JavaMail應用－－send mail實例

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



/**
 *
 * <p>Title: </p>
 *
 * <p>Description: </p>
 *
 * <p>Copyright: Copyright (c) 2006</p>
 * 
 * @author Kevinliuu
 * @version 1.0
 */
public class sendMail {

  private MimeMessage mimeMsg;  //MIME郵件對象

  private Session session;      //郵件會話對象
  private Properties props;     //系統屬性
  private boolean needAuth = false;  //smtp是否需要認證

  private String username = "";  //smtp認證用戶名和密碼
  private String password = "";

  private Multipart mp;    //Multipart對象,郵件內容,標題,附件等內容均添加到其中後再生成MimeMessage對象



 /**
  *
  */
  public sendMail() {
    setSmtpHost("smtp.163.com");//如果沒有指定郵件服務器,就從getConfig類中獲取
    createMimeMessage();
  }

  public sendMail(String smtp){
    setSmtpHost(smtp);
    createMimeMessage();
  }



 /**
  * @param hostName String
  */
  public void setSmtpHost(String hostName) {
    System.out.println("設置系統屬性：mail.smtp.host = "+hostName);
    if(props == null)props = System.getProperties();         //獲得系統屬性對象

    props.put("mail.smtp.host",hostName);                 //設置SMTP主機
  }


 /**
  * @return boolean
  */
  public boolean createMimeMessage()
  {
    try{
      System.out.println("準備獲取郵件會話對象！");
      session = Session.getDefaultInstance(props,null);   //獲得郵件會話對象
    }
    catch(Exception e){
      System.err.println("獲取郵件會話對象時發生錯誤！"+e);
      return false;
    }

    System.out.println("準備創建MIME郵件對象！");
    try{
      mimeMsg = new MimeMessage(session);                 //創建MIME郵件對象
      mp = new MimeMultipart();

      return true;
    }
    catch(Exception e){
      System.err.println("創建MIME郵件對象失敗！"+e);
      return false;
    }
  }



 /**
  * @param need boolean
  */
  public void setNeedAuth(boolean need) {
    System.out.println("設置smtp身份認證：mail.smtp.auth = "+need);
    if(props == null)props = System.getProperties();

    if(need){
      props.put("mail.smtp.auth","true");
    }else{
      props.put("mail.smtp.auth","false");
    }
  }



 /**
  * @param name String
  * @param pass String
  */
  public void setNamePass(String name,String pass) {
    username = name;
    password = pass;
  }


 /**
  * @param mailSubject String
  * @return boolean
  */
  public boolean setSubject(String mailSubject) {
    System.out.println("設置郵件主題！");
    try{
      mimeMsg.setSubject(mailSubject);
      return true;
    }
    catch(Exception e) {
      System.err.println("設置郵件主題發生錯誤！");
      return false;
    }
  }



 /**
  * @param mailBody String
  */
  public boolean setBody(String mailBody) {
    try{
      BodyPart bp = new MimeBodyPart();
      bp.setContent("<meta http-equiv=Content-Type content=text/html; charset=gb2312>"+mailBody,"text/html;charset=GB2312");
      mp.addBodyPart(bp);

      return true;
    }
    catch(Exception e){
      System.err.println("設置郵件正文時發生錯誤！"+e);
      return false;
    }
  }


 /**
  * @param name String
  * @param pass String
  */
  public boolean addFileAffix(String filename) {

 System.out.println("增加郵件附件："+filename);

 try{
      BodyPart bp = new MimeBodyPart();
      FileDataSource fileds = new FileDataSource(filename);
      bp.setDataHandler(new DataHandler(fileds));
      bp.setFileName(fileds.getName());

      mp.addBodyPart(bp);

      return true;
    }
    catch(Exception e){
      System.err.println("增加郵件附件："+filename+"發生錯誤！"+e);
      return false;
    }
  }



 /**
  * @param name String
  * @param pass String
  */
  public boolean setFrom(String from) {
    System.out.println("設置發信人！");
    try{
      mimeMsg.setFrom(new InternetAddress(from));             //設置發信人
      return true;
    }
    catch(Exception e)
    { return false; }
  }


 /**
  * @param name String
  * @param pass String
  */
  public boolean setTo(String to){
    if(to == null)return false;

    try{
      mimeMsg.setRecipients(Message.RecipientType.TO,InternetAddress.parse(to));
      return true;
    }
    catch(Exception e)
    {   return false;   }

  }

 /**
  * @param name String
  * @param pass String
  */
  public boolean setCopyTo(String copyto)
  {
    if(copyto == null)return false;
    try{
      mimeMsg.setRecipients(Message.RecipientType.CC,(Address[])InternetAddress.parse(copyto));
      return true;
    }
    catch(Exception e)
    { return false; }
  }


 /**
  * @param name String
  * @param pass String
  */
  public boolean sendout()
  {
    try{
      mimeMsg.setContent(mp);
      mimeMsg.saveChanges();
      System.out.println("正在發送郵件....");

      Session mailSession = Session.getInstance(props,null);
      Transport transport = mailSession.getTransport("smtp");
      transport.connect((String)props.get("mail.smtp.host"),username,password);
      transport.sendMessage(mimeMsg,mimeMsg.getRecipients(Message.RecipientType.TO));
      //transport.send(mimeMsg);

      System.out.println("發送郵件成功！");
      transport.close();

      return true;
    }
    catch(Exception e)
    {
      System.err.println("郵件發送失敗！"+e);
      return false;
    }
  }


  /**
   *  Just do it as this
   */
  public static void main(String[] args) {

    String mailbody = "hello,你好嗎????這是中文郵件測試";

    sendMail themail = new sendMail("smtp.163.com");  //設置smtp服務器
    themail.setNeedAuth(true); //服務器需要身份驗證

    if(themail.setSubject("標題") == false) return;  //設置標題
    if(themail.setBody(mailbody) == false) return; //正文內容
    if(themail.setTo("[email protected]") == false) return; //收件人
    if(themail.setFrom("[email protected]") == false) return; //發件人
    if(themail.addFileAffix("c://測試.txt") == false) return; //附件   請使用絕對地址
    themail.setNamePass("name","password");  //發件人的郵箱帳號，密碼

    if(themail.sendout() == false) return;
  }
}