java email 发送 java发送邮件的简单实现

Java实现发送邮件

1、授权码+邮箱账号
a、添加maven依赖

<dependency>
<groupId>javax.mail</groupId>
<artifactId>mail</artifactId>
<version>1.4.7</version>
</dependency>

b、测试邮件发送

import java.util.Properties;

import javax.mail.Message;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
/**
 * 
 * java实现邮箱发送邮件功能
 * 
 * 
 * @author WQ
 *
 */
public class JavaMail {
     public static void main(String[] args) throws Exception {
            Properties props = new Properties();
            props.setProperty("mail.smtp.auth", "true");
            props.setProperty("mail.transport.protocol", "smtp");
            props.put("mail.smtp.host","smtp.163.com");// smtp服务器地址
            
            Session session = Session.getInstance(props);
            session.setDebug(true);
            
            Message msg = new MimeMessage(session);
            msg.setSubject("这是一个测试程序....");
            msg.setText("你好!这是我的第一个javamail程序---WQ");
            msg.setFrom(new InternetAddress("183****[e-mail]"));//发件人邮箱(我的163邮箱)
            msg.setRecipient(Message.RecipientType.TO,
                    new InternetAddress("183****[e-mail]")); //收件人邮箱(我的QQ邮箱)
            msg.saveChanges();

            Transport transport = session.getTransport();
            transport.connect("183****[e-mail]","d****56");//发件人邮箱,授权码(可以在邮箱设置中获取到授权码的信息)
            
            transport.sendMessage(msg, msg.getAllRecipients());
            
            System.out.println("邮件发送成功...");
            transport.close();
        }
}

163邮箱授权码位置

接收邮件

1、邮箱账号+邮箱密码

a、添加maven依赖

<dependency>
<groupId>javax.mail</groupId>
<artifactId>mail</artifactId>
<version>1.4.7</version>
</dependency>
b、发送邮件测试

import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
import java.util.Date;
import java.util.Properties;
public class SendEmail {
    public static String myEmailAccount = "****";//邮箱账号
    public static String myEmailPassword = "****";//邮箱密码
    public static String myEmailSMTPHost = "smtp.ym.163.com";//发送邮箱服务器地址（这个地址是网易企业邮箱的地址）
    public static void sendEmail(String text,String receiveEmail) throws Exception {
    		Properties props = new Properties();                 
        	props.setProperty("mail.transport.protocol", "smtp");   
        	props.setProperty("mail.smtp.host", myEmailSMTPHost);   
        	props.setProperty("mail.smtp.auth", "true");           
            final String smtpPort = "994";
            props.setProperty("mail.smtp.port", smtpPort);
            props.setProperty("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory");
            props.setProperty("mail.smtp.socketFactory.fallback", "false");
            props.setProperty("mail.smtp.socketFactory.port", smtpPort);
        Session session = Session.getDefaultInstance(props);
        session.setDebug(true);                                 // 设置为debug模式, 可以查看详细的发送 log
        MimeMessage message = createMimeMessage(session, myEmailAccount, receiveEmail,text);
        Transport transport = session.getTransport();
        transport.connect(myEmailAccount, myEmailPassword);
        transport.sendMessage(message, message.getAllRecipients());
        transport.close();
    }

    
    public static MimeMessage createMimeMessage(Session session, String sendMail, String receiveMail,String text) throws Exception {
        MimeMessage message = new MimeMessage(session);
        message.setFrom(new InternetAddress(sendMail, "*****", "UTF-8"));
        message.setRecipient(MimeMessage.RecipientType.TO, new InternetAddress(receiveMail,"", "UTF-8"));
        message.setSubject("邮箱验证", "UTF-8");
        message.setContent(text, "text/html;charset=UTF-8");
        message.setSentDate(new Date());
        message.saveChanges();
        return message;
    }
    public static void main(String[] args) throws Exception {
    	sendEmail("这是内容，验证码45845","183****[e-mail]");
	}
}

接收邮件

注：1、QQ邮箱有时候会将邮件当成垃圾邮件，导致QQ邮箱不能正常获取邮件
2、不同的邮箱每天有限制的最高发送邮件数量，网易企业邮箱免费版是100条
3、如果超出了最高发送量，则会报错
DEBUG SMTP: MessagingException while sending, THROW:
com.sun.mail.smtp.SMTPSendFailedException: 554 5.5.0 MI:STC