我正在尝试与我公司的Exchange Server生成连接，并从中检索一些电子邮件。我正在使用我从以下页面http://www.vipan.com/htdocs/javamail.html获取的代码，并且我能够连接，但是我收到以下错误：
import java.util.*;
import java.io.*;
import javax.mail.*;
import javax.mail.internet.*;
import javax.mail.search.*;
import javax.activation.*;
public class FetchMailUsage {
public static void main(String[] args) {
// SUBSTITUTE YOUR ISP's POP3 SERVER HERE!!!
String host = "pop.yourisp.net";
// SUBSTITUTE YOUR USERNAME AND PASSWORD TO ACCESS E-MAIL HERE!!!
String user = "your_username";
String password = "your_password";
// SUBSTITUTE YOUR SUBJECT SUBSTRING TO SEARCH HERE!!!
String subjectSubstringToSearch = "Test E-Mail through Java";
Properties props = new Properties();
props.put("mail.smtp.host", host);
// To see what is going on behind the scene
props.put("mail.debug", "true");
props.put("mail.imap.port", "25");
// Get a session. Use a blank Properties object.
Session session = Session.getInstance(props, null);
try {
// Get a Store object
Store store = session.getStore("pop3");
store.connect(host, user, password);
// Get "INBOX"
Folder fldr = store.getFolder("INBOX");
fldr.open(Folder.READ_WRITE);
int count = fldr.getMessageCount();
System.out.println(count + " total messages");
// Message numebers start at 1
for(int i = 1; i <= count; i++) {
// Get a message by its sequence number
Message m = fldr.getMessage(i);
// Get some headers
Date date = m.getSentDate();
Address [] from = m.getFrom();
String subj = m.getSubject();
String mimeType = m.getContentType();
System.out.println(date + "\t" + from[0] + "\t" +
subj + "\t" + mimeType);
}
// Search for e-mails by some subject substring
String pattern = subjectSubstringToSearch;
SubjectTerm st = new SubjectTerm(pattern);
// Get some message references
Message [] found = fldr.search(st);
System.out.println(found.length +
" messages matched Subject pattern \"" +
pattern + "\"");
for (int i = 0; i < found.length; i++) {
Message m = found[i];
// Get some headers
Date date = m.getSentDate();
Address [] from = m.getFrom();
String subj = m.getSubject();
String mimeType = m.getContentType();
System.out.println(date + "\t" + from[0] + "\t" +
subj + "\t" + mimeType);
Object o = m.getContent();
if (o instanceof String) {
System.out.println("**This is a String Message**");
System.out.println((String)o);
}
else if (o instanceof Multipart) {
System.out.print("**This is a Multipart Message. ");
Multipart mp = (Multipart)o;
int count3 = mp.getCount();
System.out.println("It has " + count3 +
" BodyParts in it**");
for (int j = 0; j < count3; j++) {
// Part are numbered starting at 0
BodyPart b = mp.getBodyPart(j);
String mimeType2 = b.getContentType();
System.out.println( "BodyPart " + (j + 1) +
" is of MimeType " + mimeType);
Object o2 = b.getContent();
if (o2 instanceof String) {
System.out.println("**This is a String BodyPart**");
System.out.println((String)o2);
}
else if (o2 instanceof Multipart) {
System.out.print(
"**This BodyPart is a nested Multipart. ");
Multipart mp2 = (Multipart)o2;
int count2 = mp2.getCount();
System.out.println("It has " + count2 +
"further BodyParts in it**");
}
else if (o2 instanceof InputStream) {
System.out.println(
"**This is an InputStream BodyPart**");
}
} //End of for
}
else if (o instanceof InputStream) {
System.out.println("**This is an InputStream message**");
InputStream is = (InputStream)o;
// Assumes character content (not binary images)
int c;
while ((c = is.read()) != -1) {
System.out.write(c);
}
}
// Uncomment to set "delete" flag on the message
//m.setFlag(Flags.Flag.DELETED,true);
} //End of for
// "true" actually deletes flagged messages from folder
fldr.close(true);
store.close();
}
catch (MessagingException mex) {
// Prints all nested (chained) exceptions as well
mex.printStackTrace();
}
catch (IOException ioex) {
ioex.printStackTrace();
}
}
} //End of class
错误的痕迹如下：
DEBUG: JavaMail version 1.4.4
DEBUG: URL jar:file:/C:/Documents%20and%20Settings/me/My%20Documents/QA/Automation/javamail-1.4.4/lib/smtp.jar!/META-INF/javamail.providers
DEBUG: successfully loaded resource: jar:file:/C:/Documents%20and%20Settings/me/My%20Documents/QA/Automation/javamail-1.4.4/lib/smtp.jar!/META-INF/javamail.providers
DEBUG: URL jar:file:/C:/Documents%20and%20Settings/me/My%20Documents/QA/Automation/javamail-1.4.4/lib/imap.jar!/META-INF/javamail.providers
DEBUG: successfully loaded resource: jar:file:/C:/Documents%20and%20Settings/me/My%20Documents/QA/Automation/javamail-1.4.4/lib/imap.jar!/META-INF/javamail.providers
DEBUG: URL jar:file:/C:/Documents%20and%20Settings/me/My%20Documents/QA/Automation/javamail-1.4.4/lib/pop3.jar!/META-INF/javamail.providers
DEBUG: successfully loaded resource: jar:file:/C:/Documents%20and%20Settings/me/My%20Documents/QA/Automation/javamail-1.4.4/lib/pop3.jar!/META-INF/javamail.providers
DEBUG: successfully loaded resource: /META-INF/javamail.default.providers
DEBUG: Tables of loaded providers
DEBUG: Providers Listed By Class Name: {com.sun.mail.smtp.SMTPSSLTransport=javax.mail.Provider[TRANSPORT,smtps,com.sun.mail.smtp.SMTPSSLTransport,Sun Microsystems, Inc], com.sun.mail.imap.IMAPSSLStore=javax.mail.Provider[STORE,imaps,com.sun.mail.imap.IMAPSSLStore,Sun Microsystems, Inc], com.sun.mail.smtp.SMTPTransport=javax.mail.Provider[TRANSPORT,smtp,com.sun.mail.smtp.SMTPTransport,Sun Microsystems, Inc], com.sun.mail.pop3.POP3SSLStore=javax.mail.Provider[STORE,pop3s,com.sun.mail.pop3.POP3SSLStore,Sun Microsystems, Inc], com.sun.mail.imap.IMAPStore=javax.mail.Provider[STORE,imap,com.sun.mail.imap.IMAPStore,Sun Microsystems, Inc], com.sun.mail.pop3.POP3Store=javax.mail.Provider[STORE,pop3,com.sun.mail.pop3.POP3Store,Sun Microsystems, Inc]}
DEBUG: Providers Listed By Protocol: {imaps=javax.mail.Provider[STORE,imaps,com.sun.mail.imap.IMAPSSLStore,Sun Microsystems, Inc], imap=javax.mail.Provider[STORE,imap,com.sun.mail.imap.IMAPStore,Sun Microsystems, Inc], smtps=javax.mail.Provider[TRANSPORT,smtps,com.sun.mail.smtp.SMTPSSLTransport,Sun Microsystems, Inc], pop3=javax.mail.Provider[STORE,pop3,com.sun.mail.pop3.POP3Store,Sun Microsy stems, Inc], pop3s=javax.mail.Provider[STORE,pop3s,com.sun.mail.pop3.POP3SSLStore,Sun Microsystems, Inc], smtp=javax.mail.Provider[TRANSPORT,smtp,com.sun.mail.smtp.SMTPTransport,Sun Microsystems, Inc]}
DEBUG: successfully loaded resource: /META-INF/javamail.default.address.map
DEBUG: URL jar:file:/C:/Documents%20and%20Settings/me/My%20Documents/QA/Automation/javamail-1.4.4/lib/smtp.jar!/META-INF/javamail.address.map
DEBUG: successfully loaded resource: jar:file:/C:/Documents%20and%20Settings/me/My%20Documents/QA/Automation/javamail-1.4.4/lib/smtp.jar!/META-INF/javamail.address.map
DEBUG: getProvider() returning javax.mail.Provider[STORE,imap,com.sun.mail.imap.IMAPStore,Sun Microsystems, Inc]
DEBUG: mail.imap.fetchsize: 16384
DEBUG: mail.imap.statuscachetimeout: 1000
DEBUG: mail.imap.appendbuffersize: -1
DEBUG: mail.imap.minidletime: 10
DEBUG: trying to connect to host "167.107.252.184", port 25, isSSL false
220 SERVER Microsoft ESMTP MAIL Service, Version: 6.0.3790.4675 ready at Tue, 13 Sep 2011 15:38:38 -0500
javax.mail.MessagingException: 220 SERVER Microsoft ESMTP MAIL Service, Version: 6.0.3790.4675 ready at Tue, 13 Sep 2011 15:38:38 -0500 ;
nested exception is:
com.sun.mail.iap.ConnectionException: 220 SERVER Microsoft ESMTP MAIL Service, Version: 6.0.3790.4675 ready at Tue, 13 Sep 2011 15:38:38 -0500
at com.sun.mail.imap.IMAPStore.protocolConnect(IMAPStore.java:663)
at javax.mail.Service.connect(Service.java:295)
at javax.mail.Service.connect(Service.java:176)
at com.test.ewacs.test.pageobjects.utilities.FetchMailUsage.main(FetchMailUsage.java:38)
Caused by: com.sun.mail.iap.ConnectionException: 220 SERVER Microsoft ESMTP MAIL Service, Version: 6.0.3790.4675 ready at Tue, 13 Sep 2011 15:38:38 -0500
at com.sun.mail.imap.protocol.IMAPProtocol.processGreeting(IMAPProtocol.java:236)
at com.sun.mail.iap.Protocol.<init>(Protocol.java:120)
at com.sun.mail.imap.protocol.IMAPProtocol.<init>(IMAPProtocol.java:110)
at com.sun.mail.imap.IMAPStore.protocolConnect(IMAPStore.java:632)
... 3 more
答案 0 :(得分：3)
我有一段时间没有涉及电子邮件，但我认为您的问题是您正在连接到SMTP端口（25），但您使用的协议是IMAP。
看看： http://www.hascode.com/2010/04/snippet-simple-one-minute-imap-client/