1 jar包
email.jar包，网上下载
2 源代码
package zjr.amy.emil.test; 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.MimeMessage; /** * 发邮件测试 * @author zhujinrong * */ public class MailTest { static Authenticator auth = new Authenticator(){ @Override protected PasswordAuthentication getPasswordAuthentication() { // TODO Auto-generated method stub return new PasswordAuthentication("1251759009@qq.com", "密码"); } }; /** * 主函数 * @param args */ public static void main(String[] args) throws MessagingException { // TODO Auto-generated method stub Properties props = new Properties(); props.put("mail.smtp.host", "smtp.qq.com"); props.put("mail.smtp.auth", "true"); props.put("mail.from", "1251759009@qq.com"); Session session = Session.getInstance(props, auth); MimeMessage msg = new MimeMessage(session); msg.setFrom(); msg.setRecipients(Message.RecipientType.TO, "2804163771@qq.com"); msg.setSubject("JavaMail hello world example"); msg.setSentDate(new Date()); msg.setText("<html><body><span style='color:red;'>Hello world!</span></body></html>", "utf-8", "html"); Transport.send(msg); } }
3 运行结果
4 遇到的错误
Exception in thread "main" javax.mail.AuthenticationFailedException: 454 Authentication failed, please open smtp flag first! at com.sun.mail.smtp.SMTPTransport$Authenticator.authenticate(SMTPTransport.java:826) at com.sun.mail.smtp.SMTPTransport.authenticate(SMTPTransport.java:761) at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:685) at javax.mail.Service.connect(Service.java:317) at javax.mail.Service.connect(Service.java:176) at javax.mail.Service.connect(Service.java:125) at javax.mail.Transport.send0(Transport.java:194) at javax.mail.Transport.send(Transport.java:124) at zjr.amy.emil.test.MailTest.main(MailTest.java:46)
原因：没有qq邮箱没有开启smtp服务
解决方法：在QQ邮箱的设置里面，找到账户-》POP3/IMAP/SMTP选择开启POP3/SMTP服务
5 git地址
git地址：https://github.com/HelloAmy/JavaStudy.git