通过JMail发送邮件例子

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

import javax.activation.DataHandler;
import javax.activation.FileDataSource;
import javax.mail.Address;
import javax.mail.BodyPart;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.Multipart;
import javax.mail.SendFailedException;
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 MailSend {

    private MimeMessage mimeMsg; //MIME邮件对象

    private Session session; //邮件会话对象

    private Properties props; //系统属性

    private boolean needAuth = false; //smtp是否需要认证

    private String username = ""; //smtp认证用户名和密码

    private String password = "";

    private Multipart mp = new MimeMultipart(); //Multipart对象,邮件内容,标题,附件等内容均添加到其中后再生成MimeMessage对象

    public MailSend() {
        try {
            //  System.out.println("设置系统属性：mail.smtp.host = "+"mail.tplife.com");
            if (props == null) {
                props = System.getProperties(); //获得系统属性对象
            }
            props.put("mail.smtp.host", "mail.tplife.com"); //设置SMTP主机
            //  System.out.println("准备获取邮件会话对象！");
            session = Session.getDefaultInstance(props, null); //获得邮件会话对象
            mimeMsg = new MimeMessage(session); //创建MIME邮件对象
        } catch (Exception e) {
            System.err.println("邮件初始化失败！" + e);
        }
    }

    public void setSubject(String sub) {
        try {
            mimeMsg.setSubject(sub, "GB2312");
            //   System.out.println("设置邮件标题为：" + sub + ".");
        } catch (Exception e) {
            System.err.println("邮件标题设置失败！" + e);
        }
    }

    public void setContent(String text, String type) {
        try {
            BodyPart bp = new MimeBodyPart();
            bp.setContent(text, type);
            mp.addBodyPart(bp);
            //   System.out.println("正在设置邮件内容");
        } catch (Exception e) {
            System.err.println("邮件内容设置失败！" + e);
        }
    }

    public void setText(String text) {
        try {
            BodyPart bp = new MimeBodyPart();
            bp.setText(text);
            mp.addBodyPart(bp);
            //  System.out.println("正在设置邮件内容");
        } catch (Exception e) {
            System.err.println("邮件内容设置失败！" + e);
        }
    }

    public void addAttach(String AttachURL) {
        try {
            //添加附件
            BodyPart bp = new MimeBodyPart();
            BASE64Encoder enc = new BASE64Encoder();//解决附件名乱码问题
            FileDataSource fileds = new FileDataSource(AttachURL);
            bp.setDataHandler(new DataHandler(fileds));
            bp.setFileName("=?GBK?B?" + enc.encode((fileds.getName()).getBytes()) + "?=");
            //  System.out.println("增加邮件附件：" + fileds.getName());
            mp.addBodyPart(bp);
        } catch (Exception e) {
            System.err.println("邮件附件粘贴失败！" + e);
        }
    }

    public void clearAttach() {
        try {
            int n = mp.getCount();
            System.out.println();
            for (int i = 0; i <= n - 1; i++) {
                mp.removeBodyPart(0);
            }
            mimeMsg.setContent(mp);
            mimeMsg.saveChanges();
        } catch (Exception e) {
            System.err.println("清除附件失败！" + e);
        }
    }

    public void setFrom(String address) {
        try {
            mimeMsg.setFrom(new InternetAddress(address)); //设置发信人
            //   System.out.println("正在设置发件人地址");
        } catch (Exception e) {
            System.err.println("邮件发件人地址设置失败！" + e);
        }
    }

    public void setRecipients(String address) {
        try {
            mimeMsg.setRecipients(Message.RecipientType.TO, InternetAddress.parse(address)); //收信人
            //  System.out.println("正在设置收件人地址");
        } catch (Exception e) {
            System.err.println("邮件收件人地址设置失败！" + e);
        }
    }

    public void setRecipients(String[] address, String type) {
        try {
            Address[] add = new Address[address.length];
            if (address.length - 1 >= 0) {
                for (int i = 0; i <= address.length - 1; i++) {
                    add[i] = new InternetAddress(address[i]);
                }
                if (type == null)
                    type = "TO";
                if (type == "TO")
                    mimeMsg.setRecipients(Message.RecipientType.TO, add);
                else if (type == "CC")
                    mimeMsg.setRecipients(Message.RecipientType.CC, add);
                else if (type == "BCC")
                    mimeMsg.setRecipients(Message.RecipientType.BCC, add);//收信人
                else
                    System.out.println("类型不正确!");
                /// System.out.println("正在设置收件人地址");
            }
        } catch (Exception e) {
            System.err.println("邮件收件人地址设置失败！" + e);
        }
    }

    public void setSentDate() {
        try {
            mimeMsg.setSentDate(new Date());
        } catch (Exception e) {
            System.err.println("时间设置失败！" + e);
        }
    }

    public boolean sendMail() {
        boolean flag = false;
        try {

            mimeMsg.setContent(mp);
            mimeMsg.saveChanges();
            System.out.println("正在发送邮件....");
            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));
            System.out.println("发送邮件成功！");
            transport.close();
            flag = true;
        } catch (SendFailedException e1) {
            System.err.println("邮件发送失败SendFailed！" + e1);
            return false;

        } catch (MessagingException e2) {
            System.err.println("邮件发送失败Messaging！" + e2);
            return false;

        } catch (Exception e3) {
            System.err.println("邮件发送失败！" + e3);
            return false;
        }

        return flag;
    }

    public static void main(String argv[]) {

        MailSend ms = new MailSend();
        ms.setSubject("");
        ms.setText("");
        ms.setFrom("liumin3@tplife.com");
        Vector TO = new Vector();
        TO.add("liumin3@tplife.com");
        TO.add("liumin3@tplife.com");
        ms.setRecipients((String[]) TO.toArray(), "TO");
        ms.setSentDate();
        ms.sendMail();

    }
}

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