Question

现在我想将此otp发送到gmail，然后从那里我必须阅读otp然后进入登录页面并使认证成功。我正在使用java API发送邮件，这是用于发送邮件的程序（apache版本7本地主机正在使用）包com.otp;

import java.util.Properties;

import javax.mail.Message; import javax.mail.PasswordAuthentication; import javax.mail.Session; import javax.mail.Transport; import javax.mail.internet.InternetAddress; import javax.mail.internet.MimeMessage;

public class SendMail { public static void send（String to，String sub，String msg， final String user，final String pass）{ //创建Properties Class的实例属性props = new Properties（）;

    /*
     * Specifies the IP address of your default mail server for e.g if you
     * are using gmail server as an email sever you will pass smtp.gmail.com
     * as value of mail.smtp host. As shown here in the code. Change
     * accordingly, if your email id is not a gmail id
     */

    props.put("mail.smtp.host", "smtp.gmail.com");  
      props.put("mail.smtp.socketFactory.port", "465");  
      props.put("mail.smtp.socketFactory.class",  
                "javax.net.ssl.SSLSocketFactory");  
      props.put("mail.smtp.auth", "true");  
      props.put("mail.smtp.port", "465"); 
      props.put("mail.smtp.starttls.enable","true");

    /*
     * Pass Properties object(props) and Authenticator object for
     * authentication to Session instance
     */

    Session session = Session.getInstance(props,
            new javax.mail.Authenticator() {
                protected PasswordAuthentication getPasswordAuthentication() {
                    return new PasswordAuthentication(user, pass);
                }
            });

    try {

        /*
         * Create an instance of MimeMessage, it accept MIME types and
         * headers
         */

        MimeMessage message = new MimeMessage(session);
        message.setFrom(new InternetAddress(user));
        message.addRecipient(Message.RecipientType.TO, new InternetAddress(
                to));
        message.setSubject(sub);
        message.setText(msg);
        /* Transport class is used to deliver the message to the recipients */

        Transport.send(message);

    } catch (Exception e) {
        e.printStackTrace();
    }
}

}

但是我得到了以下错误。

com.sun.mail.util.MailConnectException：无法连接到主机，端口：smtp.gmail.com，465;超时-1; 嵌套异常是： java.net.UnknownHostException：smtp.gmail.com at com.sun.mail.smtp.SMTPTransport.openServer（SMTPTransport.java:2054） at com.sun.mail.smtp.SMTPTransport.protocolConnect（SMTPTransport.java:697）在javax.mail.Service.connect（Service.java:386）在javax.mail.Service.connect（Service.java:245）在javax.mail.Service.connect（Service.java:194）在javax.mail.Transport.send0（Transport.java:253）在javax.mail.Transport.send（Transport.java:124）在com.otp.SendMail.send（SendMail.java:60）在com.otp.Generate.doGet（Generate.java:57）在javax.servlet.http.HttpServlet.service（HttpServlet.java:624）在javax.servlet.http.HttpServlet.service（HttpServlet.java:731）在org.apache.catalina.core.ApplicationFilterChain.internalDoFilter（ApplicationFilterChain.java:303）在org.apache.catalina.core.ApplicationFilterChain.doFilter（ApplicationFilterChain.java:208）在org.apache.tomcat.websocket.server.WsFilter.doFilter（WsFilter.java:52）在org.apache.catalina.core.ApplicationFilterChain.internalDoFilter（ApplicationFilterChain.java:241）在org.apache.catalina.core.ApplicationFilterChain.doFilter（ApplicationFilterChain.java:208）在org.apache.catalina.core.StandardWrapperValve.invoke（StandardWrapperValve.java:220）在org.apache.catalina.core.StandardContextValve.invoke（StandardContextValve.java:122）在org.apache.catalina.authenticator.AuthenticatorBase.invoke（AuthenticatorBase.java:505）在org.apache.catalina.core.StandardHostValve.invoke（StandardHostValve.java:170）在org.apache.catalina.valves.ErrorReportValve.invoke（ErrorReportValve.java:103）在org.apache.catalina.valves.AccessLogValve.invoke（AccessLogValve.java:956）在org.apache.catalina.core.StandardEngineValve.invoke（StandardEngineValve.java:116）在org.apache.catalina.connector.CoyoteAdapter.service（CoyoteAdapter.java:423）在org.apache.coyote.http11.AbstractHttp11Processor.process（AbstractHttp11Processor.java:1079） at org.apache.coyote.AbstractProtocol $ AbstractConnectionHandler.process（AbstractProtocol.java:625）在org.apache.tomcat.util.net.AprEndpoint $ SocketProcessor.doRun（AprEndpoint.java:2522）在org.apache.tomcat.util.net.AprEndpoint $ SocketProcessor.run（AprEndpoint.java:2511） at java.util.concurrent.ThreadPoolExecutor.runWorker（Unknown Source） at java.util.concurrent.ThreadPoolExecutor $ Worker.run（Unknown Source） at org.apache.tomcat.util.threads.TaskThread $ WrappingRunnable.run（TaskThread.java:61）在java.lang.Thread.run（未知来源）引起：java.net.UnknownHostException：smtp.gmail.com 在java.net.AbstractPlainSocketImpl.connect（未知来源）在java.net.PlainSocketImpl.connect（未知来源）在java.net.SocksSocketImpl.connect（未知来源）在java.net.Socket.connect（未知来源）在java.net.Socket.connect（未知来源） at com.sun.mail.util.SocketFetcher.createSocket（SocketFetcher.java:331）在com.sun.mail.util.SocketFetcher.getSocket（SocketFetcher.java:238）在com.sun.mail.smtp.SMTPTransport.openServer（SMTPTransport.java:2020） ......还有31个

如何解决它。并将otp代码发送到我的Gmail帐户？是否有任何其他方法可以将生成的otp数字发送到Gmail或如何解决上述问题。请在这个问题上指导我。

我正在使用RFC 6238生成OTP，稍作修改。

0 个答案: