用javamail实现发邮件

package mail;

import javax.mail.Authenticator;
import javax.mail.PasswordAuthentication;

/**Authenticator接口实现类 ：send Mail 的 session 中用到 */
public class AuthenticatorImpl extends Authenticator {
 private String name;

 private String password;

 public AuthenticatorImpl() {
  super();
 }

 public AuthenticatorImpl(String name, String password) {
  super();
  this.name = name;
  this.password = password;
 }

 public String getName() {
  return name;
 }

 public void setName(String name) {
  this.name = name;
 }

 public String getPassword() {
  return password;
 }

 public void setPassword(String password) {
  this.password = password;
 }

 protected PasswordAuthentication getPasswordAuthentication() {
  return new PasswordAuthentication(name, password);
 }
}

/********/
package mail;

import java.io.Serializable;
import java.util.ArrayList;

public class Mail implements Serializable{
 /** 发件人地址 */
 private String sendFrom;

 /** 收件人地址 */
 private String sendTo;

 /** 抄送地址 */
 private String sendCC;
 
 /** 邮件服务器地址 */
 private String hostSMTP;
 
 /** 用户名 */
 private String userName;

 /** 密码 */
 private String password;
 
 /** 邮件主题 */
 private String mailSubject;

 /** 邮件正文内容 */
 private String mailContent;

 /** 附件集合 ： 最多为5个 */
 private ArrayList<String> attfile = new ArrayList<String>();

 public String getSendFrom(){return sendFrom;}
 public void setSendFrom(String sendFrom){this.sendFrom = sendFrom;}

 public String getSendTo(){return sendTo;}
 public void setSendTo(String sendTo){this.sendTo = sendTo;}
 
 public String getSendCC(){return sendCC;}
 public void setSendCC(String sendCC){this.sendCC = sendCC;}

 public String getHostSMTP(){return hostSMTP;}
 public void setHostSMTP(String hostSMTP){this.hostSMTP = hostSMTP;}
 
 public String getUserName(){return userName;}
 public void setUserName(String userName){this.userName = userName;}
 
 public String getPassword(){return password;}
 public void setPassword(String password){this.password = password;}

 public String getMailSubject(){return mailSubject;}
 public void setMailSubject(String mailSubject){this.mailSubject = mailSubject;}
 
 public String getMailContent(){return mailContent;}
 public void setMailContent(String mailContent){this.mailContent = mailContent;}
 
 public ArrayList<String> getAttfile(){return attfile;}
 public void setAttfile(ArrayList<String> attfile){this.attfile = attfile;}
}

/************/

package mail;

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

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

import mail.MailDao;
import mail.Mail;

/**邮件接口实现类 */
public class MailBean implements MailDao {
 private static MailBean mjd;

 public MailBean() {
  super();
 }

 /** 单例模式 */
 public static MailBean getInstance() {
  if (mjd == null)
   mjd = new MailBean();
  return mjd;
 }

 /**发送邮件具体方法 */
 public Boolean send(Mail mail) {
  /** 创建session中所需要的Properties对象 */
  Properties props = System.getProperties();
  props.put("mail.smtp.host", mail.getHostSMTP());
  props.put("mail.smtp.auth", "true");
  props.put("mail.smtp.timeout", 2500);
  
  /** 创建邮件会话对象session */
  AuthenticatorImpl authenticatorImpl = new AuthenticatorImpl();
  authenticatorImpl.setName(mail.getUserName());
  authenticatorImpl.setPassword(mail.getPassword());
  Session mailSession = Session.getInstance(props,authenticatorImpl);
  
  /** 构造MimeMessage<实际发送的电子邮件信息>，并设定基本的值 */
  MimeMessage message = new MimeMessage(mailSession);
  try {
   /** 设置发件人 */
   message.setFrom(new InternetAddress(mail.getSendFrom()));
   /** 设置收件人 */
   message.setRecipients(Message.RecipientType.TO, mail.getSendTo());
   /** 设置抄送人 */
   //message.setRecipients(Message.RecipientType.CC, mail.getSendCC());
   
   /** 设置邮件主题 : 编码 */
   message.setSubject(new String(mail.getMailSubject().getBytes("ISO-8859-1")), "GBK");
   /** 构造Multipart : 该类是用于保存电子邮件内容的容器 ：定义了添加、删除、获得电子邮件内容的方法 */
   Multipart mp = new MimeMultipart();
   /** 设置邮件的正文信息,并添加正文 : 编码 */
   MimeBodyPart mbp = new MimeBodyPart();
   mbp.setText(new String(mail.getMailContent().getBytes("ISO-8859-1")),"GBK");
   mp.addBodyPart(mbp);
   
   /** 将邮件内容添加到MimeMessage */
   message.setContent(mp);

   /** 设置邮件的发送日期 */
   message.setSentDate(new Date());
   
   /** 发送电子邮件 */
   Transport.send(message);
   return true;
  } catch (AddressException e) {
   System.err
     .println("MailJdbcDao : send(MailBean mail) : AddressException : "
       + e.getMessage());
  } catch (MessagingException e) {
   System.err
     .println("MailJdbcDao : send(MailBean mail) : MessagingException : "
       + e.getMessage());
  } catch (UnsupportedEncodingException e) {
   System.err
     .println("MailJdbcDao : send(MailBean mail) : UnsupportedEncodingException : "
       + e.getMessage());
  }
  return false;
 }
}

/***************/
package mail;

import mail.Mail;

public interface MailDao {
 Boolean send(Mail mail);
}

/**************/
package mail;

import mail.Mail;
import mail.MailDao;
import mail.MailBean;

/** 邮件接口业务逻辑实现类 */
public class MailService {
 private static MailService mailService;

 public static MailDao md = new MailBean();

 /** 单例模式 */
 public static MailService getInstance() {
  if (mailService == null)
   mailService = new MailService();
  return mailService;
 }

 private MailService() {
  super();
 }

 /**发送邮件业务逻辑方法 */
 public Boolean send() {
  Mail mail=new Mail();
  mail.setUserName("");
  mail.setPassword("");
  mail.setHostSMTP("");
  mail.setSendFrom("");
  mail.setSendTo("");
  mail.setMailSubject("hello test ");
  mail.setMailContent("this is a ..");
  
  
  return md.send(mail);
 }
 
 public static void main(String[] args){
  Boolean f=MailService.getInstance().send();
  if(f) System.out.println("sucess");
  else System.out.println("fail");  
 }
}

/***************************/
package mail;

import java.io.UnsupportedEncodingException;

public class Util {
 // 在页面显示时用from8859()
 public static String from8859(String source) {
  try {
   return new String(source.getBytes("iso-8859-1"));
  } catch (UnsupportedEncodingException e) {
   e.printStackTrace();
  }
  return null;
 }

 // 往数据写入时用to8859()
 public static String to8859(String source) {
  try {
   return new String(source.getBytes(), "iso-8859-1");
  } catch (UnsupportedEncodingException e) {
   e.printStackTrace();
  }
  return null;
 }
}