import java.util.*;
import javax.activation.*;
import javax.mail.*;
import javax.mail.internet.*;
    
/**
 * <p>Title: 简单的MailBean</p>
 * <p>Description: 提供简便的Mail发送功能（支持多附件及身份验证）</p>
 * <p>Copyright: Copyright (c) 2003</p>
 * <p>Company: </p>
 * @author diystar
 * @version 1.0
 */
public class SimpleMail
{
    private String sender = null;//发件人地址
    private String smtpHost = null;//邮件发送服务器（smtp）
    private String user = null;//登录用户名
    private String password = null;//登录密码
    
    private String receiver = null;//收件人地址
    private String copyReceiver = null;//抄送人地址
    private String hiddenReceiver = null;//暗送人地址
    
    private String subject = null;//mail主题
    private String content = null;//mail内容
    private String affixPath = null;//mail附件的路径
    
    /** 设置发件人地址 */
    public void setSender(String sender) {this.sender = sender;}
    public String getSender() {return sender;}
    
    /** 设置邮件发送服务器（smtp） */
    public void setSmtpHost(String smtpHost) {this.smtpHost = smtpHost;}
    public String getSmtpHost() {return smtpHost;}
    
    /** 设置登录用户名 */
    public void setUser(String user) {this.user = user;}
    public String getUser() {return user;}
    
    /** 设置登录密码 */
    public void setPassword(String password) {this.password = password;}
    public String getPassword() {return password;}
    
    /** 设置收件人地址 */
    public void setReceiver(String receiver) {this.receiver = receiver;}
    public String getReceiver() {return receiver;}
    
    /** 设置抄送人地址 */
    public void setCopyReceiver(String receiver) {this.copyReceiver = receiver;}
    public String getCopyReceiver() {return copyReceiver;}
    
    /** 设置暗送人地址 */
    public void setHiddenReceiver(String receiver) {this.hiddenReceiver = receiver;}
    public String getHiddenReceiver() {return hiddenReceiver;}
    
    /** 设置mail主题 */
    public void setSubject(String subject) {this.subject = subject;}
    public String getSubject() {return subject;}
    
    /** 设置mail内容 */
    public void setContent(String content) {this.content = content;}
    public String getContent() {return content;}
    
    /** 设置mail附件的路径 */
    public void setAffixPath(String affixPath) {this.affixPath = affixPath;}
    public String getAffixPath() {return affixPath;}
    
    /**
     * 使用smtp发送邮件
     * @throws MessagingException mail发送失败
     */
    public void smtp() throws MessagingException
    {
        if (smtpHost == null) throw new MessagingException("smtpHost not found");
        if (user == null) throw new MessagingException("user not found");
        if (password == null) throw new MessagingException("password not found");
        if (receiver == null && copyReceiver == null && hiddenReceiver == null)
            throw new MessagingException("receiver not found");
    
        Properties properties = new Properties();
        properties.put("mail.smtp.host", smtpHost);//设置smtp主机
        properties.put("mail.smtp.auth", "true");//使用smtp身份验证
    
        Session session = Session.getDefaultInstance(properties, new Authenticator()
        {
            public PasswordAuthentication getPasswordAuthentication()
            {
                return new PasswordAuthentication(user, password);
            }
        });//获得邮件会话对象
    
        MimeMessage mimeMsg = new MimeMessage(session);//创建MIME邮件对象
    
        if (sender != null)//设置发件人地址
            mimeMsg.setFrom(new InternetAddress(sender));
    
        if (receiver != null)//设置收件人地址
            mimeMsg.setRecipients(Message.RecipientType.TO, parse(receiver));
    
        if (copyReceiver != null)//设置抄送人地址
            mimeMsg.setRecipients(Message.RecipientType.CC, parse(copyReceiver));
    
        if (hiddenReceiver != null)//设置暗送人地址
            mimeMsg.setRecipients(Message.RecipientType.BCC, parse(hiddenReceiver));
    
        if (subject != null)//设置邮件主题
            mimeMsg.setSubject(subject, "UTF-8");
    
        MimeBodyPart part = new MimeBodyPart();//mail内容部分
        part.setText(content == null ? "" : content, "UTF-8");
    
        Multipart multipart = new MimeMultipart();
        multipart.addBodyPart(part);//在 Multipart 中增加mail内容部分
    
        if (affixPath != null)//mail附件部分
        {
            ArrayList parts = parsePath(affixPath);
            for (int i = 0; i < parts.size(); i ++)
            {
                multipart.addBodyPart( (MimeBodyPart) parts.get(i));
            }
        }
    
        mimeMsg.setContent(multipart);//增加 Multipart 到信息体
        mimeMsg.setSentDate(new Date());//设置发送日期

        Transport.send(mimeMsg);//发送邮件
    }
    
    /** 解析地址集合字符串 */
    private InternetAddress[] parse(String addressSet) throws AddressException
    {
        ArrayList list = new ArrayList();

        StringTokenizer tokens = new StringTokenizer(addressSet, ";");
        while (tokens.hasMoreTokens())
        {
            list.add(new InternetAddress(tokens.nextToken().trim()));
        }

        InternetAddress[] addressArray = new InternetAddress[list.size()];
        list.toArray(addressArray);
        return addressArray;
    }
    
    /** 解析附件路径字符串 */
    private ArrayList parsePath(String affixPath) throws MessagingException
    {
        ArrayList list = new ArrayList();

        StringTokenizer tokens = new StringTokenizer(affixPath, ";");
        while (tokens.hasMoreTokens())
        {
            MimeBodyPart part = new MimeBodyPart();
            FileDataSource source = new FileDataSource(tokens.nextToken().trim());
            part.setDataHandler(new DataHandler(source));
            part.setFileName(source.getName());
            list.add(part);
        }

        return list;
    }
    
    /** 一个简单的用例，大家只要将相关的参数改成自己的就行 */    
    public static void main(String[] args)
    {
        SimpleMail mail = new SimpleMail();
        mail.setSender("my@21cn.com");
        mail.setSmtpHost("pop.21cn.com");
        mail.setUser("user");
        mail.setPassword("password");
        mail.setReceiver("other1@21cn.com; other2@21cn.com");
        mail.setContent("test mail sender");
        mail.setAffixPath("C:/boot.ini; C:/config.sys");

        try
        {
            mail.smtp();
        }
        catch (MessagingException ex)
        {
            ex.printStackTrace();
        }
    }

}

asdlcj wrote:
大哥！你说啊！
怎么设置 啊

牛老板 wrote:
呵呵，我用了几种转换方式，终于让他们该换行就换行，呵呵，累死了，收藏了这个贴子.