Java邮件发送

需要导入的jar包：mail.jar和activation.jar

package mail;

import java.util.Properties;

import javax.mail.*;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;


public class MailUtilsQQ587 {

    // 收件人，邮件主题及邮件内容通过参数形式传递
    public static void sendMail(String emailAddr,String emailSub,String emailMsg) throws MessagingException {

        // 创建Properties 类用于记录邮箱的一些属性
        Properties props = new Properties();

        // SMTP发送邮件，必须进行身份验证
        props.put("mail.smtp.auth", "true");

        //SMTP服务器
        props.put("mail.smtp.host", "smtp.qq.com");

        //端口号，QQ邮箱给出了两个端口，587与465
        props.put("mail.smtp.port", 587);
        
        //如果使用465端口，必须开启ssl协议
        //props.put("mail.smtp.ssl.enable", "true");

        // qq邮箱账号
        props.put("mail.user", "**********@qq.com");

        // 16位qq邮箱授权码
        props.put("mail.password", "****************");


        // 构建授权信息，用于进行SMTP进行身份验证
        Authenticator authenticator = new Authenticator() {
            protected PasswordAuthentication getPasswordAuthentication() {
                String userName = props.getProperty("mail.user");
                String password = props.getProperty("mail.password");
                return new PasswordAuthentication(userName, password);
            }
        };

        // 使用环境属性和授权信息，创建邮件会话
        Session mailSession = Session.getInstance(props, authenticator);

        // 邮件消息
        MimeMessage message = new MimeMessage(mailSession);

        // 发件人邮箱
        InternetAddress form = new InternetAddress(props.getProperty("mail.user"));
        message.setFrom(form);

        // 收件人邮箱
        InternetAddress to = new InternetAddress(emailAddr);
        message.setRecipient(MimeMessage.RecipientType.TO, to);

        // 邮件标题
        message.setSubject(emailSub);

        // 邮件内容体
        message.setContent(emailMsg, "text/html;charset=UTF-8");

        // 发送邮件
        Transport.send(message);
    }
}