JSP - Sending Email
To
send an email using a JSP is simple enough but to start with you should have JavaMail API andJava Activation Framework (JAF) installed on your machine.
·
You can download latest version of JavaBeans Activation Framework JAF (Version 1.0.2) from
Java's standard website.
Download
and unzip these files, in the newly created top level directories you will find
a number of jar files for both the applications. You need to add mail.jar and activation.jar files in your CLASSPATH.
Send a
Simple Email:
Here
is an example to send a simple email from your machine. Here it is assumed that
your localhostis connected
to the internet and capable enough to send an email. Same time make sure all
the jar files from Java Email API package and JAF package ara available in
CLASSPATH.
<%@ page import="java.io.*,java.util.*,javax.mail.*"%>
<%@ page import="javax.mail.internet.*,javax.activation.*"%>
<%@ page import="javax.servlet.http.*,javax.servlet.*" %>
<%
String result;
// Recipient's email ID needs to be mentioned.
String to = "abcd@gmail.com";
// Sender's email ID needs to be mentioned
String from = "mcmohd@gmail.com";
// Assuming you are sending email from localhost
String host = "localhost";
// Get system properties object
Properties properties = System.getProperties();
// Setup mail server
properties.setProperty("mail.smtp.host", host);
// Get the default Session object.
Session mailSession = Session.getDefaultInstance(properties);
try{
// Create a default MimeMessage object.
MimeMessage message = new MimeMessage(mailSession);
// Set From: header field of the header.
message.setFrom(new InternetAddress(from));
// Set To: header field of the header.
message.addRecipient(Message.RecipientType.TO,
new InternetAddress(to));
// Set Subject: header field
message.setSubject("This is the Subject Line!");
// Now set the actual message
message.setText("This is actual message");
// Send message
Transport.send(message);
result = "Sent message successfully....";
}catch (MessagingException mex) {
mex.printStackTrace();
result = "Error: unable to send message....";
}
%>
<html>
<head>
<title>Send Email using JSP</title>
</head>
<body>
<center>
<h1>Send Email using JSP</h1>
</center>
<p align="center">
<%
out.println("Result: " + result + "\n");
%>
</p>
</body>
</html>
Now
let us put above code in SendEmail.jsp file and call this JSP using URL http://localhost:8080/SendEmail.jsp
which would send an email to given email ID abcd@gmail.comand
would display following response:
Send Email using JSP
Result: Sent message successfully....
|
If you want to send an email
to multiple recipients then following methods would be used to specify multiple
email IDs:
void addRecipients(Message.RecipientType type,
Address[] addresses)
throws MessagingException
Here is the description of
the parameters:
·
type: This would be set to TO, CC or BCC. Here CC represents Carbon Copy
and BCC represents Black Carbon Copy. Example Message.RecipientType.TO
·
addresses: This is the array of email ID. You would need to use
InternetAddress() method while specifying email IDs
Send an
HTML Email:
Here
is an example to send an HTML email from your machine. Here it is assumed that
your localhostis connected
to the internet and capable enough to send an email. Same time make sure all
the jar files from Java Email API package and JAF package ara available in CLASSPATH.
This example is very similar
to previous one, except here we are using setContent() method to set content
whose second argument is "text/html" to specify that the HTML content
is included in the message.
Using this example, you can
send as big as HTML content you like.
<%@ page import="java.io.*,java.util.*,javax.mail.*"%>
<%@ page import="javax.mail.internet.*,javax.activation.*"%>
<%@ page import="javax.servlet.http.*,javax.servlet.*" %>
<%
String result;
// Recipient's email ID needs to be mentioned.
String to = "abcd@gmail.com";
// Sender's email ID needs to be mentioned
String from = "mcmohd@gmail.com";
// Assuming you are sending email from localhost
String host = "localhost";
// Get system properties object
Properties properties = System.getProperties();
// Setup mail server
properties.setProperty("mail.smtp.host", host);
// Get the default Session object.
Session mailSession = Session.getDefaultInstance(properties);
try{
// Create a default MimeMessage object.
MimeMessage message = new MimeMessage(mailSession);
// Set From: header field of the header.
message.setFrom(new InternetAddress(from));
// Set To: header field of the header.
message.addRecipient(Message.RecipientType.TO,
new InternetAddress(to));
// Set Subject: header field
message.setSubject("This is the Subject Line!");
// Send the actual HTML message, as big as you like
message.setContent("<h1>This is actual message</h1>",
"text/html" );
// Send message
Transport.send(message);
result = "Sent message successfully....";
}catch (MessagingException mex) {
mex.printStackTrace();
result = "Error: unable to send message....";
}
%>
<html>
<head>
<title>Send HTML Email using JSP</title>
</head>
<body>
<center>
<h1>Send Email using JSP</h1>
</center>
<p align="center">
<%
out.println("Result: " + result + "\n");
%>
</p>
</body>
</html>
Now try to use above JSP to
send HTML message on a given email ID.
Send
Attachment in Email:
Here is an example to send an
email with attachment from your machine:
<%@ page import="java.io.*,java.util.*,javax.mail.*"%>
<%@ page import="javax.mail.internet.*,javax.activation.*"%>
<%@ page import="javax.servlet.http.*,javax.servlet.*" %>
<%
String result;
// Recipient's email ID needs to be mentioned.
String to = "abcd@gmail.com";
// Sender's email ID needs to be mentioned
String from = "mcmohd@gmail.com";
// Assuming you are sending email from localhost
String host = "localhost";
// Get system properties object
Properties properties = System.getProperties();
// Setup mail server
properties.setProperty("mail.smtp.host", host);
// Get the default Session object.
Session mailSession = Session.getDefaultInstance(properties);
try{
// Create a default MimeMessage object.
MimeMessage message = new MimeMessage(mailSession);
// Set From: header field of the header.
message.setFrom(new InternetAddress(from));
// Set To: header field of the header.
message.addRecipient(Message.RecipientType.TO,
new InternetAddress(to));
// Set Subject: header field
message.setSubject("This is the Subject Line!");
// Create the message part
BodyPart messageBodyPart = new MimeBodyPart();
// Fill the message
messageBodyPart.setText("This is message body");
// Create a multipar message
Multipart multipart = new MimeMultipart();
// Set text message part
multipart.addBodyPart(messageBodyPart);
// Part two is attachment
messageBodyPart = new MimeBodyPart();
String filename = "file.txt";
DataSource source = new FileDataSource(filename);
messageBodyPart.setDataHandler(new DataHandler(source));
messageBodyPart.setFileName(filename);
multipart.addBodyPart(messageBodyPart);
// Send the complete message parts
message.setContent(multipart );
// Send message
Transport.send(message);
String title = "Send Email";
result = "Sent message successfully....";
}catch (MessagingException mex) {
mex.printStackTrace();
result = "Error: unable to send message....";
}
%>
<html>
<head>
<title>Send Attachement Email using JSP</title>
</head>
<body>
<center>
<h1>Send Attachement Email using JSP</h1>
</center>
<p align="center">
<%
out.println("Result: " + result + "\n");
%>
</p>
</body>
</html>
Now try to run above JSP to
send a file as an attachement along with a message on a given email ID.
User
Authentication Part:
If it is required to provide
user ID and Password to the email server for authentication purpose then you
can set these properties as follows:
props.setProperty("mail.user", "myuser");
props.setProperty("mail.password", "mypwd");
Rest of the email sending
mechanism would remain as explained above.
Using
Forms to send email:
You
can use HTML form to accept email parameters and then you can use request object to get all the information as
follows:
String to = request.getParameter("to");
String from = request.getParameter("from");
String subject = request.getParameter("subject");
String messageText = request.getParameter("body");
Once you have all the
information, you can use above mentioned programs to send email.
