Java使用QQ邮箱发送邮件

2018-05-28

1.下载jar包

2.将mail.jar 和 activation.jar两个jar包导入项目

3.发送邮件代码如下

public static boolean sendEmail(String to, String title, String content, String from, String key) {
		String host = "smtp.qq.com"; // QQ 邮件服务器
		Properties properties = System.getProperties();// 获取系统属性
		properties.setProperty("mail.smtp.host", host);// 设置邮件服务器
		properties.put("mail.smtp.auth", "true");
		MailSSLSocketFactory sf;
		try {
			sf = new MailSSLSocketFactory();
		} catch (GeneralSecurityException e) {
			return false;
		}
		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(from, key); // 发件人邮件用户名、密码
			}
		});
		try {
			MimeMessage message = new MimeMessage(session);// 创建默认的
															// MimeMessage对象
			message.setFrom(new InternetAddress(from, "测试", "UTF-8"));// Set
			// From:头部头字段
			message.addRecipient(Message.RecipientType.TO, new InternetAddress(to));// Set
																					// To:头部头字段
			message.setSubject(title, "UTF-8");// Set Subject:头部头字段
			message.setContent(content, "text/html;charset=UTF-8");// 设置消息体
			message.setSentDate(new Date());
			Transport.send(message);// 发送消息
		} catch (MessagingException | UnsupportedEncodingException mex) {
			return false;
		}
		return true;
	}

4.需要导入的包

import java.io.UnsupportedEncodingException;
import java.security.GeneralSecurityException;
import java.util.Date;
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;