群发邮件程序

import java.io.*;
import java.util.*;
import javax.mail.*;
import javax.mail.internet.*; 

public class Mailer {
        /** javamail session对象. */
        protected Session session;

        /** 发信地址 */
        protected String from;

        /** 信的标题*/
        protected String subject;

        /** 存放字符串形式的收信地址 */
        protected ArrayList toList = new ArrayList();

        /** 抄送地址*/
        protected ArrayList ccList = new ArrayList();

        /** 暗送地址 */
        protected ArrayList bccList = new ArrayList();



        /** 信的文本内容*/
        protected String body;

        /** SMTP服务器地址*/
        protected String mailHost;

        /**是否在控制台打印信息*/
        protected boolean verbose=true;

      

/** Get from */
        public String getFrom() {
          return from;
       }
      
        public void setFrom(String fm) {
         from = fm;
        }
    
        public String getSubject() {
          return subject;
        }

      
       public void setSubject(String subj) {
          subject = subj;
       }
      
        public ArrayList getToList() {
          return toList;
        }
    
       public void setToList(ArrayList to) {
          toList = to;
       }

       public void setToList(String s) {
           toList = tokenize(s);
       }

       public void addTo(String to) {
           toList.add(to);
       }

       public ArrayList getCcList() {
           return ccList;
       }

      public void setCcList(ArrayList cc) {
           ccList = cc;
      }

      public void setCcList(String s) {
           ccList = tokenize(s);
      }

      public void addCc(String cc) {
           ccList.add(cc);
       }

       public ArrayList getBccList() {
           return bccList;
       }

       public void setBccList(ArrayList bcc) {
          bccList = bcc;
       }

       public void setBccList(String s) {
           bccList = tokenize(s);
       }

       public void addBcc(String bcc) {
           bccList.add(bcc);
       }

       public String getBody() {
           return body;
        }

        public void setBody(String text) {
           body = text;
        }

        public boolean isVerbose() {
           return verbose;
        }

        public void setVerbose(boolean v) {
           verbose = v;
        }

         public boolean isComplete() {
                if (from == null    || from.length()==0) {
                        System.err.println("doSend: no FROM");
                        return false;
                }
                if (subject == null || subject.length()==0) {
                        System.err.println("doSend: no SUBJECT");
                        return false;
                }
                if (toList.size()==0) {
                        System.err.println("doSend: no recipients");
                        return false;
                }
                if (body == null || body.length()==0) {
                        System.err.println("doSend: no body");
                        return false;
                }
                if (mailHost == null || mailHost.length()==0) {
                        System.err.println("doSend: no server host");
                        return false;
                }
                 return true;
           }

           public void setServer(String s) {
                mailHost = s;
}

         /** Send the message.
         */
          public synchronized void doSend() throws MessagingException {

            if (!isComplete())
               throw new IllegalArgumentException("doSend called before message was complete");
                Properties props = new Properties();
                props.put("mail.smtp.host", mailHost);
                props.put("mail.smtp.auth", "true");//指定是否需要SMTP验证
                    // Create the Session object
                if (session == null) {
                       session = Session.getDefaultInstance(props, null);
                       if (verbose)
                       session.setDebug(true); // Verbose!
                }

                // create a message
                final Message mesg = new MimeMessage(session);

                InternetAddress[] addresses;

                // TO Address list
                addresses = new InternetAddress[toList.size()];
                for (int i=0; i<addresses.length; i++)
                     addresses[i] = new InternetAddress((String)toList.get(i));
                mesg.setRecipients(Message.RecipientType.TO, addresses);

                // From Address
                mesg.setFrom(new InternetAddress(from));

                // CC Address list
                addresses = new InternetAddress[ccList.size()];
                for (int i=0; i<addresses.length; i++)
                       addresses[i] = new InternetAddress((String)ccList.get(i));
                mesg.setRecipients(Message.RecipientType.CC, addresses);

                // BCC Address list
                addresses = new InternetAddress[bccList.size()];
                for (int i=0; i<addresses.length; i++)
                        addresses[i] = new InternetAddress((String)bccList.get(i));
                mesg.setRecipients(Message.RecipientType.BCC, addresses);

                // The Subject
                mesg.setSubject(subject);

                // Now the message body.
                mesg.setText(body);

                // Finally, send the message! (use static Transport method)
                // Do this in a Thread as it sometimes is too slow for JServ
                // new Thread() {
                       // public void run() {
                           // try {
                                    Transport transport =session.getTransport("smtp");
                                    transport.connect(mailHost, "zz3zcwb", "123456");
                                    transport.sendMessage(mesg, mesg.getAllRecipients());

                          // } catch (MessagingException e) {
                                     // throw new IllegalArgumentException(
                                    // "Transport.send() threw: " + e.toString());
                         // }
                      // }
                 // }.start();
        }

         
     public static void send(String mailhost,String recipient, String sender,                              String subject, String message) 
        throws MessagingException {
                Mailer m = new Mailer();
                m.setServer(mailhost);
                m.addTo(recipient);
                m.setFrom(sender);
                m.setSubject(subject);
                m.setBody(message);
                m.doSend();
      }



        protected ArrayList tokenize(String s) {
                ArrayList al = new ArrayList();
                StringTokenizer tf = new StringTokenizer(s, ",");
                // For each word found in the line
                while (tf.hasMoreTokens()) {
                        // trim blanks, and add to list.
                        al.add(tf.nextToken().trim());
                }
                return al;
       }
   
        public static void main(String args[]){
         Mailer mailer=new Mailer();
         mailer.setServer("smtp.163.com");
         mailer.setFrom("[e-mail]");
         mailer.addTo("[e-mail]");
         mailer.addTo("[e-mail]");
         mailer.setSubject("我发的信,");
         mailer.setBody("I am OK，很好！请不要发大量拉圾邮件");
         try{
           mailer.doSend();
         }catch (MessagingException e) {}

   }

}

运行结果：

C:\java>javac   Mailer.java

C:\java>java   Mailer
DEBUG: setDebug: JavaMail version 1.3.1
DEBUG: getProvider() returning javax.mail.Provider[TRANSPORT,smtp,com.sun.mail.s
mtp.SMTPTransport,Sun Microsystems, Inc]
DEBUG SMTP: useEhlo true, useAuth true
DEBUG SMTP: trying to connect to host "smtp.163.com", port 25

220 Coremail SMTP(Anti Spam) System (163com[20030606])
DEBUG SMTP: connected to host "smtp.163.com", port: 25

EHLO teacher
250-192.168.1.212
250-PIPELINING
250-AUTH LOGIN PLAIN NTLM
250-AUTH=LOGIN PLAIN NTLM
250 8BITMIME
DEBUG SMTP: Found extension "PIPELINING", arg ""
DEBUG SMTP: Found extension "AUTH", arg "LOGIN PLAIN NTLM"
DEBUG SMTP: Found extension "AUTH=LOGIN", arg "PLAIN NTLM"
DEBUG SMTP: Found extension "8BITMIME", arg ""
DEBUG SMTP: Attempt to authenticate
AUTH LOGIN
334 VXNlcm5hbWU6
enozemN3Yg==
334 UGFzc3dvcmQ6
MTIzNDU2
235 Authentication successful
DEBUG SMTP: use8bit false
MAIL FROM:<[e-mail]>
250 Ok
RCPT TO:<[e-mail]>
250 Ok
RCPT TO:<[e-mail]>
250 Ok
DEBUG SMTP: Verified Addresses
DEBUG SMTP:   [e-mail]
DEBUG SMTP:   [e-mail]
DATA
354 End data with <CR><LF>.<CR><LF>
Message-ID: <813251.1098515605463.JavaMail.cwb@teacher>
From: [e-mail]
To: [e-mail], [e-mail]
Subject: =?GBK?B?ztK3orXE0MUs?=
Mime-Version: 1.0
Content-Type: text/plain; charset=GBK
Content-Transfer-Encoding: base64

SSBhbSBPS6Osuty6w6Ohx+uyu9Kqt6K088G/wK27+NPKvP4=
.
250 Ok: queued as KcCN948EekFKVOYA.1

C:\java>