是否将javax.mail.internet.mimemessage发送给非ASCII名称的收件人?

呃,用一个愚蠢的黑客得到的:

/**
 * Parses addresses and re-encodes them in a way that won't cause {@link MimeMessage}
 * to freak out. This appears to be the only robust way of sending mail to recipients
 * with non-ASCII names. 
 * 
 * @param addresses  The usual comma-delimited list of email addresses.
 */
InternetAddress[] unicodifyAddresses(String addresses) throws AddressException {
    InternetAddress[] recips = InternetAddress.parse(addresses, false);
    for(int i=0; i<recips.length; i++) {
        try {
            recips[i] = new InternetAddress(recips[i].getAddress(), recips[i].getPersonal(), "utf-8");
        } catch(UnsupportedEncodingException uee) {
            throw new RuntimeException("utf-8 not valid encoding?", uee);
        }
    }
    return recips;
}

我希望这对某人有用。

我知道这是旧的,但这可能会帮助别人。我不明白那个解决方案/黑客是如何解决这个问题的。

这里的这一行将设置recips[0]的地址:

InternetAddress[] recips = InternetAddress.parse(addresses, false);

这里的构造函数不会更改任何内容,因为编码应用于个人名称(在本例中为空)而不是地址。

new InternetAddress(recips[i].getAddress(), recips[i].getPersonal(), "utf-8");

但是,如果邮件服务器能够处理编码的收件人,下面这样的内容就可以工作了!(这似乎还不常见……)

recip = MimeUtility.encodeText(recip, "utf-8", "B");
InternetAddress[] addressArray = InternetAddress.parse(recip , false);
msg.addRecipients(MimeMessage.RecipientType.TO, addressArray);