java 实现邮件发送

1.下载一个mail.jar架包

http://download.csdn.net/detail/woainimax/9748744

2.AnnexMailService.java

import java.util.Properties;import javax.activation.DataHandler;import javax.activation.DataSource;import javax.activation.FileDataSource;import javax.mail.BodyPart;import javax.mail.Message;import javax.mail.Message.RecipientType;import javax.mail.Multipart;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 sun.misc.BASE64Encoder;public class AnnexMailService {    private String host = "";    private String from = "";    private String to = "";    private String affix = "";    private String affixName = "";    private String user = "";    private String pwd = "";    private String subject = "";    public void setAddress(String from, String to, String subject) {        this.from = from;        this.to = to;        this.subject = subject;    }    public void setAffix(String affix, String affixName) {        this.affix = affix;        this.affixName = affixName;    }    public void send(String host, String user, String pwd) {        this.host = host;        this.user = user;        this.pwd = pwd;        Properties props = new Properties();        props.put("mail.smtp.host", host);        props.put("mail.smtp.auth", "true");        props.put("mail.smtp.port", Integer.valueOf(465));        props.put("mail.smtp.ssl.enable", Boolean.valueOf(true));        Session session = Session.getDefaultInstance(props);        session.setDebug(true);        MimeMessage message = new MimeMessage(session);        try {            message.setFrom(new InternetAddress(this.from));            message.addRecipient(Message.RecipientType.TO, new InternetAddress(                    this.to));            message.setSubject(this.subject);            Multipart multipart = new MimeMultipart();            BodyPart contentPart = new MimeBodyPart();            contentPart.setText("第二种方法···");            multipart.addBodyPart(contentPart);            BodyPart messageBodyPart = new MimeBodyPart();            DataSource source = new FileDataSource(this.affix);            messageBodyPart.setDataHandler(new DataHandler(source));            BASE64Encoder enc = new BASE64Encoder();            messageBodyPart.setFileName("=?GBK?B?"                    + enc.encode(this.affixName.getBytes()) + "?=");            multipart.addBodyPart(messageBodyPart);            message.setContent(multipart);            message.saveChanges();            Transport transport = session.getTransport("smtp");            transport.connect(host, user, pwd);            transport.sendMessage(message, message.getAllRecipients());            transport.close();        } catch (Exception e) {            e.printStackTrace();        }    }    public static void main(String[] args) {                AnnexMailService cn = new AnnexMailService();        // 设置发件人地址、收件人地址和邮件标题        cn.setAddress("[e-mail]", "[e-mail]", "text测试");        // 设置要发送附件的位置和标题        cn.setAffix("D:\\adcfg.json", "abcfg.json");        // 设置smtp服务器以及邮箱的帐号和密码        cn.send("smtp.163.com", "[e-mail]", "****");    }}