Jmail的简单应用

java 代码

package bruce;

import java.util.Date;
import java.util.Enumeration;
import java.util.Properties;
import java.util.Vector;

import javax.activation.DataHandler;
import javax.activation.FileDataSource;
import javax.mail.Authenticator;
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;

public class SendMail {
    String to = "";//收件人
    String from = "";//发件人
    String smtpServer = "";//smtp服务器
    String username = "" ;
    String password = "" ;
    String filename = "";//附件文件名
    String subject = "";//邮件主题
    String content = "";//邮件正文
    Vector file = new Vector();//附件文件集合

    public SendMail()
    {
    }
    public SendMail(String to,String from,String smtpServer,String username,String password,String subject,String content)
    {
        this.to = to;
        this.from = from;
        this.smtpServer = smtpServer;
        this.username = username;
        this.password = password;
        this.subject = subject;
        this.content = content;
    }

    public void setSmtpServer(String smtpServer)
    {
        this.smtpServer = smtpServer;
    }
    public void setUserName(String usename)
    {
        this.username = usename;
    }
    public void setPassWord(String pwd)
    {
        this.password = pwd;
    }
    public void setTo(String to)
    {
        this.to = to;
    }
    public void setFrom(String from)
    {
        this.from = from;
    }
    public void setSubject(String subject)
    {
        this.subject = subject;
    }
    public void setContent(String content)
    {
        this.content = content;
    }

    //把邮件主题转换为中文
    public String transferChinese(String strText)
    {
        try
        {
            strText = MimeUtility.encodeText(new String(strText.getBytes(), "GB2312"), "GB2312", "B");
        }
        catch(Exception e)
        {
            e.printStackTrace();
        }
        return strText;
    }
    //增加附件
    public void attachfile(String fname)
    {
        file.addElement(fname);
    }

    public boolean send()
    {
        //构造mail session
        Properties props = System.getProperties();
        props.put("mail.smtp.host",smtpServer);
        props.put("mail.smtp.auth","true");
        Session session=Session.getDefaultInstance(props, new Authenticator()
            {
                public PasswordAuthentication getPasswordAuthentication()
                {
                    return new PasswordAuthentication(username,password);
                }
            });
        try
        {
            //构造MimeMessage 并设定基本的值
            MimeMessage msg = new MimeMessage(session);
            msg.setFrom(new InternetAddress(from));
            InternetAddress[] address={new InternetAddress(to)};
            msg.setRecipients(Message.RecipientType.TO,address);
            subject = transferChinese(subject);
            msg.setSubject(subject);
            //构造Multipart
            Multipart mp = new MimeMultipart();
            //向Multipart添加正文
            MimeBodyPart mbpContent = new MimeBodyPart();
            mbpContent.setText(content);
            //向MimeMessage添加（Multipart代表正文）
            mp.addBodyPart(mbpContent);
            //向Multipart添加附件
            Enumeration efile=file.elements();
            while(efile.hasMoreElements())
            {
                MimeBodyPart mbpFile = new MimeBodyPart();
                filename=efile.nextElement().toString();
                FileDataSource fds = new FileDataSource(filename);
                mbpFile.setDataHandler(new DataHandler(fds));
                mbpFile.setFileName(fds.getName());
                //向MimeMessage添加（Multipart代表附件）
                mp.addBodyPart(mbpFile);
            }
            file.removeAllElements();
            //向Multipart添加MimeMessage
            msg.setContent(mp);
            msg.setSentDate(new Date());
            //发送邮件
            Transport.send(msg);
        }
        catch (MessagingException mex)
        {
            mex.printStackTrace();
            Exception ex = null;
            if ((ex=mex.getNextException())!=null)
            {
                ex.printStackTrace();
            }
            return false;
        }
        return true;
    }

    public static void main(String[] args)
    {
        SendMail sendmail = new SendMail();
        sendmail.setSmtpServer("smtp.163.com");
        //此处设置登陆的用户名
        sendmail.setUserName("username");
        //此处设置登陆的密码
        sendmail.setPassWord("password");
        //发送的地址
        sendmail.setTo("[email protected]");
        //发送人
        sendmail.setFrom("[email protected]");
        //设置标题
        sendmail.setSubject("你好，这是测试！");
        //设置内容
        sendmail.setContent("你好这是一个带多附件的测试！");
        //粘贴附件
        sendmail.attachfile("bruce/SendMail.java");
        //sendmail.attachfile("build.xml");
        sendmail.send();
    }
}