java实现邮件抄送，密送，多个附件发送

package com.asia.home.cn.utils; 

import java.io.File; 
import java.io.UnsupportedEncodingException; 
import java.util.Date; 
import java.util.Properties; 

import javax.activation.DataHandler; 
import javax.activation.FileDataSource; 
import javax.mail.BodyPart; 
import javax.mail.Message; 
import javax.mail.MessagingException; 
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; 
import javax.mail.internet.MimeUtility; 

/** 
* 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,String fileList[]) { 
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); 

// 2.保存多个附件 
  if(fileList!=null){ 
      addTach(fileList,multipart); 
  } 

msg.setContent(multipart); 
// 邮件服务器进行验证 
Transport tran = session.getTransport("smtp"); 
tran.connect("smtp.asia-media.cn", "[email protected]", "asiamedia"); 
tran.sendMessage(msg, msg.getAllRecipients()); // 发送 
System.out.println("邮件发送成功"); 

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


//添加多个附件 
public void addTach(String fileList[],Multipart multipart) throws MessagingException, UnsupportedEncodingException{ 
    for (int index = 0;index <  fileList.length;index++) 
        { 
         MimeBodyPart mailArchieve = new MimeBodyPart(); 
         FileDataSource fds = new FileDataSource(fileList[index]); 
         mailArchieve.setDataHandler(new DataHandler(fds)); 
         mailArchieve.setFileName(MimeUtility.encodeText(fds.getName(),"GBK","B")); 
         multipart.addBodyPart(mailArchieve); 
        }   
} 

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[] = { "[email protected]" }; 
String cs[] = null; 
String ms[] = null; 
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="[email protected]"; 
  String[] arrArchievList = new String[4]; 
          arrArchievList[0] = "c:\\2012052914033429140297.rar"; 
          arrArchievList[1] = "c:\\topSearch.html"; 
          arrArchievList[2] = "c:\\topSearch2.html"; 
          arrArchievList[3] = "c:\\logo_white.png"; 
         // 2.保存多个附件 
send.send(to,cs,ms,subject,content,formEmail,arrArchievList); 
} 

}