用java 实现一个 发送邮件的Demo(用的是QQ邮箱) 但发送总是失败，QQ邮箱中的 Smtp 服务也都开启了，密码用的是获取的授权码
public static void main(String[] args) {
// 收件人电子邮箱
String to = “123@qq.com”;
// 发件人电子邮箱
String from = “456@qq.com”;
// 指定发送邮件的主机为 smtp.qq.com
String host = “smtp.qq.com”; //QQ 邮件服务器
// 获取系统属性
Properties properties = System.getProperties();
// 设置邮件服务器
properties.setProperty(“mail.smtp.host”, host);
properties.put(“mail.smtp.auth”, “true”);
properties.put(“mail.smtp.port”, “465”);
properties.put(“mail.smtp.socketFactory.port”, “465”);
properties.put(“mail.smtp.socketFactory.class”, “javax.net.ssl.SSLSocketFactory”);
properties.put(“mail.smtp.starttls.enable”, “true”);
properties.put(“mail.smtp.socketFactory.fallback”, “false”);
properties.put(“mail.smtp.starttls.enable”, “true”);
properties.put(“mail.smtp.ssl.trust”, “smtp.qq.com”);
// 获取默认session对象
Session session = Session.getDefaultInstance(properties,new Authenticator(){
public PasswordAuthentication getPasswordAuthentication()
{
return new PasswordAuthentication(“456@qq.com”, “123123”); //发件人邮件用户名、密码
}
});
session.setDebug(true);
try{
// 创建默认的 MimeMessage 对象
MimeMessage message = new MimeMessage(session);
// Set From: 头部头字段
message.setFrom(new InternetAddress(from));
// Set To: 头部头字段
message.addRecipient(Message.RecipientType.TO,
new InternetAddress(to));
// Set Subject: 头部头字段
message.setSubject(“This is the Subject Line!”);
// 设置消息体
message.setText(“This is actual message”);
// 发送消息
Transport.send(message);
System.out.println(“Sent message successfully….from w3cschool.cc”);
}catch (MessagingException mex) {
mex.printStackTrace();
}
}
错误提示
DEBUG SMTP: trying to connect to host “smtp.qq.com”, port 465, isSSL false
javax.mail.MessagingException: Could not connect to SMTP host: smtp.qq.com, port: 465;
nested exception is:
javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:1972)
at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:642)
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 com.syx.email.MailTest3.main(MailTest3.java:68)
有没有做过类似的大神指点一下 …^.^…