import java.util.Properties;import javax.mail.*;import javax.mail.internet.*;public class MailSender {public static void main(String[] args) {// 邮箱用户名和密码final String username = "your_email_username@";final String password = "your_email_password";// 邮箱配置信息Properties props = new Properties();props.put("mail.smtp.host", "smtp."); // 邮箱服务器地址props.put("mail.smtp.port", "465"); // 邮箱服务器端口号props.put("mail.smtp.auth", "true"); // 启用身份验证props.put("mail.smtp.ssl.enable", "true"); // 启用 SSL 加密// 创建 Session 对象，用于与邮箱服务器进行通信Session session = Session.getInstance(props, new javax.mail.Authenticator() {protected PasswordAuthentication getPasswordAuthentication() {return new PasswordAuthentication(username, password);}});try {// 创建邮件对象Message message = new MimeMessage(session);message.setFrom(new InternetAddress("your_email_username@")); // 设置发件人邮箱地址message.setRecipients(Message.RecipientType.TO, InternetAddress.parse("recipient@")); // 设置收件人邮箱地址message.setSubject("Testing Subject"); // 设置邮件主题message.setText("Dear Mail Crawler," + "\n\n No spam to my email, please!"); // 设置邮件内容// 发送邮件Transport.send(message);System.out.println("Done");} catch (MessagingException e) {throw new RuntimeException(e);}}}
上述代码中，依赖以下 jar 包：
- javax.mail.jar：JavaMail 库，用于发送邮件
- activation.jar：JavaBeans Activation Framework 库，用于处理 MIME 数据类型
这两个 jar 包可以在 Maven 仓库中下载，也可以从以下链接下载：
- javax.mail.jar：/artifact/javax.mail/mail/1.4.7
- activation.jar：/artifact/javax.activation/activation/1.1.1
你可以将这两个 jar 包下载后添加到项目的 classpath 中即可使用
- javax.mail.jar：/maven2/com/sun/mail/javax.mail/1.6.2/javax.mail-1.6.2.jar
- activation.jar：/maven2/javax/activation/activation/1.1.1/activation-1.1.1.jar
