的邮箱作为一个数组参数传入
* create date:2008- 8- 15
* author:Administrator
*
* @param smtpHost
* @param from
* @param to 目的邮箱数组
* @param subject
* @param messageText
* @throws MessagingException
*/
public void sendMessage(String smtpHost, String from, String[] to,
String subject, String messageText) throws MessagingException {
SmtpAuth sa = new SmtpAuth();
sa.getuserinfo( "d-ear" , "123abc" );
java.util.Properties props = new java.util.Properties();
props.put( "mail.smtp.auth" , "true" );
props.put( "mail.smtp.host" , smtpHost);
System. out .println( "Constructing message- from=" + from + " to=" + to);
InternetAddress fromAddress = new InternetAddress(from);

InternetAddress[] toAddresss = new InternetAddress[to. length ];
for ( int len=0;len<to. length ;len++){
toAddresss[0] = new InternetAddress(to[len]);
}

int i = 0;
while (i < toAddresss. length ) {
Session mailSession = Session.getDefaultInstance (props, sa);
MimeMessage testMessage = new MimeMessage(mailSession);
testMessage.setFrom(fromAddress);
testMessage.addRecipient(javax.mail.Message.RecipientType. TO ,
toAddresss[i]);
testMessage.setSentDate( new java.util.Date());
testMessage.setSubject(subject);
testMessage.setText(messageText);

Transport.send (testMessage);
System. out .println( "A mail have been sent to " +to[i]);
i++;
}
}
/*
* 邮件用户名和密码认证
*/
static class SmtpAuth extends javax.mail.Authenticator {
private String user , password ;

public void getuserinfo(String getuser, String getpassword) {
user = getuser;
password = getpassword;
}

protected javax.mail.PasswordAuthentication getPasswordAuthentication() {
return new javax.mail.PasswordAuthentication( user , password );
}
}

}

package javaMail;

import javax.mail.MessagingException;

import org.apache.log4j.Logger;

public class SendMailOnTime {

public static Logger log = null ;
static {
log = Logger.getLogger (SendMailOnTime. class );
}

/**
* @param args
*/
public static void sendMail(String str) {

MailBean mail = new MailBean();
try {
mail.sendMessage( "smtp.163.com" , "d-ear@163.com" ,
"rent information" , str);
} catch (MessagingException e) {
System. out .println( "mail send error !" );
log .debug( "mail send error !" + e.getMessage());
e.printStackTrace();
}
System. out .println( "Mail have been sended ." );
}

/**
* 给一个指定邮箱发送指定的邮件内容 create date:2008- 8- 15 author:Administrator
*
* @param str
*/
public static void sendMail(String toMail, String content) {

MailBean mail = new MailBean();
try {
mail.sendMessage( "smtp.163.com" , "d-ear@163.com" , toMail,
"spider information" , content);
} catch (MessagingException e) {
System. out .println( "mail send error !" );
log .debug( "mail send error !" + e.getMessage());
e.printStackTrace();
}
System. out .println( "Mail have been sended ." );
}

/**
* 指定目的邮箱数组进行群发 create date:2008- 8- 15 author:Administrator
*
* @param toMail
* @param content
*/
public static void sendMail(String[] toMail, String content) {

MailBean mail = new MailBean();
try {
mail.sendMessage( "smtp.163.com" , "d-ear@163.com" , toMail,
"spider information" , content);
} catch (MessagingException e) {
System. out .println( "mail send error !" );
log .debug( "mail send error !" + e.getMessage());
e.printStackTrace();
}
System. out .println( "Mail have been sended ." );
}

}