Java 发送邮件工具类

时间：2022-08-08 14:37:52

1.  Mail.java

package util;

import java.util.Date;

import java.util.Properties;

import javax.mail.Authenticator;

import javax.mail.BodyPart;

import javax.mail.Message;

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;

public class Mail {

    private static MimeMessage message;

    static {

        try {

            Properties properties = new Properties();

            properties.load(Mail.class.getResourceAsStream("/Mail.properties"));

            // 发件人邮箱用户名

            final String userName = properties.getProperty("username");

            final String password = AESCodec.decrypt(properties.getProperty("password"));

            Session session = Session.getDefaultInstance(properties, new Authenticator() {

                public PasswordAuthentication getPasswordAuthentication() {

                    // 发件人邮件用户名、密码

                    return new PasswordAuthentication(userName, password);

                }

            });

            message = new MimeMessage(session);

            message.setFrom(new InternetAddress(userName));

            // 设置邮件消息发送的时间

            message.setSentDate(new Date());

        } catch (Exception e) {

            e.printStackTrace();

        }

    }

    /**

     * 发送纯文本格式邮件

     *

     * @param recipient 收件人

     * @param subject 主题

     * @param text 邮件文本内容

     * @return 邮件是否发送成功

     */

    public static boolean sendTextEmail(String recipient, String subject, String text) {

        try {

            // Set To: 头部头字段

            message.addRecipient(Message.RecipientType.TO, new InternetAddress(recipient));

            // Set Subject: 头部头字段

            message.setSubject(subject);

            // 设置消息体

            message.setText(text);

            // 发送消息

            Transport.send(message);

            System.out.println("Sent message successfully....");

            return true;

        } catch (Exception e) {

            e.printStackTrace();

            System.out.println("Sent message failed....");

            return false;

        }

    }

    /**

     * 发送HTML格式邮件

     *

     * @param recipient 收件人

     * @param subject 主题

     * @param html 邮件内容HTML格式

     * @return 邮寄是否发送成功

     */

    public static boolean sendHtmlEmail(String recipient, String subject, String html) {

        try {

            // Set To: 头部头字段

            message.addRecipient(Message.RecipientType.TO, new InternetAddress(recipient));

            // Set Subject: 头部头字段

            message.setSubject(subject);

            // 创建消息部分

            BodyPart body = new MimeBodyPart();

            // 设置消息

            body.setContent(html, "text/html; charset=utf-8");

            // 创建多重消息

            Multipart multipart = new MimeMultipart();

            multipart.addBodyPart(body);

            // 将MiniMultipart对象设置为邮件内容

            message.setContent(multipart);

            // 发送消息

            Transport.send(message);

            System.out.println("Sent message successfully....");

            return true;

        } catch (Exception e) {

            e.printStackTrace();

            System.out.println("Sent message failed....");

            return false;

        }

    }

    public static void main(String[] args) {

        testHtml();

    }

    /**

     * 测试发送HTML格式邮件

     */

    public static void testHtml() {

        // 收件人邮箱

        String recipient = "hnfch@qq.com";

        String subject = "生日快乐！";

        StringBuffer content = new StringBuffer();

        content.append("<html>");

        content.append("<body>");

        content.append("<h1>");

        content.append("祝你生日快乐！");

        content.append("</h1>");

        content.append("<img src='http://d.hiphotos.baidu.com/zhidao/wh%3D600%2C800/sign=324d313a233fb80e0c8469d106e10316/21a4462309f79052ab867a350ef3d7ca7bcbd51b.jpg' />");

        content.append("</body>");

        content.append("</html>");

        System.out.println(sendHtmlEmail(recipient, subject, content.toString()));

    }

}

2.   Mail.properties

#QQ

#mail.smtp.host=smtp.qq.com

#mail.smtp.auth=true

#username=

#password=

#126

#mail.smtp.host=smtp.126.com

#mail.smtp.port=25

#mail.smtp.auth=true

#username=

#password=

#163

mail.smtp.host=smtp.163.com

mail.smtp.port=25

mail.smtp.auth=true

username=k33666@126.com

password=AES加密后的密码

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