java发送QQ邮件-qq邮箱怎么发送文件夹

首先要开启QQ邮箱SMTP/POP3服务获取秘钥为emaillPass

写在配置文件中

emailPass=XXXXXXXX
hosts=smtp.qq.com
fromAddress=XXXXXX@qq.com
emailusername=XXXXXXdada

代码如下:

package com.zk.shop.utils;
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;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;
import com.sun.mail.util.MailSSLSocketFactory;
/**
 * JavaMail发送邮件:前提是QQ邮箱里帐号设置要开启POP3/SMTP协议
 */
@Component
public class SimpleMailSender {
	@Value("${fromAddress}")
	private String fromAddress;
	@Value("${emailusername}")
	private String emailusername;
	@Value("${emailPass}")
	private String emailPass;
	@Value("${hosts}")
	private String hosts;
	public void main(String[] args) throws Exception {
	}
	public boolean sendMSG(String type, String emailTo, String UUID) {
		try {
			Properties prop = new Properties();
			// 开启debug调试，以便在控制台查看
			// prop.setProperty("mail.debug", "true");
			// 设置邮件服务器主机名
			prop.setProperty("mail.host", "smtp.qq.com");
			// 发送服务器需要身份验证
			prop.setProperty("mail.smtp.auth", "true");
			// 发送邮件协议名称
			prop.setProperty("mail.transport.protocol", "smtp");
			// 开启SSL加密，否则会失败
			MailSSLSocketFactory sf = new MailSSLSocketFactory();
			sf.setTrustAllHosts(true);
			prop.put("mail.smtp.ssl.enable", "true");
			prop.put("mail.smtp.ssl.socketFactory", sf);
			// 创建session
			Session session = Session.getInstance(prop);
			// 通过session得到transport对象
			Transport ts = session.getTransport();
			// 连接邮件服务器：邮箱类型，帐号，授权码代替密码（更安全）
			System.out.println("emailusername=" + emailusername);
			ts.connect(hosts, emailusername, emailPass);// 后面的字符是授权码
			// 创建邮件
			Message message = createSimpleMail(type, emailTo, UUID, session);
			// 发送邮件
			ts.sendMessage(message, message.getAllRecipients());
			ts.close();
			return true;
		} catch (Exception e) {
			return false;
		}
	}
	/**
	 * @Method: createSimpleMail
	 * @Description: 创建一封只包含文本的邮件
	 */
	public MimeMessage createSimpleMail(String type, String emailTo, String UUID, Session session) throws Exception {
		// 创建邮件对象
		MimeMessage message = new MimeMessage(session);
		// 指明邮件的发件人
		message.setFrom(new InternetAddress(fromAddress));
		// 指明邮件的收件人
		message.setRecipient(Message.RecipientType.TO, new InternetAddress(emailTo));
		// 邮件的标题
		message.setSubject("修改密码");
		// 邮件的文本内容
		if ("create".equals(type))
			message.setContent("尊敬的用户,您正在尝试注册帐号,请将后面内容复制到验证栏:" + UUID + "\n如不是本人操作,请勿将验证码发送给他人!!!", "text/html;charset=UTF-8");
		else if ("reset".equals(type))
			message.setContent("尊敬的用户,您正在尝试修改密码,请将后面内容复制到修改密码处:" + UUID + "\n如不是本人操作,请勿将验证码发送给他人!!!", "text/html;charset=UTF-8");
		// 返回创建好的邮件对象
		return message;
	}
}