java邮件发送的实现

网友投稿 236 2023-07-03


java邮件发送的实现

邮件是在日常生活中,这篇文章主要介绍了java实现基于SMTP发送邮件的方法,实例分析了java基于SMTP服务发送邮件的相关技巧,具有一定参考借鉴价值,需要的朋友可以参考下.

1.写一个 MailSendProper 类封装需要的属性

import java.util.Properties;

public class MailSendProper {

    private String Host ;          //发送邮件服务器的ip

    private String Port ;          //发送邮件服务器的端口号

    private String SendAddress ;      //邮件发送者的地址

    private String ReceiveAddress ;     //邮件接受者的地址

    private String username ;        //登录发送邮箱的用户名

    private String password ;        //登录发送邮箱的密码

    private boolean isvalidate = true ;   //是否需要身份验证

    private String subject ;        //邮件标题

    private String content ;       //邮件内容

    public String getSubject() {

      return subject;

    }

    public void setSubject(String subject) {

      this.subject = subject;

    }

    public String getContent() {

      return content;

    }

    public void setContent(String conLUxCVZzitent) {

      this.content = content;

    }

    public String getHost() {

      return Host;

    }

    public void setHost(String host) {

      Host = host;

    }

    public String getPort() {

      return Port;

    }

    public void setPort(String port) {

      Port = port;

    }

    public String getSendAddress() {

      return SendAddress;

    }

    public void setSendAddress(String sendAddress) {

      SendAddress = sendAddress;

    }

    public String getReceiveAddress() {

      return ReceiveAddress;

    }

    public void setReceiveAddress(String receiveAddress) {

      ReceiveAddress = receiveAddress;

    }

    public String getUsername() {

      return username;

    }

    public void setUsername(String username) {

      this.username = username;

    }

    public String getPassword() {

      return password;

    }

    public void setPassword(String password) {

      this.password = password;  

    }

    public boolean isIsvalidate() {

      return isvalidate;

    }

    public void setIsvalidate(boolean isvalidate) {

      this.isvalidate = isvalidate;

    }

    public Properties getProperties(){

      Properties properties = new Properties() ;

      properties.put("mail.smtp.host", this.Host) ;

      properties.put("mail.smtp.port", this.Port) ;

      properties.put("mail.smtp.auth", isvalidate?"true":"false") ;

      return properties ;

    }

}

2、写一个  EmailMessage 封装 发送信息

public class EmailMessage {

    private String title ;

    private String context ;

    private String toEmail ;

    public EmailMessage() {

      super();

    }

    public EmailMessage(String title, String context, String toEmail) {

      super();

      this.title = title;

      this.context = context;

      this.toEmail = toEmail;

    }

    public String getTitle() {

      return title;

    }

    public void setTitle(String title) {

      this.title = title;

    }

    public String getContext() {

      return context;

    }

    public void setContext(String context) {

      this.context = context;

    }

    public String getToEmail() {

      return toEmail;

    }

    public void setToEmail(String toEmail) {

      this.toEmail = toEmail;

    }

}

3、写一个 MailAttorney  邮箱密码验证器 类

import javax.mail.Authenticator;

import javax.mail.PasswordAuthentication;

public class MailAttorney extends Authenticator {

  private String username ;

  private String password ;

  public MailAttorney(String username,String password) {

    this.username = username ;

    this.password = password ;

  }

  //覆盖父类方法,获取密码认证器

  @Override

  protected PasswordAuthentication getPasswordAuthentication() {

    return new PasswordAuthentication(username,password) ;

  }

}

4 、 写一个 MailSend  邮件工具类

import java.util.Date;

import javax.mail.Address;

import javax.mail.Message;

import javax.mail.Session;

import javax.mail.Transport;

import javax.mail.internet.InternetAddress;

import javax.mail.internet.MimeMessage;

import com.VTBBS.entity.EmailMessage;

public class MailSend {

    public static boolean mailTest(MailSendProper mailsender){

        MailAttorney attorney = null ;

        if(mailsender.isIsvalidate()){//判断是否需要身份认证

          attorney = new MailAttorney(mailsender.getUsername(),mailsender.getPassword()) ;

        }

        //根据邮箱会话属性和密码验证器构造一个发送邮箱的seesion

        Session session = Session.getInstance(mailsender.getProperties(),attorney) ;

        //根据session创建一个邮件消息

        Message mailMessage = new MimeMessage(session) ;

        try {

          //创建邮件发送者的地址

          Address from = new InternetAddress(mailsender.getSendAddress()) ;

          //设置邮箱消息的发送者

          mailMessage.setFrom(from);

          //创建邮件接收这的地址,并设置到邮件消息中

          Address to = new InternetAddress(mailsender.getReceiveAddress()) ;

          mailMessage.setRecipient(Message.RecipientType.TO, to);

          mailMessage.setSubject(mailsender.getSubject()); //设置邮件标题

          mailMessage.setSentDate(new Date()); //设置发送邮件时间

          mailMessage.setText(mailsender.getContent()); //设置邮件内容

          Transport.send(mailMessage);

          return true ;

        } catch (Exception e) {

          e.printStackTrace();

          return false ;

        }

    }

    public static boolean sendEmail(EmailMessage message){

        MailSendProper mail = new MailSendProper() ;

        mail.setHost("smtp.126.com");          //smtp简单的邮件传输协议,默认端口号是25,

        mail.setPort("25");

        mail.setIsvalidate(true);              //需呀身份验证

        mail.setUsername("");               //设置登录用户名

        mail.setPassword("");               //设置发送者的密码

        mail.setSendAddress("");             //设置发送这的地址 发送者地址和登录用户名是同一个

        mail.setReceiveAddress(message.getToEmail());  //设置接收者的地址

        mail.setSubject(message.getTitle());        //设置邮箱标题

        mail.setContent(message.getContext());      //设置邮箱的内容

        return mailTest(mail) ;

    }

}

注意:使用的邮箱必须开启POP3/SMTP服务 才能发送成功,不同的邮箱,邮箱的传输协议不一样如:

QQ邮箱:SMTP传输协议是 smtp.qq.com 端口 25

POP3传输协议是 pop3.qq.com  端口 110

5、使用方法测试

public LUxCVZzistatic void main(String[] args) {

  EmailMessage message = new EmailMessage() ;

  String code = String.valueOf(Math.random()).substring(3, 9) ; //生成验证码

  message.setTitle("邮箱验证");                  //邮件标题

  message.setContext("尊敬的用户你好,你的验证码为"+code+"。"); //邮件内容

  message.setToEmail("940202884@qq.com"); //要发送给谁

  System.out.println(MailSend.sendEmail(message)?"发送成功":"发送失败") ;

}

希望本文所述对大家学习java程序设计有所帮助。


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