邮件多人发送，可设立发送，抄送，密送

邮件多人发送，可设置发送，抄送，密送
package com.asia.home.cn.utils;

import java.util.Date;
import java.util.Properties;

import javax.mail.BodyPart;
import javax.mail.Message;
import javax.mail.Multipart;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeBodyPart;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeMultipart;

/**
* 邮件多人发送，可设置发送，抄送，密送
* @author zhutongyu
*
*/
public class SendMail {

private static SendMail instance = null;

private SendMail() {

}

public static SendMail getInstance() {
if (instance == null) {
instance = new SendMail();
}
return instance;
}

public void send(String to[],String cs[],String ms[],String subject,String content,String formEmail) {
try {
Properties p = new Properties(); // Properties p =
// System.getProperties();
p.put("mail.smtp.auth", "true");
p.put("mail.transport.protocol", "smtp");
p.put("mail.smtp.host", "smtp.asia-media.cn");
p.put("mail.smtp.port", "25");
// 建立会话
Session session = Session.getInstance(p);
Message msg = new MimeMessage(session); // 建立信息
            BodyPart messageBodyPart = new MimeBodyPart();
            Multipart multipart = new MimeMultipart();
msg.setFrom(new InternetAddress(formEmail)); // 发件人

String toList = null;
String toListcs = null;
String toListms = null;

//发送,
if(to!=null)
{
toList = getMailList(to);
InternetAddress[] iaToList = new InternetAddress().parse(toList);
msg.setRecipients(Message.RecipientType.TO, iaToList); // 收件人
}

//抄送
if(cs!=null)
{
    toListcs = getMailList(cs);
InternetAddress[] iaToListcs = new InternetAddress().parse(toListcs);
msg.setRecipients(Message.RecipientType.CC, iaToListcs); // 抄送人
}


//密送
if(ms!=null)
{
    toListms = getMailList(ms);
InternetAddress[] iaToListms = new InternetAddress().parse(toListms);
msg.setRecipients(Message.RecipientType.BCC, iaToListms); // 密送人
}
msg.setSentDate(new Date()); // 发送日期
msg.setSubject(subject); // 主题
msg.setText(content); // 内容
//显示以html格式的文本内容
messageBodyPart.setContent(content,"text/html;charset=gbk");
multipart.addBodyPart(messageBodyPart);
msg.setContent(multipart);
// 邮件服务器进行验证
Transport tran = session.getTransport("smtp");
tran.connect("smtp.asia-media.cn", "postmaster@asia-media.cn", "asiamedia");
tran.sendMessage(msg, msg.getAllRecipients()); // 发送
System.out.println("邮件发送成功");

} catch (Exception e) {
e.printStackTrace();
}
}

private String getMailList(String[] mailArray) {

StringBuffer toList = new StringBuffer();
int length = mailArray.length;
if (mailArray != null && length < 2) {
toList.append(mailArray[0]);
} else {
for (int i = 0; i < length; i++) {
toList.append(mailArray[i]);
if (i != (length - 1)) {
toList.append(",");
}

}
}
return toList.toString();

}

public static void main(String args[])
{
SendMail send = SendMail.getInstance();
String to[] = { "tt@163.com", tt@asia-media.cn" };
String cs[] = { "tt@asia-media.cn" };
String ms[] = { "tt@asia-media.cn" };
String subject="测试一下";
String content="这是邮件内容，仅仅是测试，不需要回复";
String formEmail="zhutongyu@asia-media.cn";
send.send(to,cs,ms,subject,content,formEmail);
}

}