向多个收件人发送电子邮件

Question

I am trying to send emails to N number of people. I have passed the email id of gmail to a value called toAddresses, since I need to separate those string elements with comma (,)

I used this technique

String[] contactList=request.getParameterValues("mail_contacts");

InternetAddress[] toAddress = new InternetAddress[contactList.length]; 
for (int i = 0; i < contactList.length; i++) {
    toAddress[i] = new InternetAddress(contactList[i]+",");
    out.println("<p>"+toAddress[i]+"</p><p>"+toAddress[i].toString()+"</p>");
}
msg.setRecipients(Message.RecipientType.TO, toAddress);

But I am getting an error from the console which says "Missing required header 'To'"

Kindly help me resolve this error

Answer 1

I am not sure but in your code toAddress is an array of InetAdresses and when you are setting the contact list you are putting:

msg.setRecipients(Message.RecipientType.TO, toAddress);

I believe toAddress Should be toAddress[position of array] I'm not entirely sure try doing:

String[] contactList=request.getParameterValues("mail_contacts");

InternetAddress[] toAddress = new InternetAddress[contactList.length]; 
for (int i = 0; i < contactList.length; i++) {
    toAddress[i] = new InternetAddress(contactList[i]+",");
    out.println("<p>"+toAddress[i]+"</p><p>"+toAddress[i].toString()+"</p>");
    msg.setRecipients(Message.RecipientType.TO, toAddress[i]);
}