java集成email(QQ邮箱)

1. 导入依赖

<dependency>
      <groupId>javax.mail</groupId>
      <artifactId>mail</artifactId>
      <version>1.5.0-b01</version>
</dependency>

2. yaml配置

#发送邮件的账户
  mail:
    host: smtp.qq.com
    username: ****@foxmail.com
    touser: ****@163.com
    #授权码
    password: ******
    #编码
    default-encoding: UTF-8
    properties:
      mail:
        smtp:
          auth: true
          starttls:
            enable: true
            required: true

3. 代码实现

import javax.mail.*;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
import java.util.Properties;

/**
 * 发邮件工具类
 */
public final class MailUtils {

	/**
	 * @param host     smtp
	 * @param auth     true
	 * @param user     发送人
	 * @param password 发送人密码
	 * @param to       接收人
	 * @param text     发送信息
	 * @param title    标题
	 * @return
	 */
	public static boolean sendMail(String host, String auth, String user, String password, String to, String text, String title) {
		try {
			final Properties props = new Properties();
			props.put("mail.smtp.auth", auth);
			props.put("mail.smtp.host", host);
			// 发件人的账号
			props.put("mail.user", user);
			//发件人的密码
			props.put("mail.password", password);
			// 构建授权信息，用于进行SMTP进行身份验证
			Authenticator authenticator = new Authenticator() {
				@Override
				protected PasswordAuthentication getPasswordAuthentication() {
					// 用户名、密码
					String userName = props.getProperty("mail.user");
					String password = props.getProperty("mail.password");
					return new PasswordAuthentication(userName, password);
				}
			};
			// 使用环境属性和授权信息，创建邮件会话
			Session mailSession = Session.getInstance(props, authenticator);
			// 创建邮件消息
			MimeMessage message = new MimeMessage(mailSession);
			// 设置发件人
			String username = props.getProperty("mail.user");
			InternetAddress form = new InternetAddress(username);
			message.setFrom(form);
			// 设置收件人
			InternetAddress toAddress = new InternetAddress(to);
			message.setRecipient(Message.RecipientType.TO, toAddress);
			// 设置邮件标题
			message.setSubject(title);
			// 设置邮件的内容体
			message.setContent(text, "text/html;charset=UTF-8");
			// 发送邮件
			Transport.send(message);
			return true;
		} catch (Exception e) {
			e.printStackTrace();
		}
		return false;
	}
}