java Mail Notification Tool Class

It is difficult to avoid the need for e-mail notification. There are also many e-mail templates and tool classes on the network. Here is a tool class for reference

The previous article re-encapsulated the tools given to better fit the project needs but provided the original tool classes as a reference given here.

Introduce rack package below

Tool class

package com.leon.isoftstoneweb.commen.utils.email;
 
import java.util.Date;
import java.util.Properties;
 
import javax.mail.Address;
import javax.mail.BodyPart;
import javax.mail.Message;
import javax.mail.Multipart;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeBodyPart;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeMultipart;
 
/**
 * @author leon
 * @createDate 2018年6月22日 上午9:32:05
 * @version v1.0
 * @classRemarks 邮件工具类
 */
public class SendEmailUtil {
 
 
 
 /**
  * 以文本格式发送邮件
  *
  * @param mailInfo
  *   待发送的邮件的信息
  */
 public boolean sendTextMail(MailBody mailInfo) throws Exception {
  // 判断是否需要身份认证
  MailAuthenticator authenticator = null;
  Properties pro = mailInfo.getProperties();
  if (mailInfo.isValidate()) {
   // 如果需要身份认证，则创建1个密码验证器
   authenticator = new MailAuthenticator(mailInfo.getUserName(), mailInfo.getPassword());
  }
  // 根据邮件会话属性和密码验证器构造1个发送邮件的session
  Session sendMailSession = Session.getDefaultInstance(pro, authenticator);
  // logBefore(logger, "构造1个发送邮件的session");
 
  // 根据session创建1个邮件消息
  Message mailMessage = new MimeMessage(sendMailSession);
  // 创建邮件发送者地址
  Address from = new InternetAddress(mailInfo.getFromAddress());
  // 设置邮件消息的发送者
  mailMessage.setFrom(from);
  // 创建邮件的接收者地址，并设置到邮件消息中
  Address to = new InternetAddress(mailInfo.getToAddress());
  mailMessage.setRecipient(Message.RecipientType.TO, to);
  // 设置邮件消息的主题
  mailMessage.setSubject(mailInfo.getSubject());
  // 设置邮件消息发送的时间
  mailMessage.setSentDate(new Date());
  // 设置邮件消息的主要内容
  String mailContent = mailInfo.getContent();
  mailMessage.setText(mailContent);
  // 发送邮件
  Transport.send(mailMessage);
  // System.out.println("发送成功！");
  return true;
 }
 
 /**
  * 以HTML格式发送邮件
  *
  * @param mailInfo
  *   待发送的邮件信息
  */
 public boolean sendHtmlMail(MailBody mailInfo) throws Exception {
  // 判断是否需要身份认证
  MailAuthenticator authenticator = null;
  Properties pro = mailInfo.getProperties();
  // 如果需要身份认证，则创建1个密码验证器
  if (mailInfo.isValidate()) {
   authenticator = new MailAuthenticator(mailInfo.getUserName(), mailInfo.getPassword());
  }
  // 根据邮件会话属性和密码验证器构造1个发送邮件的session
  Session sendMailSession = Session.getDefaultInstance(pro, authenticator);
 
  // 根据session创建1个邮件消息
  Message mailMessage = new MimeMessage(sendMailSession);
  // 创建邮件发送者地址
  Address from = new InternetAddress(mailInfo.getFromAddress());
  // 设置邮件消息的发送者
  mailMessage.setFrom(from);
  // 创建邮件的接收者地址，并设置到邮件消息中
  Address to = new InternetAddress(mailInfo.getToAddress());
  // Message.RecipientType.TO属性表示接收者的类型为TO
  mailMessage.setRecipient(Message.RecipientType.TO, to);
  // 设置邮件消息的主题
  mailMessage.setSubject(mailInfo.getSubject());
  // 设置邮件消息发送的时间
  mailMessage.setSentDate(new Date());
  // MiniMultipart类是1个容器类，包含MimeBodyPart类型的对象
  Multipart mainPart = new MimeMultipart();
  // 创建1个包含HTML内容的MimeBodyPart
  BodyPart html = new MimeBodyPart();
  // 设置HTML内容
  html.setContent(mailInfo.getContent(), "text/html; charset=utf-8");
  mainPart.addBodyPart(html);
  // 将MiniMultipart对象设置为邮件内容
  mailMessage.setContent(mainPart);
  // 发送邮件
  Transport.send(mailMessage);
  return true;
 }
 
 /**
  * @param SMTP
  *   邮件服务器
  * @param PORT
  *   端口
  * @param EMAIL
  *   本邮箱账号
  * @param PAW
  *   本邮箱密码
  * @param toEMAIL
  *   对方箱账号
  * @param TITLE
  *   标题
  * @param CONTENT
  *   内容
  * @param TYPE
  *   1：文本格式;2：HTML格式
  */
 public static boolean sendEmail(String SMTP, String PORT, String EMAIL, String PAW, String toEMAIL, String TITLE,
   String CONTENT, String TYPE) {
 
  // 这个类主要是设置邮件
  MailBody mailInfo = new MailBody();
 
  mailInfo.setMailServerHost(SMTP);
  mailInfo.setMailServerPort(PORT);
  mailInfo.setValidate(true);
  mailInfo.setUserName(EMAIL);
  mailInfo.setPassword(PAW);
  mailInfo.setFromAddress(EMAIL);
  mailInfo.setToAddress(toEMAIL);
  mailInfo.setSubject(TITLE);
  mailInfo.setContent(CONTENT);
  // 这个类主要来发送邮件
 
  SendEmailUtil sms = new SendEmailUtil();
  try {
   if ("1".equals(TYPE)) {
    return sms.sendTextMail(mailInfo);
   } else {
    return sms.sendHtmlMail(mailInfo);
   }
  } catch (Exception e) {
   return false;
  }
 
 }
 
 public static void main(String[] args) {
  SendEmailUtil.sendEmail("smtp.isoftstone.com", "25", "441053249@qq.com",
    "whkay+11F", "441053249@qq.com", "系统邮件测试",
    "******审批流程 已审核!", "2");
 }
 
}

Basic information needed for mail

package com.leon.isoftstoneweb.commen.utils.email;
 
import java.util.Properties;
 
 
/**
 * @author leon
 * @createDate 2018 Year 6 Month 22 Day   Morning 9:35:05
 * @version v1.0
 * @classRemarks  Basic information needed to send mail 
 */
 
public class MailBody {
 
 //  Of the server that sent the mail IP And ports 
 private String mailServerHost;
 private String mailServerPort = "25";
 //  The address of the message sender 
 private String fromAddress;
 //  The address of the recipient of the message 
 private String toAddress;
 //  User name and password for logging in to the sending mail server 
 private String userName;
 private String password;
 //  Do you need authentication 
 private boolean validate = false;
 //  Mail Subject 
 private String subject;
 //  Text content of message 
 private String content;
 //  File name of message attachment 
 private String[] attachFileNames;
 
 /**
  *  Get Mail Session Properties 
  */
 public Properties getProperties() {
  Properties p = new Properties();
  p.put("mail.smtp.host", this.mailServerHost);
  p.put("mail.smtp.port", this.mailServerPort);
  p.put("mail.smtp.auth", validate ? "true" : "false");
  return p;
 }
 
 public String getMailServerHost() {
  return mailServerHost;
 }
 
 public void setMailServerHost(String mailServerHost) {
  this.mailServerHost = mailServerHost;
 }
 
 public String getMailServerPort() {
  return mailServerPort;
 }
 
 public void setMailServerPort(String mailServerPort) {
  this.mailServerPort = mailServerPort;
 }
 
 public boolean isValidate() {
  return validate;
 }
 
 public void setValidate(boolean validate) {
  this.validate = validate;
 }
 
 public String[] getAttachFileNames() {
  return attachFileNames;
 }
 
 public void setAttachFileNames(String[] fileNames) {
  this.attachFileNames = fileNames;
 }
 
 public String getFromAddress() {
  return fromAddress;
 }
 
 public void setFromAddress(String fromAddress) {
  this.fromAddress = fromAddress;
 }
 
 public String getPassword() {
  return password;
 }
 
 public void setPassword(String password) {
  this.password = password;
 }
 
 public String getToAddress() {
  return toAddress;
 }
 
 public void setToAddress(String toAddress) {
  this.toAddress = toAddress;
 }
 
 public String getUserName() {
  return userName;
 }
 
 public void setUserName(String userName) {
  this.userName = userName;
 }
 
 public String getSubject() {
  return subject;
 }
 
 public void setSubject(String subject) {
  this.subject = subject;
 }
 
 public String getContent() {
  return content;
 }
 
 public void setContent(String textContent) {
  this.content = textContent;
 }
}

Mail Server Authentication Entity Class

package com.leon.isoftstoneweb.commen.utils.email;
 
import javax.mail.*; 
 
/**
 * @author leon
 * @createDate 2018 Year 6 Month 22 Day   Morning 9:35:05
 * @version v1.0
 * @classRemarks  Authentication entity class 
 */
 
public class MailAuthenticator extends Authenticator{ 
 String userName=null; 
 String password=null; 
  
 public MailAuthenticator(){ 
 } 
 public MailAuthenticator(String username, String password) { 
  this.userName = username; 
  this.password = password; 
 } 
 protected PasswordAuthentication getPasswordAuthentication(){ 
  return new PasswordAuthentication(userName, password); 
 } 
}