java郵件發送

初始化設置郵件屬性類，又來接收各個需要的參數

public class emailData {
    private String   host;
    private String   username;
    private String   password;
    private String   from;               //發件人
    private String[] recipients  = null; //收件人
    private String[] carbonCopy  = null; //抄送人
    private String[] adenoidBcc  = null; //密送人
    private String   subject;            //主題
    private String   content;            //內容
    private String   contentType = null; //郵件內容格式(文本或html)
    private String[] fileName    = null; //附件文件名(提供一個附件或多個) 
    private boolean  validate    = false; // 是否需要身份驗證

    public emailData() {
    }

    public String getHost() {
        return host;
    }

    public void setHost(String host) {
        this.host = host;
    }

    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 getFrom() {
        return from;
    }

    public void setFrom(String from) {
        this.from = from;
    }

    public String getSubject() {
        return subject;
    }

    public void setSubject(String subject) {
        this.subject = subject;
    }

    public String getContent() {
        return content;
    }

    public void setContent(String content) {
        this.content = content;
    }

    public String[] getRecipients() {
        return recipients;
    }

    public void setRecipients(String[] recipients) {
        this.recipients = recipients;
    }

    public String getContentType() {
        return contentType;
    }

    public void setContentType(String contentType) {
        this.contentType = contentType;
    }

    public String[] getFileName() {
        return fileName;
    }

    public String[] getCarbonCopy() {
        return carbonCopy;
    }

    public void setCarbonCopy(String[] carbonCopy) {
        this.carbonCopy = carbonCopy;
    }

    public String[] getAdenoidBcc() {
        return adenoidBcc;
    }

    public void setAdenoidBcc(String[] adenoidBcc) {
        this.adenoidBcc = adenoidBcc;
    }

    public void setFileName(String[] fileName) {
        this.fileName = fileName;
    }

    public boolean isValidate() {
        return validate;
    }

    public void setValidate(boolean validate) {
        this.validate = validate;
    }

}

實現類

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

import javax.activation.DataHandler;
import javax.activation.FileDataSource;
import javax.mail.AuthenticationFailedException;
import javax.mail.Authenticator;
import javax.mail.BodyPart;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.Multipart;
import javax.mail.PasswordAuthentication;
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;

import com.excec.bean.emailData;

/**
 * 
 * Filename:    Email.java  
 * Description:   
 * Copyright:   Copyright (c) 2012-2013 All Rights Reserved.
 * Company:     golden-soft.com Inc.
 * @author:     Administrator 
 * @version:    1.0  
 * Create at:   Apr 17, 2013 11:30:10 AM  
 *  
 * Modification History:  
 * Date         Author      Version     Description  
 * ------------------------------------------------------------------  
 * Apr 17, 2013      Administrator      1.0         1.0 Version  
 *
 */
public class Email {
    /**  
     * 創建一個內部類判斷是否驗證身份
     */
    class MyAuthenticator extends Authenticator {
        String userName = null;
        String password = null;

        public MyAuthenticator() {
            super();
        }

        public MyAuthenticator(String username, String password) {
            this.userName = username;
            this.password = password;
        }

        @Override
        protected PasswordAuthentication getPasswordAuthentication() {
            return new PasswordAuthentication(userName, password);
        }
    }

    //發送郵件
    public boolean sendMail(emailData email) {
        String username = email.getUsername();
        String password = email.getPassword();
        String from = email.getFrom();
        String[] recipients = email.getRecipients();
        String subject = email.getSubject();
        String content = email.getContent();
        String contentType = email.getContentType();
        String[] fileName = email.getFileName();
        String[] carbonCopy = email.getCarbonCopy();
        String[] adenoidBcc = email.getAdenoidBcc();

        try {
            // 判斷是否需要身份認證   
            MyAuthenticator authenticator = null;
            Properties props = getProperties(email);
            if (email.isValidate()) {
                // 如果需要身份認證，則創建一個密碼驗證器   
                authenticator = new MyAuthenticator(username, password);
            }
            //創建缺省的session對象
            Session session = Session.getDefaultInstance(props, authenticator);
            session.setDebug(true);
            MimeMessage message = new MimeMessage(session); //郵件會話新建一個郵件信息

            //檢查郵件地址是否合法
            if (from == null || from == "") {
                throw new Exception("Error Email Address in From.");
            }
            //檢查收件人
            if (recipients == null || recipients.length <= 0) {
                throw new Exception("Error Email Address in To.");
            }

            //設置源地址-發件人
            InternetAddress addressFrom = new InternetAddress(from);
            message.setFrom(addressFrom);

            //設置目的地址-收件人
            InternetAddress[] addressTo = new InternetAddress[recipients.length];
            for (int i = 0; i < recipients.length; i++) {
                addressTo[i] = new InternetAddress(recipients[i]);
            }
            message.setRecipients(Message.RecipientType.TO, addressTo);

            //設置抄送人地址
            if (carbonCopy != null && carbonCopy.length > 0) {
                InternetAddress[] addressCarbon = new InternetAddress[carbonCopy.length];
                for (int i = 0; i < carbonCopy.length; i++) {
                    addressCarbon[i] = new InternetAddress(carbonCopy[i]);
                }
                message.setRecipients(Message.RecipientType.CC, addressCarbon); // 抄送人
            }

            //設置密送人地址
            if (adenoidBcc != null && adenoidBcc.length > 0) {
                InternetAddress[] addressAdenoid = new InternetAddress[adenoidBcc.length];
                for (int i = 0; i < carbonCopy.length; i++) {
                    addressAdenoid[i] = new InternetAddress(adenoidBcc[i]);
                }
                message.setRecipients(Message.RecipientType.BCC, addressAdenoid); // 密送人
            }
            //設置郵件標題，中文編碼-消息的主題 
            subject = MimeUtility.encodeText(new String(subject.getBytes(), "GB2312"), "GB2312","B");
            message.setSubject(subject);

            /*******************消息內容***********************************************/
            //設置郵件內容,區分文本格式和HTML格式
            if (contentType == null || contentType.equals("text")) {
                message.setText(content);
            } else if (contentType.equals("html")) {
                // 向multipart對象中添加郵件的各個部分內容，包括文本內容和附件
                Multipart multipart = new MimeMultipart();

                //給消息對象設置內容
                BodyPart mbp = new MimeBodyPart(); //新建一個存放信件內容的MimeBodyPart對象
                mbp.setContent(content, "text/html;charset=gb2312");//給MimeBodyPart對象設置內容和格式/編碼方式

                //設置郵件附件
                BodyPart mmp;
                FileDataSource fileDataSource;
                for (int i = 0; i < fileName.length; i++) {
                    mmp = new MimeBodyPart();
                    fileDataSource = new FileDataSource(fileName[i]);
                    mmp.setDataHandler(new DataHandler(fileDataSource));
                    /***************需要對附件文件名稱進行轉碼，不然會出現亂碼 ******************/
                    sun.misc.BASE64Encoder enc = new sun.misc.BASE64Encoder();
                    mmp.setFileName("=?GB2312?B?" + enc.encode(fileDataSource.getName().getBytes()) + "?=");
                    multipart.addBodyPart(mmp);
                }
                multipart.addBodyPart(mbp);
                message.setContent(multipart);//把mm作爲消息對象的內容 
            }

            message.setSentDate(new Date()); //設置發送的時間
            //保存郵件
            message.saveChanges();
            Transport transport = session.getTransport("smtp"); //設置郵件傳輸

            transport.connect((String) props.get("mail.smtp.host"), username, password); //連接主機

            transport.sendMessage(message, message.getRecipients(MimeMessage.RecipientType.TO)); //發送郵件

            System.out.println("Send Success !");

            transport.close(); //關閉傳輸

            return true;

        } catch (AuthenticationFailedException e) {
            e.printStackTrace();
            return false;
        } catch (MessagingException e) {
            e.printStackTrace();
            return false;
        } catch (Exception e) {
            e.printStackTrace();
            return false;
        }
    }

    /**  
     * 獲得郵件會話屬性  
     */
    public Properties getProperties(emailData email) {
        Properties props = new Properties();//存儲連接參數
        props.put("mail.smtp.host", email.getHost());//郵件服務器"smtp.ym.163.com"
        props.put("mail.smtp.port", "25");    
        props.put("mail.smtp.connectiontimeout", "10000");
        props.put("mail.smtp.timeout", "10000");
        props.put("mail.smtp.auth", email.isValidate() ? "true" : "false");
        return props;
    }

    //主方法
    public static void main(String[] args) {
        emailData email = new emailData();
        email.setHost("smtp.163.com");//郵件服務器
        email.setUsername("[email protected]");//郵箱
        email.setPassword("8888");//密碼
        email.setFrom("[email protected]");//發送人自己
        String list[] = { "[email protected]","[email protected]" };
        email.setRecipients(list);//接收人
        email.setSubject("AAAA");//標題
        email.setContent("你好");//內容
        email.setContentType("html");//類型
        String fileName[] = {};//附件
        email.setFileName(fileName);
        String bcc[] = {};
        email.setAdenoidBcc(bcc);//密送
        String cc[] = {};
        email.setCarbonCopy(cc);//抄送
        email.setValidate(true);//設置驗證
        new Email().sendMail(email);
    }
}