Java pour envoyer un email via gmail

Question

Salut à tous je viens d'essayer d'obtenir un code java pour envoyer un e-mail à un utilisateur en Java via gmail, c'est ce que j'ai:

@ManagedBean 
@ViewScoped 
public class email { 

    // Set up the SMTP server. 
    java.util.Properties props = new java.util.Properties(); 

    public void mail() { 
     System.out.println("Called mail"); 
     props.put(
       "mail.smtp.gmail", "smtp.gmail.com"); 
     props.put("mail.smtp.port", "587"); 

     Session session = Session.getDefaultInstance(props, null); 
// Construct the message 
     String to = "cam01342@myport.ac.uk"; 
     String from = "richard.dennis@port.ac.uk"; 
     String subject = "Hello"; 
     Message msg = new MimeMessage(session); 


     try { 
      System.out.println("Setting up the email"); 
      msg.setFrom(new InternetAddress(from)); 
      msg.setRecipient(Message.RecipientType.TO, new InternetAddress(to)); 
      System.out.println("here"); 

      msg.setSubject("Print Job"); 
      msg.setText("Hi,\n\nHow are you?"); 

      Transport.send(msg); 
      System.out.println("Sending message"); //does not get to this part 
     } catch (MessagingException e) { 
      // Error. 
     } 
    } 
} 

il n'a pas erreurs lors de l'exécution etc, je ne reçois pas le message d'envoi dans la console, et ce n'est que le Transport.send (msg) où il se bloque à ce que j'ai mal fait? sont les paramètres tous ok pour gmail?

modifier:

@ManagedBean 
@ViewScoped 
public class email { 

    // Set up the SMTP server. 
    java.util.Properties props = new java.util.Properties(); 

    public void mail() { 
     System.out.println("Called mail"); 
     String host = "smtp.gmail.com"; 
     String from = "------------"; 
     String pass = "----"; 

     props.put("mail.smtp.starttls.enable", "true"); // added this line 
     props.put("mail.smtp.host", host); 
     props.put("mail.smtp.user", from); 
     props.put("mail.smtp.password", pass); 
     props.put("mail.smtp.port", "587"); 
     props.put("mail.smtp.auth", "true"); 


     Session session = Session.getDefaultInstance(props, null); 
// Construct the message 
     String to = "--------"; 
     String subject = "Hello"; 
     Message msg = new MimeMessage(session); 


     try { 
      System.out.println("Setting up the email"); 
      msg.setFrom(new InternetAddress(from)); 
      msg.setRecipient(Message.RecipientType.TO, new InternetAddress(to)); 
      System.out.println("here"); 

      msg.setSubject("Print Job"); 
      msg.setText("Hi,\n\nHow are you?"); 

      Transport.send(msg); 
      System.out.println("Sending message"); //does not get to this part 
     } catch (MessagingException e) { 
      // Error. 
     } 
    } 
} 

EDIT: Essayer l'exemple dans l'un des liens qui me sont fournis:

@ManagedBean 
@ViewScoped 
public class email { 

    // Set up the SMTP server. 
    public void mail() throws MessagingException { 
     String host = "smtp.gmail.com"; 
     String from = "------------"; 
     String pass = "------"; 
     Properties props = System.getProperties(); 
     props.put("mail.smtp.starttls.enable", "true"); // added this line 
     props.put("mail.smtp.host", host); 
     props.put("mail.smtp.user", from); 
     props.put("mail.smtp.password", pass); 
     props.put("mail.smtp.port", "587"); 
     props.put("mail.smtp.auth", "true"); 

     String[] to = {"-----------"}; // added this line 

     Session session = Session.getDefaultInstance(props, null); 
     MimeMessage message = new MimeMessage(session); 
     message.setFrom(new InternetAddress(from)); 

     InternetAddress[] toAddress = new InternetAddress[to.length]; 

     // To get the array of addresses 
     for (int i = 0; i < to.length; i++) { // changed from a while loop 
      toAddress[i] = new InternetAddress(to[i]); 
     } 
     System.out.println(Message.RecipientType.TO); 

     for (int i = 0; i < toAddress.length; i++) { // changed from a while loop 
      message.addRecipient(Message.RecipientType.TO, toAddress[i]); 
     } 
     message.setSubject("sending in a group"); 
     message.setText("Welcome to JavaMail"); 
     Transport transport = session.getTransport("smtp"); 
     transport.connect(host, from, pass); 
     transport.sendMessage(message, message.getAllRecipients()); 
     transport.close(); 
    } 
} 

ce qui est de lancer cette erreur:

INFO: To 
WARNING: #{email.mail()}: javax.mail.MessagingException: Could not connect to SMTP host: smtp.gmail.com, port: 25; 
    nested exception is: 
    java.net.ConnectException: Connection timed out: connect 
javax.faces.FacesException: #{email.mail()}: javax.mail.MessagingException: Could not connect to SMTP host: smtp.gmail.com, port: 25; 
    nested exception is: 
    java.net.ConnectException: Connection timed out: connect 
    at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:118) 
    at javax.faces.component.UICommand.broadcast(UICommand.java:315) 
    at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:794) 
    at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1259) 
    at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:81) 
    at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101) 
    at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118) 
    at javax.faces.webapp.FacesServlet.service(FacesServlet.java:593) 
    at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1550) 
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:343) 
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:217) 
    at org.primefaces.webapp.filter.FileUploadFilter.doFilter(FileUploadFilter.java:79) 
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:256) 
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:217) 
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:279) 
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175) 
    at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:655) 
    at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:595) 
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:161) 
    at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:331) 
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:231) 
    at com.sun.enterprise.v3.services.impl.ContainerMapper$AdapterCallable.call(ContainerMapper.java:317) 
    at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:195) 
    at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:860) 
    at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:757) 
    at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:1056) 
    at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:229) 
    at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:137) 
    at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:104) 
    at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:90) 
    at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:79) 
    at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:54) 
    at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:59) 
    at com.sun.grizzly.ContextTask.run(ContextTask.java:71) 
    at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:532) 
    at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:513) 
    at java.lang.Thread.run(Thread.java:722) 
Caused by: javax.faces.el.EvaluationException: javax.mail.MessagingException: Could not connect to SMTP host: smtp.gmail.com, port: 25; 
    nested exception is: 
    java.net.ConnectException: Connection timed out: connect 
    at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:102) 
    at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:102) 
    ... 36 more 
Caused by: javax.mail.MessagingException: Could not connect to SMTP host: smtp.gmail.com, port: 25; 
    nested exception is: 
    java.net.ConnectException: Connection timed out: connect 
    at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:1934) 
    at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:638) 
    at javax.mail.Service.connect(Service.java:295) 
    at javax.mail.Service.connect(Service.java:176) 
    at richard.fileupload.email.mail(email.java:101) 
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
    at java.lang.reflect.Method.invoke(Method.java:601) 
    at javax.el.BeanELResolver.invokeMethod(BeanELResolver.java:779) 
    at javax.el.BeanELResolver.invoke(BeanELResolver.java:528) 
    at javax.el.CompositeELResolver.invoke(CompositeELResolver.java:257) 
    at com.sun.el.parser.AstValue.invoke(AstValue.java:248) 
    at com.sun.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:302) 
    at org.jboss.weld.util.el.ForwardingMethodExpression.invoke(ForwardingMethodExpression.java:39) 
    at org.jboss.weld.el.WeldMethodExpression.invoke(WeldMethodExpression.java:50) 
    at com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:105) 
    at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:88) 
    ... 37 more 
Caused by: java.net.ConnectException: Connection timed out: connect 
    at java.net.DualStackPlainSocketImpl.connect0(Native Method) 
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:69) 
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:339) 
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:200) 
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:182) 
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:157) 
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:391) 
    at java.net.Socket.connect(Socket.java:579) 
    at java.net.Socket.connect(Socket.java:528) 
    at com.sun.mail.util.SocketFetcher.createSocket(SocketFetcher.java:288) 
    at com.sun.mail.util.SocketFetcher.getSocket(SocketFetcher.java:231) 
    at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:1900) 
    ... 54 more 

Answer 1

Je pense que vous devez utiliser le port 465 et smtps (Non smtp) pour le transport.

Un code pratique complet d'un projet open source:

http://jstock.hg.sourceforge.net/hgweb/jstock/jstock/file/d9290c44d19c/src/org/yccheok/jstock/alert/GoogleMail.java

/** 
* Send email using GMail SMTP server. 
* 
* @param username GMail username 
* @param password GMail password 
* @param recipientEmail TO recipient 
* @param ccEmail CC recipient. Can be empty if there is no CC recipient 
* @param title title of the message 
* @param message message to be sent 
* @throws AddressException if the email address parse failed 
* @throws MessagingException if the connection is dead or not in the connected state or if the message is not a MimeMessage 
*/ 
public static void Send(final String username, final String password, String recipientEmail, String ccEmail, String title, String message) throws AddressException, MessagingException { 
    Security.addProvider(new com.sun.net.ssl.internal.ssl.Provider()); 
    final String SSL_FACTORY = "javax.net.ssl.SSLSocketFactory"; 

    // Get a Properties object 
    Properties props = System.getProperties(); 
    props.setProperty("mail.smtps.host", "smtp.gmail.com"); 
    props.setProperty("mail.smtp.socketFactory.class", SSL_FACTORY); 
    props.setProperty("mail.smtp.socketFactory.fallback", "false"); 
    props.setProperty("mail.smtp.port", "465"); 
    props.setProperty("mail.smtp.socketFactory.port", "465"); 
    props.setProperty("mail.smtps.auth", "true"); 

    /* 
    If set to false, the QUIT command is sent and the connection is immediately closed. If set 
    to true (the default), causes the transport to wait for the response to the QUIT command. 

    ref : http://java.sun.com/products/javamail/javadocs/com/sun/mail/smtp/package-summary.html 
      http://forum.java.sun.com/thread.jspa?threadID=5205249 
      smtpsend.java - demo program from javamail 
    */ 
    props.put("mail.smtps.quitwait", "false"); 

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

    // -- Create a new message -- 
    final MimeMessage msg = new MimeMessage(session); 

    // -- Set the FROM and TO fields -- 
    msg.setFrom(new InternetAddress(username + "@gmail.com")); 
    msg.setRecipients(Message.RecipientType.TO, InternetAddress.parse(recipientEmail, false)); 

    if (ccEmail.length() > 0) { 
     msg.setRecipients(Message.RecipientType.CC, InternetAddress.parse(ccEmail, false)); 
    } 

    msg.setSubject(title); 
    msg.setText(message, "utf-8"); 
    msg.setSentDate(new Date()); 

    SMTPTransport t = (SMTPTransport)session.getTransport("smtps"); 

    t.connect("smtp.gmail.com", username, password); 
    t.sendMessage(msg, msg.getAllRecipients());  
    t.close(); 
} 

Answer 2

props.put("mail.smtp.port", "587"); 

Essayez de changer code ci-dessus à:

props.put("mail.smtp.port", "465"); 

Où est votre javax.mail.Authenticator();?

Answer 3

Essayez de le faire avec Transport:

final Transport transport = session.getTransport("smtp"); 
    transport.connect(host, from, pass); 
    transport.sendMessage(msg, msg.getAllRecipients()); 
    transport.close(); 

Answer 4

essayer ce code. Il est tout à fait ... Travailler

package my.test.service; 
import java.util.Properties; 
import javax.mail.Authenticator; 
import javax.mail.MessagingException; 
import javax.mail.PasswordAuthentication; 
import javax.mail.Session; 
import javax.mail.Message; 
import javax.mail.Transport; 
import javax.mail.internet.AddressException; 
import javax.mail.internet.InternetAddress; 
import javax.mail.internet.MimeMessage; 
public class Sample { 
    public static void main(String args[]) { 
     final String SMTP_HOST = "smtp.gmail.com"; 
     final String SMTP_PORT = "587"; 
     final String GMAIL_USERNAME = "xxxxxxxxxx@gmail.com"; 
     final String GMAIL_PASSWORD = "xxxxxxxxxx"; 

     System.out.println("Process Started"); 

     Properties prop = System.getProperties(); 
     prop.setProperty("mail.smtp.starttls.enable", "true"); 
     prop.setProperty("mail.smtp.host", SMTP_HOST); 
     prop.setProperty("mail.smtp.user", GMAIL_USERNAME); 
     prop.setProperty("mail.smtp.password", GMAIL_PASSWORD); 
     prop.setProperty("mail.smtp.port", SMTP_PORT); 
     prop.setProperty("mail.smtp.auth", "true"); 
     System.out.println("Props : " + prop); 

     Session session = Session.getInstance(prop, new Authenticator() { 
      protected PasswordAuthentication getPasswordAuthentication() { 
       return new PasswordAuthentication(GMAIL_USERNAME, 
         GMAIL_PASSWORD); 
      } 
     }); 

     System.out.println("Got Session : " + session); 

     MimeMessage message = new MimeMessage(session); 
     try { 
      System.out.println("before sending"); 
      message.setFrom(new InternetAddress(GMAIL_USERNAME)); 
      message.addRecipients(Message.RecipientType.TO, 
        InternetAddress.parse(GMAIL_USERNAME)); 
      message.setSubject("My First Email Attempt from Java"); 
      message.setText("Hi, This mail came from Java Application."); 
      message.setRecipients(Message.RecipientType.TO, 
        InternetAddress.parse(GMAIL_USERNAME)); 
      Transport transport = session.getTransport("smtp"); 
      System.out.println("Got Transport" + transport); 
      transport.connect(SMTP_HOST, GMAIL_USERNAME, GMAIL_PASSWORD); 
      transport.sendMessage(message, message.getAllRecipients()); 
      System.out.println("message Object : " + message); 
      System.out.println("Email Sent Successfully"); 
     } catch (AddressException e) { 
      // TODO Auto-generated catch block 
      e.printStackTrace(); 
     } catch (MessagingException e) { 
      // TODO Auto-generated catch block 
      e.printStackTrace(); 
     } 
    } 
} 

Answer 5

import java.util.Properties; 

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

public class MessageSender { 

    public static void sendHardCoded() throws AddressException, MessagingException { 
     String to = "a@a.info"; 
     final String from = "b@gmail.com"; 

     Properties properties = new Properties(); 
     properties.put("mail.smtp.starttls.enable", "true"); 
     properties.put("mail.smtp.auth", "true"); 
     properties.put("mail.smtp.host", "smtp.gmail.com"); 
     properties.put("mail.smtp.port", "587"); 

     Session session = Session.getInstance(properties, 
       new javax.mail.Authenticator() { 
        protected PasswordAuthentication getPasswordAuthentication() { 
         return new PasswordAuthentication(from, "BeNice"); 
        } 
       }); 

     MimeMessage message = new MimeMessage(session); 
     message.setFrom(new InternetAddress(from)); 
     message.addRecipient(Message.RecipientType.TO, new InternetAddress(to)); 
     message.setSubject("Hello"); 
     message.setText("What's up?"); 

     Transport.send(message); 
    } 

}