java Stirng[]无法转换为字符串

Question

我不能纠正我的错误。我想要一个向多人发送电子邮件的程序。这是我目前的代码

public static void sendEmailWithAttachments(String host, String port,
            final String userName, final String password, String[] toAddress,
            String subject, String message, String[] attachFiles)
            throws AddressException, MessagingException {
        // sets SMTP server properties
        Properties properties = new Properties();
        properties.put("mail.smtp.host", host);
        properties.put("mail.smtp.port", port);
        properties.put("mail.smtp.auth", "true");
        properties.put("mail.smtp.starttls.enable", "true");
        properties.put("mail.user", userName);
        properties.put("mail.password", password);

        // creates a new session with an authenticator
        Authenticator auth = new Authenticator() {
            public PasswordAuthentication getPasswordAuthentication() {
                return new PasswordAuthentication(userName, password);
            }
        };
        Session session = Session.getInstance(properties, auth);

        // creates a new e-mail message
        Message msg = new MimeMessage(session);

        msg.setFrom(new InternetAddress(userName));
        InternetAddress[] toAddresses = { new InternetAddress(toAddress) };
        msg.setRecipients(Message.RecipientType.TO, toAddresses);
        msg.setSubject(subject);
        msg.setSentDate(new Date());

在{new Internet Address(toAddress)}中的toAddress表示String[]不能转换为String

InternetAddress[] toAddresses = { new InternetAddress(toAddress) };

提前感谢您的帮助：）

Answer 1

只需迭代toAddress，将每个字符串包装在InternetAddress中，并将其放入toAddress中

InternetAddress[] toAddresses = new InternetAddress[toAddress.length];

for(int i = 0; i < toAddresses; i++) {
   toAddresses[i] = new InternetAddress(toAddress[i]);
}

Answer 2

尝试先创建internet地址数组，然后分配一个值：

InternetAddress[] toAddresses = new InternetAddress[1];
toAddresses[0] = new InternetAddress(toAddress);
msg.setRecipients(Message.RecipientType.TO, toAddresses);