Problem in receiving e-mail (Javamail)
Please help I found the error of "no provider for pop3" when I run the following program in my office (using proxy to internet but the pop3 a/c is work for my outlook to rcv e-mail). However, that's no error prompt out when running at home but nothing to display even there are two msgs in my inbox:
static String host = "pop.account.com";
static String username = "myuser";
static String password = "mypwd";
public static void main(String[] args) {
Properties props = new Properties();
Session session = Session.getDefaultInstance(props, null);
session.setDebug(debug);
Store store = session.getStore("pop3");
store.connect(host, username, password);
Folder folder = store.getFolder("INBOX");
folder.open(Folder.READ_ONLY);
Message message[] = folder.getMessages();
for (int i=0, n=message.length; i<n; i++) {
System.out.println(i + ": " + message.getFrom()[0] + "\t" + message.getSubject());
}
folder.close(false);
store.close();
.
.
.
Thanks in advance!
iSam
xml168@sinatown.com
>
[1148 byte] By [
isam_hk] at [2007-9-26 3:12:04]
The only time I got the error "no provider for pop3" was when I did not have the pop provider jar in my classpath. Make sure you have %JAVAMAIL_HOME%\pop3.jar in your classpath.
Yes, the error is not found after i hv added the file pop3.jar classpath. But still hv two questions:
1. j2ee installation guide said no need to add the javamail classpath when added j2ee.jar. but howcome now i hv to add pop3.jar to the classpath?
2. there has no msg display even my mail box has some msgs (i checked by my Outlook express). below is the debug screen:
DEBUG: getProvider() returning javax.mail.Provider[STORE,pop3,com.sun.mail.pop3
POP3Store,Sun Microsy stems, Inc]
POP3: connecting to host "pop.myaccount.com", port 110
S: +OK incore system mail POP3 Server ready
C: USER xxx
S: +OK core mail
C: PASS yyy
S: +OK 0 message(s) [0 byte(s)]
C: STAT
S: +OK 0 0
C: QUIT
S: +OK core mail
Thanks!
iSam
> 2. there has no msg display even my mail box has some
> msgs (i checked by my Outlook express). below is the
Some Mailservers don't allow their users to start multiple Sessions at the same time. Or someting like that.
When i opened my JavaMail-App and open a Connection to a Mailserver, then i'm going to logging me in at the Mailserver with my Internet Browser. The Mailserver writes in the Browser, there are 0 new Messages and 0 read Messages. In the truth there are multiple messages. The Problem is: The Mailserver don't allow multiple Sessions. When i close the Connection in my App, I'll see all the Messages in the Browser.
Your problem(?): Perhaps Outlook Express holds the Connection and the Mailserver say to your JavaMail-App, that there are 0 Messages.
In my case, the App threw an Exception like...
javax.mail.MessagingException: Open failed;
nested exception is:
java.io.EOFException: mailbox in use - is another session active ?
...if i would open a second Connection to the Mailserver.
I think, the result of your second question to the Mailserver depends on its Configuration.
Raphael
> debug screen:
>
> DEBUG: getProvider() returning
> javax.mail.Provider[STORE,pop3,com.sun.mail.pop3
> POP3Store,Sun Microsy stems, Inc]
> POP3: connecting to host "pop.myaccount.com", port
> 110
> S: +OK incore system mail POP3 Server ready
> C: USER xxx
> S: +OK core mail
> C: PASS yyy
> S: +OK 0 message(s) [0 byte(s)]
> C: STAT
> S: +OK 0 0
> C: QUIT
> S: +OK core mail
>
>
> Thanks!
>
> iSam
rawul at 2007-6-29 11:20:07 >
Hi Raphael,do u hv any idea to fix the problem because I dont know the config of mailserver very well.Thanks!
Hi
In the Connection-Routine, of your JavaMail-App, I would catch a java.io.EOFException. Use something like that....
try{
....//Connection....
Message[] messages.... ;//get the Messages-Array
if(messages.length == 0){
System.out.println("There are 0 Messages in your Mailbox. \n\nOr do you have another Session connected? \n If yes, close this, and retry!");
}
catch(java.io.EOFException ex){
String exText = ex.getLocalizedMessage();
if(exText.indexOf("mailbox in use") != -1){ System.out.println("Mailbox is in use. You can't open another Session.");
}
catch(MessagingException me){
//...
}
The Code catches both bad cases (can't open the mailbox; the Mailserver says there are 0 Messages, but there are multiple). But its not a very nice solution. Check this...
Raphael
rawul at 2007-6-29 11:20:07 >
> Please help I found the error of "no provider for
> pop3" when I run the following program in my office
> (using proxy to internet but the pop3 a/c is work for
> my outlook to rcv e-mail). However, that's no error
> prompt out when running at home but nothing to display
> even there are two msgs in my inbox:
>
> static String host = "pop.account.com";
> static String username = "myuser";
> static String password = "mypwd";
>
> public static void main(String[] args) {
>
> Properties props = new Properties();
> Session session = Session.getDefaultInstance(props,
> null);
> session.setDebug(debug);
>
> Store store = session.getStore("pop3");
> store.connect(host, username, password);
> Folder folder = store.getFolder("INBOX");
> folder.open(Folder.READ_ONLY);
> Message message[] = folder.getMessages();
> for (int i=0, n=message.length; i<n; i++) {
> System.out.println(i + ": " + message.getFrom()[0] +
> "\t" + message.getSubject());
> }
>
> folder.close(false);
> store.close();
> .
> .
> .
>
> Thanks in advance!
>
> iSam
> xml168@sinatown.com
Try including the pop3.jar file ahead of the j2ee.jar file in the classpath... Seems like the pop provider included in the j2ee.jar is outdated... Good Luck :)
Hi! Have tried all the suggestions but still can't display the msgs which I seem in Outlook express even I tried at home. Does anyone hv this experience or will send the code to here for discuss together.
Anyway, thanks for all yr help & looking for further suggestion!
iSam
xml168@sinatown.com
The best demonstration code that I have seen for reading email using POP3, or for that matter demo code for most of what you can do with Javamail, is the one that comes with Javamail download. You can find it in %JAVAMAIL_HOME%\demo[\b]
> Please help I found the error of "no provider for
> pop3" when I run the following program in my office
> (using proxy to internet but the pop3 a/c is work for
> my outlook to rcv e-mail). However, that's no error
> prompt out when running at home but nothing to display
> even there are two msgs in my inbox:
>
> static String host = "pop.account.com";
> static String username = "myuser";
> static String password = "mypwd";
>
> public static void main(String[] args) {
>
> Properties props = new Properties();
> Session session = Session.getDefaultInstance(props,
> null);
> session.setDebug(debug);
>
> Store store = session.getStore("pop3");
> store.connect(host, username, password);
> Folder folder = store.getFolder("INBOX");
> folder.open(Folder.READ_ONLY);
> Message message[] = folder.getMessages();
> for (int i=0, n=message.length; i<n; i++) {
> System.out.println(i + ": " + message.getFrom()[0] +
> "\t" + message.getSubject());
> }
>
> folder.close(false);
> store.close();
> .
> .
> .
>
> Thanks in advance!
>
> iSam
> xml168@sinatown.com
Do you have the activation.jar in your Classpath? Using the JavaMail API requires the JavaBeans Activation Framework JAF (Download At: http://java.sun.com/products/javabeans/glasgow/jaf.html). I think the error of "no provider for pop3" depends on the missing of the JAF. I saw no mistake in the code. Check it...
Raphael
rawul at 2007-6-29 11:20:07 >
I forgot:Do you wrote this at the top of your code?import javax.mail.*; //already done, I guess...import javax.activation.*;//for the JAF
rawul at 2007-6-29 11:20:08 >
hi there!
i receive an error while fetching mail as
Exception in thread "main" java.lang.NoClassDefFoundError: com/sun/mail/util/SharedByteArrayInputStream
at com.sun.mail.pop3.Protocol.multilineCommand(Protocol.java:284)
at com.sun.mail.pop3.Protocol.top(Protocol.java:179)
at com.sun.mail.pop3.POP3Message.loadHeaders(POP3Message.java:392)
at com.sun.mail.pop3.POP3Message.getSize(POP3Message.java:89)
at msgshow.dumpPart(msgshow.java:221)
at msgshow.main(msgshow.java:200)
can any one help me
my mail id is ssbreddy@yahoo.com
thanks in advance
sudarshan
shony at 2007-6-29 11:20:08 >
Hv tried to add pop3.jar in classpath, the error 'no provider' is not found. But the msg still cant be shown which I can see in my Outlook prog. I think the better solution is post my full testing prog. to here & let u try & run:
import java.io.*;
import java.util.*;
import java.net.InetAddress;
import javax.mail.*;
import javax.mail.internet.*;
import javax.activation.*;
public class RecvMail {
static String host = "pop.myaccount.com";
static String username = "myuser";
static String password = "mypwd";
public static void main(String[] args) {
// Create empty properties
Properties props = new Properties();
Session session = Session.getDefaultInstance(props, null);
session.setDebug(true);
try {
Store store = session.getStore("pop3");
store.connect(host, username, password);
Folder folder = store.getFolder("Inbox");
folder.open(Folder.READ_ONLY);
Message message[] = folder.getMessages();
System.out.println(message.length);
for (int i=0, n=message.length; i<n; i++) {
System.out.println(i + ": " + message.getFrom()[0] + "\t" + message.getSubject());
}
folder.close(false);
store.close();
} catch (MessagingException mex) {
mex.printStackTrace();
Exception ex = null;
if ( (ex=mex.getNextException()) != null ) {
ex.printStackTrace();
}
}
}
}
PLs let me know what's yr result.
THanks!
iSam
>
I tried your program. It works just fine other than the fact that I had to fix a syntax error to compile it.
I change the line...
System.out.println(i + ": " + message.getFrom()[0] + "\t" + message.getSubject());
to
System.out.println(i + ": " + message[i].getFrom() + "\t" + message[i].getSubject());
After I fixed the syntax error, I was able to run it against my pop mail server and see all messages both old and new.
Yes, now can show the number of new mails in my mail box but cant show the sunject as the following error:
Exception in thread "main" java.lang.NoClassDefFoundError: com/sun/mail/util/Sha
redByteArrayInputStream
at com.sun.mail.pop3.Protocol.multilineCommand(Protocol.java:284)
at com.sun.mail.pop3.Protocol.top(Protocol.java:179)
at com.sun.mail.pop3.POP3Message.loadHeaders(POP3Message.java:392)
at com.sun.mail.pop3.POP3Message.getHeader(POP3Message.java:217) at javax.mail.internet.MimeMessage.getAddressHeader(MimeMessage.java:432)
at javax.mail.internet.MimeMessage.getFrom(MimeMessage.java:197)
at RecvMail.main(RecvMail.java:39)
Hi
Ive successfully compiled ur code after changing the line
System.out.println(i + ": " + message.getFrom() + "\t" + message.getSubject());
But, the following error comes...
DEBUG: getProvider() returning javax.mail.Provider[STORE,pop3,com.sun.mail.pop3.
POP3Store,Sun Microsy stems, Inc]
POP3: connecting to host "pop.mail.yahoo.com", port 110
javax.mail.MessagingException: Connect failed;
nested exception is:
java.net.UnknownHostException: pop.mail.yahoo.com
at com.sun.mail.pop3.POP3Store.protocolConnect(POP3Store.java:106)
at javax.mail.Service.connect(Service.java:234)
at javax.mail.Service.connect(Service.java:135)
at RMail.main(RMail.java:24)
java.net.UnknownHostException: pop.mail.yahoo.com
at java.net.InetAddress.getAllByName0(InetAddress.java:571)
at java.net.InetAddress.getAllByName0(InetAddress.java:540)
at java.net.InetAddress.getByName(InetAddress.java:449)
at java.net.Socket.<init>(Socket.java:100)
at com.sun.mail.util.SocketFetcher.getSocket0(SocketFetcher.java:131)
at com.sun.mail.util.SocketFetcher.getSocket(SocketFetcher.java:113)
at com.sun.mail.pop3.Protocol.<init>(Protocol.java:61)
at com.sun.mail.pop3.POP3Store.getPort(POP3Store.java:159)
at com.sun.mail.pop3.POP3Store.protocolConnect(POP3Store.java:102)
at javax.mail.Service.connect(Service.java:234)
at javax.mail.Service.connect(Service.java:135)
at RMail.main(RMail.java:24)
Im always on Internet, but we use proxy to connect to the Network NT Server in which DSL connection is there. So, please tell me how to connect thru proxy. Also, I need to connect from a JSP page. Not from a java file. If uve code for JSP, can u give that please.
Yours,
Jini Shans
Hi,Actually I need to retrive the body of new messages automatically when a new mail comes, and update in my Oracle DB.Yours,Jini Shans
hi
i have sucessfully write the receiving mail using javamail with pop3 protocol.using run the Jakarta Tomcat 4/1.2.27 server.
while run the application the following error comes...
java.lang.NoSuchMethodError
at com.sun.mail.pop3.POP3Store.getPort(POP3Store.java:160)
at com.sun.mail.pop3.POP3Store.protocolConnect(POP3Store.java:102)
at javax.mail.Service.connect(Service.java:227)
at javax.mail.Service.connect(Service.java:131)
at vinoth.MailAccessor.handleMessages(MailAccessor.java:79)
at vinoth.MailAccessor.doGet(MailAccessor.java:30)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:256)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2416)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:171)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:172)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:223)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:601)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:392)
at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:565)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:619)
at java.lang.Thread.run(Thread.java:479)
--
