使用java发送邮箱

使用java发送邮箱

• 以qq邮箱为例说明发送邮箱

---

导包

<!-- 发送邮件 -->
        <dependency>
            <groupId>com.sun.mail</groupId>
            <artifactId>javax.mail</artifactId>
            <version>1.6.0</version>
        </dependency>
    </dependencies>

qq邮箱开启POP3/SMTP服务

设置-.>账户->POP3/IMAP/SMTP/Exchange/CardDAV/CalDAV服务
开启POP3/SMTP服务
生成授权码后将授权码保存，后面会用

代码

package com.spring.until;

import java.security.GeneralSecurityException;
import java.util.Properties;

import javax.mail.Authenticator;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;

import com.sun.mail.util.MailSSLSocketFactory;

public class SendEmail {
    public static boolean send(String email,String title,String body) throws GeneralSecurityException 
    {
        // 收件人电子邮箱
        String to = email;

        // 发件人电子邮箱
        String from =  PropertiesUntil.Properties("account");

        // 指定发送邮件的主机为 smtp.qq.com
        String host = "smtp.qq.com";  //QQ 邮件服务器

        // 获取系统属性
        Properties properties = System.getProperties();

        // 设置邮件服务器
        properties.setProperty("mail.smtp.host", host);

        properties.put("mail.smtp.auth", "true");
        MailSSLSocketFactory sf = new MailSSLSocketFactory();
        sf.setTrustAllHosts(true);
        properties.put("mail.smtp.ssl.enable", "true");
        properties.put("mail.smtp.ssl.socketFactory", sf);
        // 获取默认session对象
        Session session = Session.getDefaultInstance(properties,new Authenticator(){
            public PasswordAuthentication getPasswordAuthentication()
            {
                return new PasswordAuthentication( PropertiesUntil.Properties("account"),  PropertiesUntil.Properties("password")); //发件人邮件用户名、密码
            }
        });

        try{
            // 创建默认的 MimeMessage 对象
            MimeMessage message = new MimeMessage(session);

            // Set From: 头部头字段
            message.setFrom(new InternetAddress(from));

            // Set To: 头部头字段
            message.addRecipient(Message.RecipientType.TO, new InternetAddress(to));

            // Set Subject: 头部头字段
            message.setSubject(title);

            // 设置消息体
            message.setText(body);

            // 发送消息
            Transport.send(message);
            return true;
        }catch (MessagingException mex) {
            return false;
        }
    }
}

PropertiesUntil.Properties(“account”) 发送人邮箱账号
PropertiesUntil.Properties(“password”) 发送人邮件密码，注意是刚刚生成的
授权码
String email,String title,String body 三个参数分别为收件人邮箱，标题，正文