工具类总结(4)-邮件发送工具类

左手的ㄟ右手 2022-06-05 12:37 240阅读 0赞

**java发送邮件,以qq邮件示例(注册激活用户)**

import com.sun.mail.util.MailSSLSocketFactory;
    
    import java.security.GeneralSecurityException;
    import java.util.Properties;
    
    import javax.mail.Authenticator;
    import javax.mail.Message;
    import javax.mail.Message.RecipientType;
    import javax.mail.MessagingException;
    import javax.mail.PasswordAuthentication;
    import javax.mail.Session;
    import javax.mail.Transport;
    import javax.mail.internet.AddressException;
    import javax.mail.internet.InternetAddress;
    import javax.mail.internet.MimeMessage;
    
    /** * 邮件发送工具类 * * @author menglinjie */
    public class MailUitls { 
        /** * 发送邮件的方法 * * @param to :收件人 * @param code :激活码 */
        public static void sendMail(String to, int code) {
            /** * 1.获得一个Session对象. * 2.创建一个代表邮件的对象Message. * 3.发送邮件Transport */
            // 1.获得连接对象
            Properties props = new Properties();
            props.setProperty("mail.debug", "true");
            props.setProperty("mail.host", "smtp.qq.com");
            // 发送服务器需要身份验证
            props.setProperty("mail.smtp.auth", "true");
            // 发送邮件协议名称
            props.setProperty("mail.transport.protocol", "smtp");
    
            MailSSLSocketFactory sf = null;
            try {
                sf = new MailSSLSocketFactory();
            } catch (GeneralSecurityException e) {
                e.printStackTrace();
            }
            sf.setTrustAllHosts(true);
            props.put("mail.smtp.ssl.enable", "true");
            props.put("mail.smtp.ssl.socketFactory", sf);
    
            Session session = Session.getInstance(props, new Authenticator() {
    
                @Override
                protected PasswordAuthentication getPasswordAuthentication() {
                    return new PasswordAuthentication("xxxx@qq.com", "xxxxxx");//你自己的邮件地址及密码(或邮箱POP3密码)
                }
    
            });
            // 2.创建邮件对象:
            Message message = new MimeMessage(session);
            // 设置发件人:你自己的邮件地址及密码
            try {
                message.setFrom(new InternetAddress("xxxx@qq.com"));
                // 设置收件人:
                message.addRecipient(RecipientType.TO, new InternetAddress(to));
                // 抄送 CC 密送BCC
                // 设置标题
                message.setSubject("来自官方激活邮件");
                // 设置邮件正文:
                message.setContent("<h1>官方激活邮件!点下面链接完成激活操作!</h1><h3><a href='http://localhost:8080/user/activate.action?code=" + code + "'>http://localhost:8080/user/activate.action?code=" + code + "</a></h3>", "text/html;charset=UTF-8");
                // 3.发送邮件:
                Transport.send(message);
            } catch (AddressException e) {
                e.printStackTrace();
            } catch (MessagingException e) {
                e.printStackTrace();
            }
    
        }
    
    
    }

**要发送qq邮件,必须开启POP3/SMTP服务**  
**QQ邮箱–设置–账户–POP3/IMAP/SMTP/Exchange/CardDAV/CalDAV服务–开启POP3/SMTP服务**  
然后上面会有POP3密码  
![这里写图片描述][SouthEast]  
可用于用户注册激活操作

[SouthEast]: /images/20220605/ff335aa5cb174e94a7b4cb4ba1c89fa8.png