Spring Send Email – JavaMailSender Example

Learn to send emails using Spring framework provided JavaMailSender interface. Here is a step by step example for sending email via gmail smtp server, using Spring’s org.springframework.mail.javamail.JavaMailSender interface.

We will use javax.mail dependency to send emails while configuring mail properties in JavaMailSenderImpl class which implements JavaMailSender interface.

Read More: Send Email using Gmail SMTP Server (javax.email)

Step 1) Create java project with dependencies

Follow maven project creation example for creating a project. Now update following dependencies.

<repositories>
	<repository>
		<id>JBoss repository</id>
		<url>http://repository.jboss.org/nexus/content/groups/public/</url>
	</repository>
</repositories>

<properties>
	<org.springframework.version>3.0.5.RELEASE</org.springframework.version>
</properties>
  
<dependency>
  <groupId>org.springframework</groupId>
  <artifactId>spring-core</artifactId>
  <version>${org.springframework.version}</version>
</dependency>

<dependency>
  <groupId>org.springframework</groupId>
  <artifactId>spring-beans</artifactId>
  <version>${org.springframework.version}</version>
</dependency>

<dependency>
  <groupId>org.springframework</groupId>
  <artifactId>spring-context</artifactId>
  <version>${org.springframework.version}</version>
</dependency>

<dependency>
	<groupId>javax.mail</groupId>
	<artifactId>mail</artifactId>
	<version>1.4</version>
</dependency>

Step 2) Configure JavaMailSender

In Spring context file, create a generic mail sender service which is capable of sending http messages using gmail’s smtp server.

Also, I am making a pre-configured message which can be instantiated on the fly and use for sending the message.

<beans>

    <context:component-scan base-package="com.howtodoinjava" />    
    
    <!-- SET default mail properties -->
	<bean id="mailSender" class="org.springframework.mail.javamail.JavaMailSenderImpl">
	  	<property name="host" value="smtp.gmail.com"/>
	  	<property name="port" value="25"/>
	  	<property name="username" value="admin@gmail.com"/>
	 	<property name="password" value="password"/>
	  	<property name="javaMailProperties">
			<props>
			    <prop key="mail.transport.protocol">smtp</prop>
			    <prop key="mail.smtp.auth">true</prop>
			    <prop key="mail.smtp.starttls.enable">true</prop>
			    <prop key="mail.debug">true</prop>
			</props>
  		</property>
    </bean>
    
	<!-- You can have some pre-configured messagess also which are ready to send -->
    <bean id="preConfiguredMessage" class="org.springframework.mail.SimpleMailMessage">
		<property name="to" value="somebody@gmail.com"></property>
		<property name="from" value="admin@gmail.com"></property>
  		<property name="subject" value="FATAL - Application crash. Save your job !!"/>
    </bean>
</beans>

Step 3) Create mail sender service

This class uses the beans configured in applicationContext.xml file and use them to send messages.

package com.howtodoinjava.mail;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.mail.MailSender;
import org.springframework.mail.SimpleMailMessage;
import org.springframework.stereotype.Service;

@Service("mailService")
public class ApplicationMailer 
{
	@Autowired
	private MailSender mailSender;
	
	@Autowired
	private SimpleMailMessage preConfiguredMessage;

	/**
	 * This method will send compose and send the message 
	 * */
	public void sendMail(String to, String subject, String body) 
	{
		SimpleMailMessage message = new SimpleMailMessage();
		message.setTo(to);
		message.setSubject(subject);
		message.setText(body);
		mailSender.send(message);
	}

	/**
	 * This method will send a pre-configured message
	 * */
	public void sendPreConfiguredMail(String message) 
	{
		SimpleMailMessage mailMessage = new SimpleMailMessage(preConfiguredMessage);
		mailMessage.setText(message);
		mailSender.send(mailMessage);
	}
}

Step 4) Test send email program

Time to test the code. I am sending two messages from test code. One is instantiated and composed in test class itself, and another one is pre-configured message from applicationContext.xml file.

package com.howtodoinjava.mail;

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.FileSystemXmlApplicationContext;

public class MailerTest {

	public static void main(String[] args) 
	{
		//Create the application context
		ApplicationContext context = new FileSystemXmlApplicationContext("applicationContext.xml");
		
		//Get the mailer instance
		ApplicationMailer mailer = (ApplicationMailer) context.getBean("mailService");

		//Send a composed mail
		mailer.sendMail("somebody@gmail.com", "Test Subject", "Testing body");

		//Send a pre-configured mail
		mailer.sendPreConfiguredMail("Exception occurred everywhere.. where are you ????");
	}
}

Carefully watch the logs in the console.

DEBUG: JavaMail version 1.4.7
DEBUG: URL jar:file:/D:/Latest%20Setup/eclipse_juno_workspace/SpringAutoWireExample/lib/smtp.jar!/META-INF/javamail.providers
DEBUG: successfully loaded resource: jar:file:/D:/Latest%20Setup/eclipse_juno_workspace/SpringAutoWireExample/lib/smtp.jar!/META-INF/javamail.providers
DEBUG: Tables of loaded providers
DEBUG: Providers Listed By Class Name: {com.sun.mail.smtp.SMTPSSLTransport=javax.mail.Provider[TRANSPORT,smtps,com.sun.mail.smtp.SMTPSSLTransport,Oracle], com.sun.mail.smtp.SMTPTransport=javax.mail.Provider[TRANSPORT,smtp,com.sun.mail.smtp.SMTPTransport,Oracle]}
DEBUG: Providers Listed By Protocol: {smtps=javax.mail.Provider[TRANSPORT,smtps,com.sun.mail.smtp.SMTPSSLTransport,Oracle], smtp=javax.mail.Provider[TRANSPORT,smtp,com.sun.mail.smtp.SMTPTransport,Oracle]}
DEBUG: URL jar:file:/D:/Latest%20Setup/eclipse_juno_workspace/SpringAutoWireExample/lib/smtp.jar!/META-INF/javamail.address.map
DEBUG: successfully loaded resource: jar:file:/D:/Latest%20Setup/eclipse_juno_workspace/SpringAutoWireExample/lib/smtp.jar!/META-INF/javamail.address.map
DEBUG: getProvider() returning javax.mail.Provider[TRANSPORT,smtp,com.sun.mail.smtp.SMTPTransport,Oracle]
DEBUG SMTP: useEhlo true, useAuth true
DEBUG SMTP: trying to connect to host "smtp.gmail.com", port 25, isSSL false
220 mx.google.com ESMTP cc15sm31085096pac.1 - gsmtp
DEBUG SMTP: connected to host "smtp.gmail.com", port: 25

EHLO 192.168.2.6
250-mx.google.com at your service, [14.102.109.172]
250-SIZE 35882577
250-8BITMIME
250-STARTTLS
250-ENHANCEDSTATUSCODES
250 PIPELINING
DEBUG SMTP: Found extension "SIZE", arg "35882577"
DEBUG SMTP: Found extension "8BITMIME", arg ""
DEBUG SMTP: Found extension "STARTTLS", arg ""
DEBUG SMTP: Found extension "ENHANCEDSTATUSCODES", arg ""
DEBUG SMTP: Found extension "PIPELINING", arg ""
STARTTLS
220 2.0.0 Ready to start TLS
EHLO 192.168.2.6
250-mx.google.com at your service, [14.102.109.172]
250-SIZE 35882577
250-8BITMIME
250-AUTH LOGIN PLAIN XOAUTH XOAUTH2
250-ENHANCEDSTATUSCODES
250 PIPELINING
DEBUG SMTP: Found extension "SIZE", arg "35882577"
DEBUG SMTP: Found extension "8BITMIME", arg ""
DEBUG SMTP: Found extension "AUTH", arg "LOGIN PLAIN XOAUTH XOAUTH2"
DEBUG SMTP: Found extension "ENHANCEDSTATUSCODES", arg ""
DEBUG SMTP: Found extension "PIPELINING", arg ""
DEBUG SMTP: Attempt to authenticate using mechanisms: LOGIN PLAIN DIGEST-MD5 NTLM 
DEBUG SMTP: AUTH LOGIN command trace suppressed
DEBUG SMTP: AUTH LOGIN succeeded
DEBUG SMTP: use8bit false
MAIL FROM:<user@user-PC>
250 2.1.0 OK cc15sm31085096pac.1 - gsmtp
RCPT TO:<somebody@gmail.com>
250 2.1.5 OK cc15sm31085096pac.1 - gsmtp
DEBUG SMTP: Verified Addresses
DEBUG SMTP:   somebody@gmail.com
DATA
354  Go ahead cc15sm31085096pac.1 - gsmtp
Date: Mon, 27 May 2013 21:06:28 +0530 (IST)
To: somebody@gmail.com
Message-ID: <7224872.0.1369668988268.JavaMail.user@user-PC>
Subject: Test Subject
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit

Testing body
.
250 2.0.0 OK 1369668992 cc15sm31085096pac.1 - gsmtp
QUIT
221 2.0.0 closing connection cc15sm31085096pac.1 - gsmtp
DEBUG: getProvider() returning javax.mail.Provider[TRANSPORT,smtp,com.sun.mail.smtp.SMTPTransport,Oracle]
DEBUG SMTP: useEhlo true, useAuth true
DEBUG SMTP: trying to connect to host "smtp.gmail.com", port 25, isSSL false
220 mx.google.com ESMTP qp4sm28954590pbc.41 - gsmtp
DEBUG SMTP: connected to host "smtp.gmail.com", port: 25

EHLO 192.168.2.6
250-mx.google.com at your service, [14.102.109.172]
250-SIZE 35882577
250-8BITMIME
250-STARTTLS
250-ENHANCEDSTATUSCODES
250 PIPELINING
DEBUG SMTP: Found extension "SIZE", arg "35882577"
DEBUG SMTP: Found extension "8BITMIME", arg ""
DEBUG SMTP: Found extension "STARTTLS", arg ""
DEBUG SMTP: Found extension "ENHANCEDSTATUSCODES", arg ""
DEBUG SMTP: Found extension "PIPELINING", arg ""
STARTTLS
220 2.0.0 Ready to start TLS
EHLO 192.168.2.6
250-mx.google.com at your service, [14.102.109.172]
250-SIZE 35882577
250-8BITMIME
250-AUTH LOGIN PLAIN XOAUTH XOAUTH2
250-ENHANCEDSTATUSCODES
250 PIPELINING
DEBUG SMTP: Found extension "SIZE", arg "35882577"
DEBUG SMTP: Found extension "8BITMIME", arg ""
DEBUG SMTP: Found extension "AUTH", arg "LOGIN PLAIN XOAUTH XOAUTH2"
DEBUG SMTP: Found extension "ENHANCEDSTATUSCODES", arg ""
DEBUG SMTP: Found extension "PIPELINING", arg ""
DEBUG SMTP: Attempt to authenticate using mechanisms: LOGIN PLAIN DIGEST-MD5 NTLM 
DEBUG SMTP: AUTH LOGIN command trace suppressed
DEBUG SMTP: AUTH LOGIN succeeded
DEBUG SMTP: use8bit false
MAIL FROM:<admin@gmail.com>
250 2.1.0 OK qp4sm28954590pbc.41 - gsmtp
RCPT TO:<admin@gmail.com>
250 2.1.5 OK qp4sm28954590pbc.41 - gsmtp
DEBUG SMTP: Verified Addresses
DEBUG SMTP:   admin@gmail.com
DATA
354  Go ahead qp4sm28954590pbc.41 - gsmtp
Date: Mon, 27 May 2013 21:06:41 +0530 (IST)
From: admin@gmail.com
To: admin@gmail.com
Message-ID: <32482448.1.1369669001408.JavaMail.user@user-PC>
Subject: FATAL - Application crash. Save your job !!
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit

Exception occurred everywhere.. where are you ????
.
250 2.0.0 OK 1369669005 qp4sm28954590pbc.41 - gsmtp
QUIT
221 2.0.0 closing connection qp4sm28954590pbc.41 - gsmtp

Happy Learning !!