자바 메일이 작동하지 않습니다.

Question

자바 메일 API를 사용하여 이메일을 보내고 있습니다. 그리고 내 자신의 계정에서 이메일을 보낼 때 잘 작동합니다. 하지만 다른 계정으로 이메일을 보내려고하면 인증 예외가 발생합니다. 여기 내 코드는 다음과 같습니다

package nl.cofely.MailHandler; 

import java.util.Date; 
import java.util.Properties; 
import javax.activation.CommandMap; 
import javax.activation.DataHandler; 
import javax.activation.DataSource; 
import javax.activation.FileDataSource; 
import javax.activation.MailcapCommandMap; 
import javax.mail.BodyPart; 
import javax.mail.Multipart; 
import javax.mail.PasswordAuthentication; 
import javax.mail.Session; 
import javax.mail.Transport; 
import javax.mail.internet.InternetAddress; 
import javax.mail.internet.MimeBodyPart; 
import javax.mail.internet.MimeMessage; 
import javax.mail.internet.MimeMultipart; 

public class Mail extends javax.mail.Authenticator { 
private String _user; 
private String[] _to; 
private String _from; 
private String _pass; 

private String _port; 
private String _sport; 

private String _host; 

private String _subject; 
private String _body; 

private boolean _auth; 

private boolean _debuggable; 

private boolean testMessageSend; 

private Multipart _multipart; 
static Mail instance; 

private Mail() { 
    _host = "smtp.gmail.com"; // default smtp server 
    _port = "465"; // default smtp port 
    _sport = "465"; // default socketfactory port 

    _subject = "Person in trouble !"; // email subject 
    _body = ""; // email body 

    _debuggable = false; // debug mode on or off - default off 
    _auth = true; // smtp authentication - default on 

    _multipart = new MimeMultipart(); 

    // There is something wrong with MailCap, javamail can not find a 
    // handler for the multipart/mixed part, so this bit needs to be added. 
    MailcapCommandMap mc = (MailcapCommandMap) CommandMap 
      .getDefaultCommandMap(); 
    mc.addMailcap("text/html;; x-java-content-handler=com.sun.mail.handlers.text_html"); 
    mc.addMailcap("text/xml;; x-java-content-handler=com.sun.mail.handlers.text_xml"); 
    mc.addMailcap("text/plain;; x-java-content-handler=com.sun.mail.handlers.text_plain"); 
    mc.addMailcap("multipart/*;; x-java-content-handler=com.sun.mail.handlers.multipart_mixed"); 
    mc.addMailcap("message/rfc822;; x-java-content-handler=com.sun.mail.handlers.message_rfc822"); 
    CommandMap.setDefaultCommandMap(mc); 
} 
public static Mail getInstance(){ 
    if(instance == null){ 
     instance = new Mail(); 
    } 
    return instance; 
} 

public void addAttachment(String filename) throws Exception { 
    BodyPart messageBodyPart = new MimeBodyPart(); 
    DataSource source = new FileDataSource(filename); 
    messageBodyPart.setDataHandler(new DataHandler(source)); 
    messageBodyPart.setFileName(filename); 

    _multipart.addBodyPart(messageBodyPart); 
} 

@Override 
public PasswordAuthentication getPasswordAuthentication() { 
    return new PasswordAuthentication(_user, _pass); 
} 

private Properties _setProperties() { 
    Properties props = new Properties(); 

    props.put("mail.smtp.host", _host); 

    if (_debuggable) { 
     props.put("mail.debug", "true"); 
    } 

    if (_auth) { 
     props.put("mail.smtp.auth", "true"); 
    } 

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

    return props; 
} 

// the getters and setters 
public String getBody() { 
    return _body; 
} 

public void setBody(String _body) { 
    _body = _body + " gebruiker: " + _from; 
    this._body = _body; 
} 

// more of the getters and setters ….. 
public boolean send() throws Exception { 
    Properties props = _setProperties(); 

    if (!_user.equals("") && !_pass.equals("") && _to.length > 0 
      && !_from.equals("") && !_subject.equals("") 
      && !_body.equals("")) { 
     Session session = Session.getInstance(props, this); 

     MimeMessage msg = new MimeMessage(session); 

     msg.setFrom(new InternetAddress(_from)); 

     InternetAddress[] addressTo = new InternetAddress[_to.length]; 
     for (int i = 0; i < _to.length; i++) { 
      addressTo[i] = new InternetAddress(_to[i]); 
     } 
     msg.setRecipients(MimeMessage.RecipientType.TO, addressTo); 

     msg.setSubject(_subject); 
     msg.setSentDate(new Date()); 

     // setup message body 
     BodyPart messageBodyPart = new MimeBodyPart(); 
     messageBodyPart.setText(_body); 
     if(testMessageSend){ 
      _multipart.removeBodyPart(0); 
     } 
     _multipart.addBodyPart(messageBodyPart,0); 
     System.out.println(_multipart.getBodyPart(0)); 

     // Put parts in message 
     msg.setContent(_multipart); 


     // send email 
     Transport.send(msg); 

     return true; 
    } else { 
     return false; 
    } 
} 
public boolean sendTestMail() throws Exception{ 
    setSubject("Testing mail configuration!"); 
    setBody("Dit is een email voor het testen van de email configuratie "); 
    testMessageSend = send(); 
    setBody(""); 
    return testMessageSend; 
} 
public void setFrom(String _from){ 
    this._from = _from; 
} 
public String getFrom(){ 
    return _from; 
} 
public void setPass(String _pass){ 
    this._pass = _pass; 
} 
public String getPass(){ 
    return _pass; 
} 
public void setSubject(String _subject){ 
    this._subject = _subject; 
} 
public String getSubject(){ 
    return _subject; 
} 
public void setUser(String _user){ 
    this._user = _user; 
} 
public String getUser(){ 
    return _user; 
} 

public void updateUserInfo(String[] _to, String _from, String _pass){ 
    this._to = _to; 
    this._from = _from; 
    this._pass = _pass; 
    this._user = _to[0].substring(0, _to[0].lastIndexOf("@")); 
} 

}

사람이 여기에 무슨 일이 일어나고 있는지 알 수 있습니까? 이 같은 감사

Answer 1

시도 뭔가 :

public int sendMail(String reciever_email, String subject, String body) { 
    final String username = "YOUR USER EMAIL"; 
    final String password = "PASSWORD"; 
    Properties props = new Properties(); 
    props.put("mail.smtp.user", username); 
    props.put("mail.smtp.host", "smtp.gmail.com"); 
    props.put("mail.smtp.port", "25"); 
    props.put("mail.debug", "true"); 
    props.put("mail.smtp.auth", "true"); 
    props.put("mail.smtp.starttls.enable", "true"); 
    props.put("mail.smtp.EnableSSL.enable", "true"); 
    props.setProperty("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory"); 
    props.setProperty("mail.smtp.socketFactory.fallbac k", "false"); 
    props.setProperty("mail.smtp.port", "465"); 
    props.setProperty("mail.smtp.socketFactory.port", "465"); 
    Session session = Session.getInstance(props, 
      new javax.mail.Authenticator() { 
     protected PasswordAuthentication getPasswordAuthentication() { 
      return new PasswordAuthentication(username, password); 
     } 
    }); 

    try { 
     Message message = new MimeMessage(session); 
     message.setFrom(new InternetAddress(username)); 
     message.setRecipients(Message.RecipientType.TO, InternetAddress.parse(reciever_email)); 
     message.setSubject(subject); 
     message.setText(body); 
     Multipart multipart = new MimeMultipart("related"); 
     BodyPart htmlPart = new MimeBodyPart(); 
     htmlPart.setContent("<html>HELLO</html>", "text/html"); 

     multipart.addBodyPart(htmlPart); 
     message.setContent(multipart); 
     Transport.send(message); 
     return 1; 
    } catch (Exception e) { 
     return 0; 

    } 
}