我使用以下代码从Gmail下载邮件。
import java.io.BufferedInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.Date;
import java.util.Properties;
import javax.mail.Address;
import javax.mail.BodyPart;
import javax.mail.FetchProfile;
import javax.mail.Flags;
import javax.mail.Folder;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.Multipart;
import javax.mail.Part;
import javax.mail.Session;
import javax.mail.Store;
import javax.mail.search.FlagTerm;
import org.openqa.selenium.WebDriver;
public class MailReader {
WebDriver driver;
Folder inbox;
String m;
String gmailID = "xyz@gmail.com";
String gmailPass = "xyz";
String storeMessage;
public MailReader()
{
}
public String readMail() {
System.out.println("Inside readMail()...");
final String SSL_FACTORY = "javax.net.ssl.SSLSocketFactory";
/* Set the mail properties */
Properties props = System.getProperties();
// Set manual Properties
props.setProperty("mail.pop3.socketFactory.class", SSL_FACTORY);
props.setProperty("mail.pop3.socketFactory.fallback", "false");
props.setProperty("mail.pop3.port", "995");
props.setProperty("mail.pop3.socketFactory.port", "995");
props.put("mail.pop3.host", "pop.gmail.com");
try
{
/* Create the session and get the store for read the mail. */
Session session = Session.getDefaultInstance(
System.getProperties(), null);
Store store = session.getStore("pop3");
store.connect("pop.gmail.com", 995, gmailID,
gmailPass);
/* Mention the folder name which you want to read. */
// inbox = store.getDefaultFolder();
// inbox = inbox.getFolder("INBOX");
inbox = store.getFolder("INBOX");
/* Open the inbox using store. */
inbox.open(Folder.READ_ONLY);
/* Get the messages which is unread in the Inbox */
Message messages[] = inbox.search(new FlagTerm(new Flags(
Flags.Flag.SEEN), false));
System.out.println("No. of Unread Messages : " + messages.length);
/* Use a suitable FetchProfile */
FetchProfile fp = new FetchProfile();
fp.add(FetchProfile.Item.ENVELOPE);
fp.add(FetchProfile.Item.CONTENT_INFO);
inbox.fetch(messages, fp);
try
{
m = printAllMessages(messages);
inbox.close(true);
store.close();
}
catch (Exception ex)
{
System.out.println("Exception arise at the time of read mail");
ex.printStackTrace();
}
}
catch (MessagingException e)
{
System.out.println("Exception while connecting to server: "
+ e.getLocalizedMessage());
e.printStackTrace();
System.exit(2);
}
return m;
}
public String printAllMessages(Message[] msgs) throws Exception
{
String s = null;
for (int i = 0; i < msgs.length; i++)
{
//System.out.println("MESSAGE #" + (i + 1) + ":");
s = printEnvelope(msgs[i]);
}
return s;
}
public String printEnvelope(Message message) throws Exception
{
Address[] a;
// FROM
if ((a = message.getFrom()) != null) {
for (int j = 0; j < a.length; j++) {
System.out.println("FROM: " + a[j].toString());
}
}
// TO
if ((a = message.getRecipients(Message.RecipientType.TO)) != null) {
for (int j = 0; j < a.length; j++) {
System.out.println("TO: " + a[j].toString());
}
}
String subject = message.getSubject();
Date receivedDate = message.getReceivedDate();
Date sentDate = message.getSentDate(); // receivedDate is returning
// null. So used getSentDate()
String content = message.getContent().toString();
System.out.println("Subject : " + subject);
if (receivedDate != null) {
System.out.println("Received Date : " + receivedDate.toString());
}
System.out.println("Sent Date : " + sentDate.toString());
System.out.println("Content : " + content);
return(getContent(message));
}
public String getContent(Message msg)
{
try {
String contentType = msg.getContentType();
System.out.println("Content Type : " + contentType);
Multipart mp = (Multipart) msg.getContent();
BodyPart bp = mp.getBodyPart(0);
int count = mp.getCount();
for (int i = 0; i < count; i++) {
String s = getText(mp.getBodyPart(i));
if(i == 1) {
return s;
}
//dumpPart(mp.getBodyPar((i));
}
} catch (Exception ex) {
System.out.println("Exception arise at get Content");
ex.printStackTrace();
}
return m;
}
/*
public void dumpPart(Part p) throws Exception {
// Dump input stream ..
InputStream is = p.getInputStream();
// If "is" is not already buffered, wrap a BufferedInputStream
// around it.
if (!(is instanceof BufferedInputStream)) {
is = new BufferedInputStream(is);
}
int c;
System.out.println("Message : ");
while ((c = is.read()) != -1) {
System.out.write(c);
}
}*/
boolean textIsHtml = false;
/**
* Return the primary text content of the message.
*/
public String getText(Part p) throws
MessagingException, IOException {
if (p.isMimeType("text/*")) {
String s = (String)p.getContent();
textIsHtml = p.isMimeType("text/html");
return s;
}
if (p.isMimeType("multipart/alternative")) {
// prefer html text over plain text
Multipart mp = (Multipart)p.getContent();
String text = null;
for (int i = 0; i < mp.getCount(); i++) {
Part bp = mp.getBodyPart(i);
if (bp.isMimeType("text/plain")) {
if (text == null)
text = getText(bp);
continue;
} else if (bp.isMimeType("text/html")) {
String s = getText(bp);
if (s != null)
return s;
} else {
return getText(bp);
}
}
return text;
} else if (p.isMimeType("multipart/*")) {
Multipart mp = (Multipart)p.getContent();
for (int i = 0; i < mp.getCount(); i++) {
String s = getText(mp.getBodyPart(i));
if (s != null)
return s;
}
}
return null;
}
}
我想修改代码，以便：
如何做到这一点？
谢谢！
答案 0 :(得分：1)
最近10条消息是INBOX中的最后10条消息。
但其中一些可以被阅读，其中一些可能被删除。要查找10条最近未读的消息，您需要使用FlagTerm来搜索SEEN标志为false的消息。您可能希望使用AndTerm来查找DELETED标志也为假的消息。
请注意，Folder.search并非下载任何消息，它只会告诉您哪些消息匹配。然后，您可以查看这些消息的最后10条，并执行您需要执行的任何操作，以便下载＆＃34;它们。
希望这足以让你开始。如果您仍然无法使用它，请向我们展示您正在使用的代码以及您将获得的结果。