how to send HTML email - html

Question

I have to send HTML file via email but not as attachment.
Message simpleMessage = new MimeMessage(mailSession);
try {
fromAddress = new InternetAddress(from);
toAddress = new InternetAddress(to);
} catch (AddressException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
try {
simpleMessage.setFrom(fromAddress);
simpleMessage.setRecipient(RecipientType.TO, toAddress);
simpleMessage.setSubject(subject);
simpleMessage.setText(text);
Transport.send(simpleMessage);
} catch (MessagingException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
It is sending email simply with text message.
I want to send HTML content which is stored in another file but not as attachment

Answer 1

Don't upcast your MimeMessage to Message:
MimeMessage simpleMessage = new MimeMessage(mailSession);
Then, when you want to set the message body, either call
simpleMessage.setText(text, "utf-8", "html");
or call
simpleMessage.setContent(text, "text/html; charset=utf-8");
If you'd rather use a charset other than utf-8, substitute it in the appropriate place.
JavaMail has an extra, useless layer of abstraction that often leaves you holding classes like Multipart, Message, and Address, which all have much less functionality than the real subclasses (MimeMultipart, MimeMessage, and InternetAddress) that are actually getting constructed...

Answer 2

Here is my sendEmail java program. It's good to use setContent method of Message class object.
message.setSubject(message_sub);
message.setContent(message_text, "text/html; charset=utf-8");
sendEmail.java
package employee;
import javax.mail.*;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
import java.io.UnsupportedEncodingException;
import java.util.Properties;
public class SendEmail {
public static void sendEmail(String message_text, String send_to,String message_sub ) throws UnsupportedEncodingException {
final String username = "hello#xyz.com";
final String password = "password";
Properties prop = new Properties();
prop.put("mail.smtp.host", "us2.smtp.mailhostbox.com"); //replace your host address.
prop.put("mail.smtp.port", "587");
prop.put("mail.smtp.auth", "true");
prop.put("mail.smtp.starttls.enable", "true"); //TLS
Session session = Session.getInstance(prop,
new javax.mail.Authenticator() {
protected PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(username, password);
}
});
try {
Message message = new MimeMessage(session);
message.setFrom(new InternetAddress("sender#xyz.com", "Name from which mail has to be sent"));
message.setRecipients(
Message.RecipientType.TO,
InternetAddress.parse(send_to)
);
message.setSubject(message_sub);
message.setContent(message_text, "text/html; charset=utf-8");
Transport.send(message);
System.out.println("Done");
} catch (MessagingException e) {
e.printStackTrace();
}
}
}