Programming Tutorials

(追記) (追記ここまで)

Sending Email using JSP

By: Vijay in JSP Tutorials on 2023年05月05日 [フレーム]

To send an email using JSP, you can use the JavaMail API. Here is an example of how to send an email in JSP:

First, you need to download the JavaMail API jar file and place it in your project's classpath.

Import the required classes at the beginning of your JSP page:

<%@ page import="javax.mail.*, javax.mail.internet.*, java.util.*" %>

Create a JavaMail session by specifying the SMTP server and port number. You also need to provide the authentication details (username and password) for the SMTP server:

<%
 String host = "smtp.gmail.com";
 String username = "your-email-address";
 String password = "your-email-password";
 String port = "587";
 Properties props = new Properties();
 props.put("mail.smtp.auth", "true");
 props.put("mail.smtp.starttls.enable", "true");
 props.put("mail.smtp.host", host);
 props.put("mail.smtp.port", port);
 // create a mail session with the given properties
 Session session = Session.getInstance(props, new Authenticator() {
 protected PasswordAuthentication getPasswordAuthentication() {
 return new PasswordAuthentication(username, password);
 }
 });
%>

Create a new message and set its properties, such as the sender's and recipient's email addresses, subject, and content:

<%
 String from = "your-email-address";
 String to = "recipient-email-address";
 String subject = "Email Subject";
 String body = "Email Body";
 // create a new message
 Message message = new MimeMessage(session);
 message.setFrom(new InternetAddress(from));
 message.setRecipient(Message.RecipientType.TO, new InternetAddress(to));
 message.setSubject(subject);
 message.setText(body);
%>

Send the message using the Transport.send() method:

<%
 // send the message
 Transport.send(message);
%>

The complete code for sending an email using JSP is as follows:

<%@ page import="javax.mail.*, javax.mail.internet.*, java.util.*" %>
<%
 String host = "smtp.gmail.com";
 String username = "your-email-address";
 String password = "your-email-password";
 String port = "587";
 Properties props = new Properties();
 props.put("mail.smtp.auth", "true");
 props.put("mail.smtp.starttls.enable", "true");
 props.put("mail.smtp.host", host);
 props.put("mail.smtp.port", port);
 // create a mail session with the given properties
 Session session = Session.getInstance(props, new Authenticator() {
 protected PasswordAuthentication getPasswordAuthentication() {
 return new PasswordAuthentication(username, password);
 }
 });
 String from = "your-email-address";
 String to = "recipient-email-address";
 String subject = "Email Subject";
 String body = "Email Body";
 // create a new message
 Message message = new MimeMessage(session);
 message.setFrom(new InternetAddress(from));
 message.setRecipient(Message.RecipientType.TO, new InternetAddress(to));
 message.setSubject(subject);
 message.setText(body);
 // send the message
 Transport.send(message);
%>
<h1>Email Sent</h1>

Note: This example uses Gmail as the SMTP server, but you can use any other SMTP server by modifying the "host" and "port" properties accordingly.

Previous
<< Encrypting Passwords in Tomcat using Servlets

Next
Show a calendar for user input in JSP>>

(追記) (追記ここまで)