JSP Tutorial - JSP Send Email








To send an email using a JSP, install JavaMail API and Java Activation Framework (JAF) in CLASSPATH.

Send an Email

<%@ page import="java.io.*,java.util.*,javax.mail.*"%>
<%@ page import="javax.mail.internet.*,javax.activation.*"%>
<%@ page import="javax.servlet.http.*,javax.servlet.*" %>
<%
   String result;
   String to = "to@gmail.com";
   String from = "from@gmail.com";
   String host = "localhost";
   Properties properties = System.getProperties();
   properties.setProperty("mail.smtp.host", host);
   Session mailSession = Session.getDefaultInstance(properties);
   try{
      MimeMessage message = new MimeMessage(mailSession);
      message.setFrom(new InternetAddress(from));
      message.addRecipient(Message.RecipientType.TO,new InternetAddress(to));
      message.setSubject("This is the Subject Line!");
      message.setText("This is actual message");
      Transport.send(message);
      result = "Sent message successfully....";
   }catch (MessagingException mex) {
      mex.printStackTrace();
      result = "Error: unable to send message....";
   }
%>
<html>
<body>
<center>
</center>
<p align="center">
<% 
   out.println("Result: " + result + "\n");
%>
</p>
</body>
</html>

To send an email to multiple recipients, use the following method.

void addRecipients(Message.RecipientType type, Address[] addresses)
throws MessagingException




Send an HTML Email

Use the following function and parameter to send an HTML email out.

message.setContent("<h1>This is actual message</h1>","text/html" );

Full source code

<%@ page import="java.io.*,java.util.*,javax.mail.*"%>
<%@ page import="javax.mail.internet.*,javax.activation.*"%>
<%@ page import="javax.servlet.http.*,javax.servlet.*" %>
<%
   String result;
   String to = "to@gmail.com";
   String from = "from@gmail.com";
   String host = "localhost";
   Properties properties = System.getProperties();
   properties.setProperty("mail.smtp.host", host);
   Session mailSession = Session.getDefaultInstance(properties);
   try{
      MimeMessage message = new MimeMessage(mailSession);
      message.setFrom(new InternetAddress(from));
      message.addRecipient(Message.RecipientType.TO,new InternetAddress(to));
      message.setSubject("This is the Subject Line!");
      message.setContent("<h1>This is actual message</h1>","text/html" );
      Transport.send(message);
      result = "Sent message successfully....";
   }catch (MessagingException mex) {
      mex.printStackTrace();
      result = "Error: unable to send message....";
   }
%>
<html>
<body>
<p align="center">
<% 
   out.println("Result: " + result + "\n");
%>
</p>
</body>
</html>




Send Email with Attachment

<%@ page import="java.io.*,java.util.*,javax.mail.*"%>
<%@ page import="javax.mail.internet.*,javax.activation.*"%>
<%@ page import="javax.servlet.http.*,javax.servlet.*" %>
<%
   String result;
   String to = "to@gmail.com";
   String from = "from@gmail.com";
   String host = "localhost";
   Properties properties = System.getProperties();
   properties.setProperty("mail.smtp.host", host);
   Session mailSession = Session.getDefaultInstance(properties);
   try{
      MimeMessage message = new MimeMessage(mailSession);
      message.setFrom(new InternetAddress(from));
      message.addRecipient(Message.RecipientType.TO,new InternetAddress(to));
      message.setSubject("This is the Subject Line!");
      BodyPart messageBodyPart = new MimeBodyPart();
      messageBodyPart.setText("This is message body");
      Multipart multipart = new MimeMultipart();
      multipart.addBodyPart(messageBodyPart);
      messageBodyPart = new MimeBodyPart();
      String filename = "file.txt";
      DataSource source = new FileDataSource(filename);
      messageBodyPart.setDataHandler(new DataHandler(source));
      messageBodyPart.setFileName(filename);
      multipart.addBodyPart(messageBodyPart);
      message.setContent(multipart );
      Transport.send(message);
      String title = "Send Email";
      result = "Sent message successfully....";
   }catch (MessagingException mex) {
      mex.printStackTrace();
      result = "Error: unable to send message....";
   }
%>
<html>
<body>
<% 
   out.println("Result: " + result + "\n");
%>
</body>
</html>

User Authentication

To provide user ID and Password to the email server, set the user name and password in properties as follows:

props.setProperty("mail.user", "myuser");
props.setProperty("mail.password", "mypwd");