Question

我正在尝试将Javamail应用程序连接到James服务器，但我正在

javax.mail.MessagingException：无法连接到SMTP主机：localhost，port：4555; 嵌套异常是：java.net.SocketException：无效的arguent：connect

这是代码，它为我创造了一个小问题：

import java.security.Security;

import java.io.IOException;
import java.io.PrintWriter;
import java.util.Properties;
import javax.mail.*;
import javax.mail.internet.*;

public class mail  {

public static void main(String[] argts)
{
Security.addProvider(new com.sun.net.ssl.internal.ssl.Provider());


       String mailHost = "your.smtp.server";



        String to = "blue@localhost";



        String from = "red@localhost";
        String subject = "jdk";
        String body = "Down to wind";

        if ((from != null) && (to != null) && (subject != null)  && (body != null)) // we have mail to send
        {

        try {


            //Get system properties
            Properties props = System.getProperties();


            props.put("mail.smtp.user", "red");
            props.put("mail.smtp.host", "localhost");
            props.put("mail.debug", "true");
            props.put("mail.smtp.port", 4555);


            props.put("mail.smtp.socketFactory.port", 4555);
            props.put("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory");
            props.put("mail.smtp.socketFactory.fallback", "false");

            Session session = Session.getInstance(props,null);


            Message message = new MimeMessage(session);
            message.setFrom(new InternetAddress(from));
            message.setRecipients(Message.RecipientType.TO, new InternetAddress[] { new InternetAddress(to) });
            message.setSubject(subject);
            message.setContent(body, "text/plain");
            message.setText(body);
            Transport.send(message);


            System.out.println("<b>Thank you.  Your message to " + to + " was successfully sent.</b>");

        } catch (Throwable t) {
           System.out.println("Teri maa ki "+t);
        }


        }

    }




}

提前致谢。：）

Answer 1

        props.put("mail.smtp.host", "localhost");
        props.put("mail.smtp.port", 4555);

这两行是否使您的代码连接到您的localhost（您自己的计算机？），端口4555.我认为有问题的SMTP服务器正在其他主机上运行。将主机名放入第一个属性，将正确的端口（通常为25）放入第二个属性，这样就可以了。

如果这没有帮助，请提供有关您的设置的详细信息：运行SMTP服务器的主机，正在监听的端口，是否使用SSL（根据您的代码，是吗？），您在哪里运行客户，......

James Server连接失败异常

1 个答案: