帮我写一个java 发送Exchange邮箱邮件demo

好的，以下是一个简单的 Java 发送 Exchange 邮箱邮件的示例代码：

import java.util.Properties;
import javax.mail.*;
import javax.mail.internet.*;

public class ExchangeMailSender {
    public static void main(String[] args) {
        final String username = "your_username";
        final String password = "your_password";
        final String recipientEmail = "recipient_email_address";
        final String subject = "Test Email";
        final String body = "This is a test email sent from Java.";

        Properties props = new Properties();
        props.put("mail.smtp.host", "your_exchange_server");
        props.put("mail.smtp.auth", "true");
        props.put("mail.smtp.starttls.enable", "true");
        props.put("mail.smtp.port", "587"); // Change to the appropriate port number

        Session session = Session.getInstance(props, new Authenticator() {
            protected PasswordAuthentication getPasswordAuthentication() {
                return new PasswordAuthentication(username, password);
            }
        });

        try {
            Message message = new MimeMessage(session);
            message.setFrom(new InternetAddress(username));
            message.setRecipients(Message.RecipientType.TO, InternetAddress.parse(recipientEmail));
            message.setSubject(subject);
            message.setText(body);
            Transport.send(message);
            System.out.println("Email sent successfully.");
        } catch (MessagingException e) {
            System.out.println("Failed to send email. Error message: " + e.getMessage());
        }
    }
}

请将代码中的以下信息替换为您自己的信息：

- `your_username`：您的 Exchange 邮箱用户名
- `your_password`：您的 Exchange 邮箱密码
- `recipient_email_address`：收件人的邮箱地址
- `your_exchange_server`：您的 Exchange 邮箱服务器域名或 IP 地址

请注意，此代码需要 JavaMail API 和 Exchange Web Services Java API。您需要将这些 API 添加到您的项目中才能运行此代码。