java消息通知实现代码

以下是基于Java实现消息通知的示例代码：

1. 消息类定义

public class Message {
    private String title;
    private String content;
    private Date time;

    // 省略getter和setter方法
}

2. 消息通知接口定义

public interface Notification {
    void send(Message message);
}

3. 邮件通知实现类

public class EmailNotification implements Notification {
    private String smtpHost;
    private String username;
    private String password;

    public EmailNotification(String smtpHost, String username, String password) {
        this.smtpHost = smtpHost;
        this.username = username;
        this.password = password;
    }

    public void send(Message message) {
        // 使用JavaMail发送邮件
        Properties props = new Properties();
        props.put("mail.smtp.host", smtpHost);
        props.put("mail.smtp.auth", "true");
        Authenticator authenticator = new Authenticator() {
            protected PasswordAuthentication getPasswordAuthentication() {
                return new PasswordAuthentication(username, password);
            }
        };
        Session session = Session.getInstance(props, authenticator);
        try {
            MimeMessage mimeMessage = new MimeMessage(session);
            mimeMessage.setFrom(new InternetAddress(username));
            mimeMessage.setRecipient(Message.RecipientType.TO,
                    new InternetAddress("recipient@example.com"));
            mimeMessage.setSubject(message.getTitle());
            mimeMessage.setText(message.getContent());
            Transport.send(mimeMessage);
        } catch (MessagingException e) {
            e.printStackTrace();
        }
    }
}

4. 短信通知实现类

public class SmsNotification implements Notification {
    private String apiKey;
    private String apiSecret;

    public SmsNotification(String apiKey, String apiSecret) {
        this.apiKey = apiKey;
        this.apiSecret = apiSecret;
    }

    public void send(Message message) {
        // 使用第三方短信服务发送短信
        MessageClient client = new MessageClient(apiKey, apiSecret);
        MessageResponse response = client.send("recipient_phone_number", message.getContent());
        if (response.getStatusCode() == 200) {
            System.out.println("短信发送成功");
        } else {
            System.out.println("短信发送失败");
        }
    }
}

以上是邮件通知和短信通知的实现示例，可以根据自己的需求和场景进行适当修改。在实际应用中，可以根据需要使用不同的通知方式，例如系统通知、推送通知等。