Specific examples of sending mail by Java mail

package ;
/**
* Basic information required to send emails
*/
import ;
public class MailSenderInfo {
// The IP and port of the server that sends the mail
 private String mailServerHost;
 private String mailServerPort = "25";
// The address of the sender of the email
 private String fromAddress;
// The address of the email recipient
 private String toAddress;
// Log in to the username and password of the server
 private String userName;
 private String password;
// Is identity verification required
 private boolean validate = false;
// Email Subject
 private String subject;
// The text content of the email
 private String content;
// File name of the email attachment
 private String[] attachFileNames;  
 /**
* Obtain email session attributes
   */
 public Properties getProperties(){
   Properties p = new Properties();
   ("", );
   ("", );
   ("", validate ? "true" : "false");
   return p;
 }
 public String getMailServerHost() {
   return mailServerHost;
 }
 public void setMailServerHost(String mailServerHost) {
   = mailServerHost;
 }
 public String getMailServerPort() {
   return mailServerPort;
 }
 public void setMailServerPort(String mailServerPort) {
   = mailServerPort;
 }
 public boolean isValidate() {
   return validate;
 }
 public void setValidate(boolean validate) {
   = validate;
 }
 public String[] getAttachFileNames() {
   return attachFileNames;
 }
 public void setAttachFileNames(String[] fileNames) {
   = fileNames;
 }
 public String getFromAddress() {
   return fromAddress;
 }
 public void setFromAddress(String fromAddress) {
   = fromAddress;
 }
 public String getPassword() {
   return password;
 }
 public void setPassword(String password) {
   = password;
 }
 public String getToAddress() {
   return toAddress;
 }
 public void setToAddress(String toAddress) {
   = toAddress;
 }
 public String getUserName() {
   return userName;
 }
 public void setUserName(String userName) {
   = userName;
 }
 public String getSubject() {
   return subject;
 }
 public void setSubject(String subject) {
   = subject;
 }
 public String getContent() {
   return content;
 }
 public void setContent(String textContent) {
   = textContent;
 }
}

package ;

import ;
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import ;

/**
* Simple mail (mail without attachments) sender
*/
public class SimpleMailSender  {
/**
* Send emails in text format
* @param mailInfo Information about the email to be sent
  */
 public boolean sendTextMail(MailSenderInfo mailInfo) {
// Determine whether identity authentication is required
   MyAuthenticator authenticator = null;
   Properties pro = ();
   if (()) {
// If identity authentication is required, create a password authenticator
  authenticator = new MyAuthenticator((), ());
   }
// Construct a session to send emails based on the email session properties and password validator
   Session sendMailSession = (pro,authenticator);
   try {
// Create an email message based on the session
   Message mailMessage = new MimeMessage(sendMailSession);
// Create the email sender address
   Address from = new InternetAddress(());
// Set the sender of the email message
   (from);
// Create the recipient address of the email and set it to the email message
   Address to = new InternetAddress(());
   (,to);
// Set the subject of the email message
   (());
// Set the time for sending email messages
   (new Date());
// Set the main content of the email message
   String mailContent = ();
   (mailContent);
// Send email
   (mailMessage);
   return true;
   } catch (MessagingException ex) {
    ();
   }
   return false;
 }

 /**
* Send emails in HTML format
* @param mailInfo mail information to be sent
   */
 public static boolean sendHtmlMail(MailSenderInfo mailInfo){
// Determine whether identity authentication is required
   MyAuthenticator authenticator = null;
   Properties pro = ();
//If identity authentication is required, create a password authenticator
   if (()) {
  authenticator = new MyAuthenticator((), ());
   }
// Construct a session to send emails based on the email session properties and password validator
   Session sendMailSession = (pro,authenticator);
   try {
// Create an email message based on the session
   Message mailMessage = new MimeMessage(sendMailSession);
// Create the email sender address
   Address from = new InternetAddress(());
// Set the sender of the email message
   (from);
// Create the recipient address of the email and set it to the email message
   Address to = new InternetAddress(());
// The attribute indicates that the type of the receiver is TO
   (,to);
// Set the subject of the email message
   (());
// Set the time for sending email messages
   (new Date());
// The MiniMultipart class is a container class that contains objects of type MimeBodyPart
   Multipart mainPart = new MimeMultipart();
// Create a MimeBodyPart containing HTML content
   BodyPart html = new MimeBodyPart();
// Set HTML content
   ((), "text/html; charset=utf-8");
   (html);
// Set the MiniMultipart object to the mail content
   (mainPart);
// Send email
   (mailMessage);
   return true;
   } catch (MessagingException ex) {
    ();
   }
   return false;
 }
}

package ;

import .*;

public class MyAuthenticator extends Authenticator{
 String userName=null;
 String password=null;

 public MyAuthenticator(){
 }
 public MyAuthenticator(String username, String password) {
   = username;
   = password;
 }
 protected PasswordAuthentication getPasswordAuthentication(){
  return new PasswordAuthentication(userName, password);
 }
}

public static void main(String[] args){
//This class mainly sets up emails
   MailSenderInfo mailInfo = new MailSenderInfo();
   ("smtp.");
   ("25");
   (true);
   ("han2000lei@");
("*********");//Your email password
   ("han2000lei@");
   ("han2000lei@");
("Set the email title");
("Set the mailbox content");
//This class mainly sends emails
   SimpleMailSender sms = new SimpleMailSender();
(mailInfo);//Send text format
(mailInfo);//Send html format
 }