SpringSource Javax Mail framework implements the addition and sending of email attachments
SpringSource Javax Mail framework implements the addition and sending of email attachments
Overview:
This article will introduce how to use SpringSource Javax Mail framework to add and send email attachments.Mail attachment is a function used to send emails, which allows various files in the mail, such as documents, pictures, audio, etc.In Java, you can easily implement the addition and sending of email accessories through SpringSource Javax Mail framework.
step:
The following is the steps to add and send email attachments to add and send email attachments:
1. Import related dependence:
First of all, you need to add SpringSource Javax Mail to the project's pom.xml (if you use Maven):
<dependency>
<groupId>javax.mail</groupId>
<artifactId>javax.mail-api</artifactId>
<version>1.6.2</version>
</dependency>
<dependency>
<groupId>com.sun.mail</groupId>
<artifactId>javax.mail</artifactId>
<version>1.6.2</version>
</dependency>
2. Create email objects:
Use the MIMEMESSAGE class in the javax.mail package to create an email object, and set its content, sender, recipient, theme and other attributes.
import javax.mail.internet.MimeMessage;
MimeMessage message = new MimeMessage(session);
message.setFrom(new InternetAddress("sender@example.com"));
message.addRecipient(Message.RecipientType.TO, new InternetAddress("recipient@example.com"));
Message.setsubject ("Email theme");
3. Create email accessories:
Create an email attachment object with the MIMEBODYPART class in the javax.mail package.You can use FiledataSource to load files as attachments.
import javax.mail.BodyPart;
import javax.mail.MessagingException;
import javax.mail.internet.MimeBodyPart;
import javax.mail.internet.MimeMultipart;
import javax.activation.DataSource;
import javax.activation.FileDataSource;
private BodyPart createAttachment(String filePath) throws MessagingException {
MimeBodyPart attachmentPart = new MimeBodyPart();
DataSource source = new FileDataSource(filePath);
attachmentPart.setDataHandler(new DataHandler(source));
attachmentPart.setFileName(new File(filePath).getName());
return attachmentPart;
}
4. Add attachment to mail:
Add the created attachment to the Mimemultipart object.
MimeMultipart multipart = new MimeMultipart();
multipart.addBodyPart(textPart);
multipart.addBodyPart(attachmentPart);
message.setContent(multipart);
5. Send mail:
Use the Transport class in the javax.mail package to send emails.
import javax.mail.Transport;
Transport.send(message);
Example code:
The following is a complete sample code that demonstrates how to use the SpringSource Javax Mail framework to implement mail to send an attachment to the attachment.
import javax.mail.*;
import javax.mail.internet.*;
import java.util.Properties;
public class EmailSender {
public static void main(String[] args) throws MessagingException {
String host = "your-smtp-host";
String port = "your-smtp-port";
String username = "your-username";
String password = "your-password";
// Set the mail server attribute
Properties props = new Properties();
props.put("mail.smtp.host", host);
props.put("mail.smtp.port", port);
props.put("mail.smtp.auth", "true");
// Create a session object
Session session = Session.getInstance(props, new Authenticator() {
protected PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(username, password);
}
});
// Create mail objects
MimeMessage message = new MimeMessage(session);
message.setFrom(new InternetAddress("sender@example.com"));
message.addRecipient(Message.RecipientType.TO, new InternetAddress("recipient@example.com"));
Message.setsubject ("Email theme");
// Create mail content
MimeBodyPart textPart = new MimeBodyPart();
TextPart.Settext ("This is an email with attachments.");
MimeBodyPart attachmentPart = new MimeBodyPart();
DataSource source = new FileDataSource("path/to/file.jpg");
attachmentPart.setDataHandler(new DataHandler(source));
attachmentPart.setFileName("file.jpg");
// Add the attachment to the email
MimeMultipart multipart = new MimeMultipart();
multipart.addBodyPart(textPart);
multipart.addBodyPart(attachmentPart);
message.setContent(multipart);
// send email
Transport.send(message);
}
}
Summarize:
Through the steps and sample code of this article, you can easily use the Springsource Javax Mail framework to add and send an attachment to the attachment to sending the attachment to the attachment to the use of SpringSource Javax Mail framework.This method is suitable for various email servers and email attachment types.You only need to create email objects and attachment objects according to the above steps, add them to the email, and then send emails with the Transport class.
