Javaail API JAR
Javaail API JAR
The Javamail API JAR document is a reference document for the Javamail API library. It provides developers with detailed information about how to use the Javamail library.This article will discuss the main features provided by the Javamail API and provide relevant Java code examples to help readers better understand and use the API.
The Javamail API is a standard API used to send and receive emails on the Java platform.It provides a simple and easy -to -use way to communicate with the email server through programming.The following are some of the main functions of the Javamail API:
1. Create and send email: Through the Javamail API, you can easily create and send emails.For example, the recipient, the issuer, the theme and content of the mail can be set up, and select the attachment.The following is an example of Java code sending emails:
import javax.mail.*;
import javax.mail.internet.*;
public class SendEmail {
public static void main(String[] args) {
// The configuration information of the SMTP server
String host = "smtp.example.com";
String port = "25";
String username = "your_username";
String password = "your_password";
// Create the attribute object and set the information about the SMTP server
Properties properties = new Properties();
properties.put("mail.smtp.host", host);
properties.put("mail.smtp.port", port);
properties.put("mail.smtp.auth", "true");
// Create a session object and perform authentication
Session session = Session.getInstance(properties, new Authenticator() {
@Override
protected PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(username, password);
}
});
try {
// Create mail objects
Message message = new MimeMessage(session);
message.setFrom(new InternetAddress("sender@example.com"));
message.setRecipients(Message.RecipientType.TO, InternetAddress.parse("recipient@example.com"));
message.setSubject("Hello, JavaMail API!");
message.setText("This is a test email sent using JavaMail API.");
// send email
Transport.send(message);
System.out.println("Email sent successfully.");
} catch (MessagingException e) {
e.printStackTrace();
}
}
}
2. Receive and read email: Javamail API also provides the function of receiving and reading emails.You can connect to the mail server by using the Java Mail API and retrieve emails.The following is an example of Java code code for all emails in receiving and printing in the income box:
import javax.mail.*;
import javax.mail.internet.*;
import java.util.Properties;
public class ReceiveEmail {
public static void main(String[] args) {
// The configuration information of the mail server
String host = "imap.example.com";
String port = "993";
String username = "your_username";
String password = "your_password";
// Create the attribute object and set the information about the iMAP server
Properties properties = new Properties();
properties.put("mail.store.protocol", "imaps");
properties.put("mail.imaps.host", host);
properties.put("mail.imaps.port", port);
try {
// Create a session object and perform authentication
Session session = Session.getInstance(properties, new Authenticator() {
@Override
protected PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(username, password);
}
});
// Connect to the mail server
Store store = session.getStore("imaps");
store.connect(host, username, password);
// Open the inbox
Folder inbox = store.getFolder("INBOX");
inbox.open(Folder.READ_ONLY);
// Get all the emails in the inbox
Message[] messages = inbox.getMessages();
// Print the theme and sender of each email
for (Message message : messages) {
System.out.println("Subject: " + message.getSubject());
System.out.println("From: " + message.getFrom()[0]);
}
// Turn off the income box and storage
inbox.close(false);
store.close();
} catch (MessagingException e) {
e.printStackTrace();
}
}
}
The above example code only demonstrates the basic usage of the Javamail API.Javamail API also provides other functions, such as deleting emails, sending HTML emails, etc.You can check the Javamail API JAR document to obtain more details and example code.I hope this article will help you understand and use the Javamail API.
