java邮件发送

java邮件发送实例

 

package com.udbac.util;

import java.util.Properties;
import javax.mail.Address;
import javax.mail.BodyPart;
import javax.mail.Message;
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;
public class Mail {
    private MimeMessage mimeMsg;
    private Session session;
    private Properties props;
    private String username;
    private String password;
    private Multipart mp;
    public Mail(String smtp) {
        setSmtpHost(smtp);
        createMimeMessage();
    }
    public void setSmtpHost(String hostName) {
        System.out.println("设置系统属性：mail.smtp.host=" + hostName);
        if (props == null) {
            props = System.getProperties();
        }
        props.put("mail.smtp.host", hostName);
    }
    public boolean createMimeMessage() {
        try {
            System.out.println("准备获取邮件会话对象！");
            session = Session.getDefaultInstance(props, null);
        } catch (Exception e) {
            System.out.println("获取邮件会话错误！" + e);
            return false;
        }
        System.out.println("准备创建MIME邮件对象！");
        try {
            mimeMsg = new MimeMessage(session);
            mp = new MimeMultipart();
 
            return true;
        } catch (Exception e) {
            System.out.println("创建MIME邮件对象失败！" + e);
            return false;
        }
    }
 
    /*定义SMTP是否需要验证*/
    public void setNeedAuth(boolean need) {
        System.out.println("设置smtp身份认证：mail.smtp.auth = " + need);
        if (props == null)
            props = System.getProperties();
        if (need) {
            props.put("mail.smtp.auth", "true");
            //props.put("mail.smtp.port","465");
        } else {
            props.put("mail.smtp.auth", "false");
        }
    }
    public void setNamePass(String name, String pass) {
        username = name;
        password = pass;
    }



    /*定义邮件主题*/

    public boolean setSubject(String mailSubject) {
        System.out.println("定义邮件主题！");
        try {
            mimeMsg.setSubject(mailSubject);
            return true;
        } catch (Exception e) {
            System.err.println("定义邮件主题发生错误！");
            return false;
        }
    }

    /*定义邮件正文*/

    public boolean setBody(String mailBody) {
        try {
            BodyPart bp = new MimeBodyPart();
            bp.setContent("" + mailBody, "text/html;charset=GBK");
            mp.addBodyPart(bp);
            return true;
        } catch (Exception e) {
            System.err.println("定义邮件正文时发生错误！" + e);
            return false;
        }
    }

    /*设置发信人*/
    public boolean setFrom(String from) {
        System.out.println("设置发信人！");
        try {
            mimeMsg.setFrom(new InternetAddress(from)); //发信人
            return true;
        } catch (Exception e) {
            return false;
        }
    }

    /*定义收信人*/
    public boolean setTo(String to) {
        if (to == null)
            return false;
        System.out.println("定义收信人！");
        try {
            mimeMsg.setRecipients(Message.RecipientType.TO, InternetAddress.parse(to));
            return true;
        } catch (Exception e) {
            return false;
        }
    }



    /*定义抄送人*/
    public boolean setCopyTo(String copyto) {
        if (copyto == null)
            return false;
        try {
            mimeMsg.setRecipients(Message.RecipientType.CC, (Address[]) InternetAddress
                    .parse(copyto));
            return true;
        } catch (Exception e) {
            return false;
        }
    }

    /*发送邮件模块*/
    public boolean sendOut() {
        try {
            mimeMsg.setContent(mp);
            mimeMsg.saveChanges();
            System.out.println("邮件发送中....");
            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("发送成功！");
            transport.close();
            return true;
        } catch (Exception e) {
            System.err.println("邮件失败！" + e);
            return false;
        }
    }

    /*调用sendOut方法完成发送*/
    public static boolean sendAndCc(String smtp, String from, String to, String copyto,
        String subject, String content, String username, String password) {
        Mail theMail = new Mail(smtp);
        theMail.setNeedAuth(true); // 验证
        if (!theMail.setSubject(subject))
            return false;
        if (!theMail.setBody(content))
            return false;
        if (!theMail.setTo(to))
            return false;
        if (!theMail.setCopyTo(copyto))
            return false;
        if (!theMail.setFrom(from))
            return false;
        theMail.setNamePass(username, password);
        if (!theMail.sendOut())
            return false;
        return true;
    }

    
        //运行
       public static void main(String[] args) {
         String smtp = "smtp.126.com";// smtp服务器
         String from = "zhangtongzct@126.com";// 邮件显示名称
         String to = "864838633@qq.com";// 收件人的邮件地址，必须是真实地址
         String copyto = "";// 抄送人邮件地址
         String subject = "测试邮件555";// 邮件标题
         String content = "你好！";// 邮件内容
         String username = "zhangtongzct@126.com";// 发件人真实的账户名
         String password = "*****";// 发件人密码
         Mail.sendAndCc(smtp, from, to, copyto, subject, content, username, password);
     }
}