JAVA EXAMPLE PROGRAMS

JAVA EXAMPLE PROGRAMS
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Send E-mail with attachment using spring 3


This page gives step by step instructions to send email with attachement using spring 3. This example uses org.springframework.mail.javamail.JavaMailSender interface to send email.

Here is the maven pom.xml file with required dependencies:

<project xmlns="http://maven.apache.org/POM/4.0.0" 
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 
	http://maven.apache.org/xsd/maven-4.0.0.xsd">
	<modelVersion>4.0.0</modelVersion>
	<groupId>SpringJavaBasedConfig</groupId>
	<artifactId>SpringJavaBasedConfig</artifactId>
	<version>0.0.1-SNAPSHOT</version>
	<properties>
		<spring.version>3.2.0.RELEASE</spring.version>
	</properties>
	<dependencies>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-core</artifactId>
			<version>${spring.version}</version>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-context</artifactId>
			<version>${spring.version}</version>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-context-support</artifactId>
			<version>${spring.version}</version>
		</dependency>
		<dependency>
			<groupId>javax.mail</groupId>
			<artifactId>mail</artifactId>
			<version>1.4.7</version>
		</dependency>
	</dependencies>
</project>

Here is the sample code for email sender service, you can see the code to add attachment:

package com.java2novice.services;

import javax.mail.MessagingException;
import javax.mail.internet.MimeMessage;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.core.io.ByteArrayResource;
import org.springframework.mail.javamail.JavaMailSender;
import org.springframework.mail.javamail.MimeMessageHelper;
import org.springframework.stereotype.Service;

@Service("emailService")
public class EmailService {

	@Autowired
	private JavaMailSender mailSender;
	
	public void sendEmail(String to,String from,String sub,String msgBody,byte[] content){
		
		MimeMessage message = mailSender.createMimeMessage();
		try {
			MimeMessageHelper helper = new MimeMessageHelper(message, true);
			helper.setFrom(from);
			helper.setTo(to);
			helper.setSubject(sub);
			helper.setText(msgBody);
			helper.addAttachment("MyTestFile.txt", new ByteArrayResource(content));
			mailSender.send(message);
		} catch (MessagingException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}
}

Xml based configuration file with java mail properties:

<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xmlns:context="http://www.springframework.org/schema/context"
	xsi:schemaLocation="http://www.springframework.org/schema/beans
	http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
	http://www.springframework.org/schema/context 
	http://www.springframework.org/schema/context/spring-context-3.0.xsd">
	
    <context:component-scan base-package="com.java2novice" /> 
    
    <bean id="mailSender" class="org.springframework.mail.javamail.JavaMailSenderImpl">
		<property name="host" value="smtp.gmail.com" />
		<property name="port" value="587" />
		<property name="username" value="user_name" />
		<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>
    
</beans>

Finally email sender demo class:

package com.java2novice.test;

import java.io.File;
import java.io.FileInputStream;
import java.io.InputStream;

import org.springframework.context.ConfigurableApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import com.java2novice.services.EmailService;

public class SpringDemo {

	public static void main(String a[]){

		InputStream is = null;
		String toAddr = "[email protected]";
		String fromAddr = "[email protected]";
		String subject = "My Test Mail";
		String body = "Test mail body";
		StringBuilder sb = new StringBuilder();
		String confFile = "applicationContext.xml";
		ConfigurableApplicationContext context 
						= new ClassPathXmlApplicationContext(confFile);
		EmailService emailService = (EmailService) context.getBean("emailService");
		try {
			is = new FileInputStream(new File("/Users/ngootooru/test.txt"));
			byte[] tmp = new byte[4*1024];
			int size = 0;
			while((size = is.read(tmp)) != -1){
				sb.append(new String(tmp, 0, size));
			}
		} catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		emailService.sendEmail(toAddr, fromAddr, subject, body, sb.toString().getBytes());
	}
}

Output:
DEBUG: JavaMail version 1.4.7
DEBUG: successfully loaded resource: /META-INF/javamail.default.providers
DEBUG: Tables of loaded providers
DEBUG: successfully loaded resource: /META-INF/javamail.default.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 587, isSSL false
220 mx.google.com ESMTP fk13sm7733236pdb.39 - gsmtp
DEBUG SMTP: connected to host "smtp.gmail.com", port: 587

EHLO 192.168.1.2
250-mx.google.com at your service, [122.166.88.121]
250-SIZE 35882577
250-8BITMIME
250-STARTTLS
250-ENHANCEDSTATUSCODES
250 CHUNKING
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 "CHUNKING", arg ""
STARTTLS
220 2.0.0 Ready to start TLS
EHLO 192.168.1.2
250-mx.google.com at your service, [122.166.88.121]
250-SIZE 35882577
250-8BITMIME
250-AUTH LOGIN PLAIN XOAUTH XOAUTH2 PLAIN-CLIENTTOKEN
250-ENHANCEDSTATUSCODES
250 CHUNKING
DEBUG SMTP: Found extension "SIZE", arg "35882577"
DEBUG SMTP: Found extension "8BITMIME", arg ""
DEBUG SMTP: Found extension "AUTH", arg "LOGIN PLAIN XOAUTH XOAUTH2 PLAIN-CLIENTTOKEN"
DEBUG SMTP: Found extension "ENHANCEDSTATUSCODES", arg ""
DEBUG SMTP: Found extension "CHUNKING", 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:<[email protected]>
250 2.1.0 OK fk13sm7733236pdb.39 - gsmtp
RCPT TO:<[email protected]>
250 2.1.5 OK fk13sm7733236pdb.39 - gsmtp
DEBUG SMTP: Verified Addresses
DEBUG SMTP:   [email protected]
DATA
354  Go ahead fk13sm7733236pdb.39 - gsmtp
Date: Fri, 18 Jul 2014 20:14:14 +0530 (GMT+05:30)
From: [email protected]
To: [email protected]
Message-ID: <1278499651.2.1405694654776.JavaMail.ngootooru@BANL1191b66dd.local>
Subject: My Test Mail
MIME-Version: 1.0
Content-Type: multipart/mixed; 
	boundary="----=_Part_0_994682772.1405694649843"

------=_Part_0_994682772.1405694649843
Content-Type: multipart/related; 
	boundary="----=_Part_1_689477006.1405694649854"

------=_Part_1_689477006.1405694649854
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit

Test mail body
------=_Part_1_689477006.1405694649854--

------=_Part_0_994682772.1405694649843
Content-Type: text/plain; charset=us-ascii; name=MyTestFile.txt
Content-Transfer-Encoding: 7bit
Content-Disposition: attachment; filename=MyTestFile.txt

r620dev02.corplab.intuit.net
r620sdt01.corplab.intuit.net

------=_Part_0_994682772.1405694649843--
.
250 2.0.0 OK 1405694657 fk13sm7733236pdb.39 - gsmtp
QUIT
221 2.0.0 closing connection fk13sm7733236pdb.39 - gsmtp
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About Author

I'm Nataraja Gootooru, programmer by profession and passionate about technologies. All examples given here are as simple as possible to help beginners. The source code is compiled and tested in my dev environment.

If you come across any mistakes or bugs, please email me to [email protected].

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