通过javaMail发送邮件，可设置多个收件人，多个附件

通过javaMail发送邮件，可设置多个收件人，发送多个附件：

附件名称为中文时无乱码现象

 

详见代码：

 

SendMailTest .java:

 

package com.test;

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

import javax.activation.DataHandler;
import javax.activation.FileDataSource;
import javax.mail.Authenticator;
import javax.mail.Multipart;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeBodyPart;
import javax.mail.internet.MimeMultipart;
import javax.mail.internet.MimeUtility;


/**
 * 利用java.mail的邮件发送程序
 */

public class SendMailTest {


    public static void main(String[] args) {
        String title = "邮件主题";// 所发送邮件的标题
        String from = "[e-mail]";// 从那里发送
        String sendTo[] = { "[e-mail]", "[e-mail]" };// 发送到那里
        // 邮件的文本内容，可以包含html标记则显示为html页面
        String content = "mail test!!!!!!<br><a href=#>aaa</a>";
        // 所包含的附件，及附件的重新命名
        String fileNames[] = { "D:\\test.txt,test.txt","D:\\test2.txt,哈哈.txt" };
        try {
            // MailSender mailsender = new MailSender();
            sendmail(title, from, sendTo, content, fileNames,
                    "text/html;charset=gb2312");
        } catch (Exception ex) {
            ex.printStackTrace();
        }
    }

    public static void sendmail(String subject, String from, String[] to,
            String text, String[] filenames, String mimeType) throws Exception {
        // ResourceBundle mailProps = ResourceBundle.getBundle("mail");
        // 可以从配置文件读取相应的参数
        Properties props = new Properties();

        String smtp = "smtp.126.com"; // 设置发送邮件所用到的smtp
        String servername = "[e-mail]";
        String serverpaswd = "hello123";

        javax.mail.Session mailSession; // 邮件会话对象
        javax.mail.internet.MimeMessage mimeMsg; // MIME邮件对象

        props = java.lang.System.getProperties(); // 获得系统属性对象
        props.put("mail.smtp.host", smtp); // 设置SMTP主机
        props.put("mail.smtp.auth", "true"); // 是否到服务器用户名和密码验证
        // 到服务器验证发送的用户名和密码是否正确
        Email_Autherticatorbean myEmailAuther = new Email_Autherticatorbean(
                servername, serverpaswd);
        // 设置邮件会话
        mailSession = javax.mail.Session.getInstance(props,
                (Authenticator) myEmailAuther);

        //设置debug打印信息
        mailSession.setDebug(true);

        // 设置传输协议
        javax.mail.Transport transport = mailSession.getTransport("smtp");
        // 设置from、to等信息
        mimeMsg = new javax.mail.internet.MimeMessage(mailSession);
        if (!from.isEmpty()) {

            InternetAddress sentFrom = new InternetAddress(from);
            mimeMsg.setFrom(sentFrom); // 设置发送人地址
        }

        InternetAddress[] sendTo = new InternetAddress[to.length];
        for (int i = 0; i < to.length; i++) {
            System.out.println("发送到:" + to[i]);
            sendTo[i] = new InternetAddress(to[i]);
        }

        mimeMsg.setRecipients(javax.mail.internet.MimeMessage.RecipientType.TO,
                sendTo);
        mimeMsg.setSubject(subject, "gb2312");

        MimeBodyPart messageBodyPart1 = new MimeBodyPart();
        // messageBodyPart.setText(UnicodeToChinese(text));
        messageBodyPart1.setContent(text, mimeType);

        Multipart multipart = new MimeMultipart();// 附件传输格式
        multipart.addBodyPart(messageBodyPart1);

        for (int i = 0; i < filenames.length; i++) {
            MimeBodyPart messageBodyPart2 = new MimeBodyPart();
            // 选择出每一个附件名
            String filename = filenames[i].split(",")[0];
            System.out.println("附件名：" + filename);
            String displayname = filenames[i].split(",")[1];
            // 得到数据源
            FileDataSource fds = new FileDataSource(filename);
            // 得到附件本身并至入BodyPart
            messageBodyPart2.setDataHandler(new DataHandler(fds));
            // 得到文件名同样至入BodyPart
            // messageBodyPart2.setFileName(displayname);
            // messageBodyPart2.setFileName(fds.getName());
            messageBodyPart2.setFileName(MimeUtility.encodeText(displayname));
            multipart.addBodyPart(messageBodyPart2);
        }
        mimeMsg.setContent(multipart);
        // 设置信件头的发送日期
        mimeMsg.setSentDate(new Date());
        mimeMsg.saveChanges();
        // 发送邮件
        transport.send(mimeMsg);
        transport.close();
    }

}

 

 

 

用户验证代码：

Email_Autherticatorbean.java：

package com.test;

import javax.mail.Authenticator;
import javax.mail.PasswordAuthentication;

public class Email_Autherticatorbean extends Authenticator {
    private String m_username = null;
    private String m_userpass = null;

    public void setUsername(String username) {
        m_username = username;
    }

    public void setUserpass(String userpass) {
        m_userpass = userpass;
    }

    public Email_Autherticatorbean(String username, String userpass) {
        super();
        setUsername(username);
        setUserpass(userpass);

    }

    public PasswordAuthentication getPasswordAuthentication() {

        return new PasswordAuthentication(m_username, m_userpass);
    }
}

 

 

把这两个类放在web project中运行SendMailTest.java 即可测试使用。

 

具体方法调用方式见SendMailTest.java  main方法。

 

 

 

测试邮箱：

[e-mail]  pwd:hello123    smtp:smtp.126.com
[e-mail]  pwd:hello123
[e-mail]    pwd:123456789   未开通smtp服务