Java Mail API

• The Spring framework offers a variety of helpful interfaces and classes that facilitate the sending and receiving of emails.

The Spring framework provides interfaces and classes for Java mail support as follows:

• MailSender interface: It is the root interface. It provides basic functionality for sending simple emails.
• JavaMailSender interface: It is the sub-interface of MailSender. It supports MIME messages.
• JavaMailSenderImpl class: It provides the implementation of the JavaMailSender interface. It supports JavaMail MimeMessages and Spring SimpleMailMessages.
• SimpleMailMessage class: It is used to create a simple mail message including from, to, cc, subject and text messages.
• MimeMessagePreparator interface: It is the callback interface for preparing JavaMail MIME messages.
• MimeMessageHelper class: It is the helper class for creating a MIME message. It supports inline elements such as images, typical mail attachments and HTML text content.

Following files for sending email through Spring framework.

1. MailMail.java
2. applicationContext.xml
3. Test.java

Example: Mail.class

package com.mail.quipoin;

import org.springframework.mail.MailSender;
import org.springframework.mail.SimpleMailMessage;

public class Mail {

	private MailSender mailSender;

	public void setMailSender(MailSender mailSender) {
		this.mailSender=mailSender;
	}
	public void sendMail(String from,String to,String subject,String msg) {
		SimpleMailMessage message=new SimpleMailMessage();
		message.setFrom(from);
		message.setTo(to);
		message.setSubject(subject);
		message.setText(msg);

		mailSender.send(message);
	}
}

Test.java

	package com.mail.quipoin;
	
	import org.springframework.beans.factory.*;
	import org.springframework.beans.factory.xml.XmlBeanFactory;
	import org.springframework.core.io.*;
	
	public class Test {
		public static void main(String[] args) {
			Resource r=new ClassPathResource("applicationContext.xml");
			BeanFactory b=new XmlBeanFactory(r);
			Mail m=(Mail) b.getBean("mailMail");
			String sender="naveenrm36@gmail.com";//sender g-mail id
			String receiver="naveenrm38@gmail.com";//Receiver g-mail id
			m.sendMail(sender, receiver, "Offer letter", "Welcome to the quipo family");
	
			System.out.println("Success!!");
		}
	}

applicationContext.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p"
	xsi:schemaLocation="http://www.springframework.org/schema/beans   
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd">

	<bean id="mailSender" class="org.springframework.mail.javamail.JavaMailSenderImpl">
		<property name="host" value="smtp.gmail.com" />
		<property name="username" value="naveenrm36@gmail.com" />
		<property name="password" value="Naveen@333" />
		<property name="javaMailProperties">
			<props>
				<prop key="mail.smtp.auth">true</prop>
				<prop key="mail.smtp.socketFactory.port">465</prop>
				<prop key="mail.smtp.socketFactory.class">javax.net.ssl.SSLSocketFactory</prop>
				<prop key="mail.smtp.port">465</prop>
			</props>
		</property>
	</bean>
	<bean id="mailMail" class="com.mail.quipoin.Mail">
		<property name="mailSender" ref="mailSender" />
	</bean>
</beans>  

Output:

Success!!