[Java] Java 发送邮件，

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import java.security.GeneralSecurityException;

import java.util.Properties;

import javax.mail.Authenticator;

import javax.mail.Message;

import javax.mail.MessagingException;

import javax.mail.PasswordAuthentication;

import javax.mail.Session;

import javax.mail.Transport;

import javax.mail.internet.InternetAddress;

import javax.mail.internet.MimeMessage;

import com.sun.mail.util.MailSSLSocketFactory;

public class SendEmail

{

    public static void main(String [] args) throws GeneralSecurityException

    {

        // 收件人电子邮箱

        String to = "XXXXX@qq.com";

        // 发件人电子邮箱

        String from = "XXXXXX@qq.com";

        // 指定发送邮件的主机为 smtp.qq.com

        String host = "smtp.qq.com";  //QQ 邮件服务器

        // 获取系统属性

        Properties properties = System.getProperties();

        // 设置邮件服务器

        properties.setProperty("mail.smtp.host", host);

        properties.put("mail.smtp.auth", "true");

        MailSSLSocketFactory sf = new MailSSLSocketFactory();

        sf.setTrustAllHosts(true);

        properties.put("mail.smtp.ssl.enable", "true");

        properties.put("mail.smtp.ssl.socketFactory", sf);

        // 获取默认session对象

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

            public PasswordAuthentication getPasswordAuthentication()

            {

                return new PasswordAuthentication("404608626@qq.com", "授权的 QQ 邮箱密码"); //发件人邮件用户名、密码

            }

        });

        try{

            // 创建默认的 MimeMessage 对象

            MimeMessage message = new MimeMessage(session);

            // Set From: 头部头字段

            message.setFrom(new InternetAddress(from));

            // Set To: 头部头字段

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

            // Set Subject: 头部头字段

            message.setSubject("This is the Subject Line!");

            // 设置消息体

            message.setText("This is actual message");

            // 发送消息

            Transport.send(message);

            System.out.println("Sent message successfully....from 52pojie.cn");

        }catch (MessagingException mex) {

            mex.printStackTrace();

        }

    }

}

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// 关于QQ邮箱，还要设置SSL加密，加上以下代码即可 上述代码以加上 如不是qq邮箱 可省略一下代码

MailSSLSocketFactory sf = new MailSSLSocketFactory();

sf.setTrustAllHosts(true);

props.put("mail.smtp.ssl.enable", "true");

props.put("mail.smtp.ssl.socketFactory", sf);