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  • Could not connect to SMTP host: localhost, port: 25;

    1、错误描写叙述

    DEBUG: setDebug: JavaMail version 1.3.3
    DEBUG: getProvider() returning javax.mail.Provider[TRANSPORT,smtp,com.sun.mail.smtp.SMTPTransport,Sun Microsystems, Inc]
    DEBUG SMTP: useEhlo true, useAuth true
    DEBUG SMTP: trying to connect to host "localhost", port 25, isSSL false
    Exception in thread "main" javax.mail.MessagingException: Could not connect to SMTP host: localhost, port: 25;
      nested exception is:
    	java.net.ConnectException: Connection refused: connect
    	at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:1227)
    	at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:322)
    	at javax.mail.Service.connect(Service.java:236)
    	at javax.mail.Service.connect(Service.java:137)
    	at com.you.mail.model.SendMessage.sendMessage(SendMessage.java:70)
    	at com.you.mail.model.SendMessage.main(SendMessage.java:89)

    2、错误原因

         从报错可知,无法连接SMTP服务主机


    3、解决的方法

        配置正确的SMTP服务主机。保证服务连接上

    String server = "smtp.163.com";
    String username = "";
    String password = "";
    		
    Transport transport = session.getTransport();
    transport.connect(server, username, password);
    transport.sendMessage(message, message.getRecipients(Message.RecipientType.TO));
    transport.close();


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  • 原文地址:https://www.cnblogs.com/mfmdaoyou/p/7081900.html
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