我正在閱讀gmail.com的電子郵件。我看過一些郵件的成功,但一段時間後,我得到這個,郵件JAVA中的讀取錯誤
java.lang.ClassCastException:
javax.mail.internet.MimeMultipart cannot be cast to java.lang.String
at emailIngestion.EmailIngestion.check(EmailIngestion.java:66)
at emailIngestion.EmailIngestion.main(EmailIngestion.java:106).
其實我的要求是存儲內容到一個變量,然後將其存放在數組列表中,然後再寫入到一個文件...我已經使用這個代碼實現了它,所以如果有更好的想法,請與我分享。
public class EmailIngestion {
static ArrayList<EmailModel> contentList=new ArrayList<EmailModel>();
static ArrayList<EmailModel> metaDataList= new ArrayList<EmailModel>();
public static void check(String host, String storeType, String user,
String password) throws IOException
{
FileWriter fw= new FileWriter("C:\\Users\\Admin\\Desktop\\murtaza_metadata.csv",true);
FileWriter fw1= new FileWriter("C:\\Users\\Admin\\Desktop\\murtaza_content.txt",true);
try {
//create properties field
Properties properties = new Properties();
properties.put("mail.pop3.host", host);
properties.put("mail.pop3.port", "995");
properties.put("mail.pop3.starttls.enable", "true");
Session emailSession = Session.getDefaultInstance(properties);
Store store = emailSession.getStore("pop3s");
store.connect(host, user, password);
Folder emailFolder = store.getFolder("INBOX");
emailFolder.open(Folder.READ_ONLY);
Message[] messages = emailFolder.getMessages();
int emailNumber;
String mailContent = null,from = null,to = null,mailContentType = null,subject = null;
Date recievedDate= new Date();
System.out.println("messages.length---" + messages.length);
for (int i = 0, n = messages.length; i < n; i++) {
Message message = messages[i];
System.out.println("Subject is"+message.getSubject());
subject = message.getSubject();
from = message.getFrom()[0].toString();
mailContentType=message.getContentType();
recievedDate=message.getSentDate();
to=InternetAddress.toString(message.getRecipients(Message.RecipientType.TO));
emailNumber=message.getMessageNumber();
metaDataList.add(new EmailModel(from, to, subject, mailContentType, recievedDate,emailNumber));
fw.write(emailNumber+"\001"+from+"\001"+subject+"\001"+recievedDate+mailContentType+"\001"+" \n");
fw.flush();
if(message.isMimeType("multipart/*")){
Multipart multipart = (Multipart) message.getContent();
for (int x = 0; x < multipart.getCount(); x++) {
BodyPart bodyPart = multipart.getBodyPart(x);
mailContent=(String) bodyPart.getContent();
System.out.println(mailContent);
}
}
else{
mailContent=(String) message.getContent();
System.out.println(message.getContent());
}
contentList.add(new EmailModel(mailContent, emailNumber));
fw1.write(emailNumber+","+mailContent+"\n");
}
emailFolder.close(false);
store.close();
} catch (NoSuchProviderException e) {
e.printStackTrace();
} catch (MessagingException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
}
}
public static void main(String[] args) throws IOException {
String host = "pop.gmail.com";// change accordingly
String mailStoreType = "pop3";
String username = "[email protected]";// change accordingly
String password = "******";// change accordingly
check(host, mailStoreType, username, password);
}
}
在此先感謝
日誌不確定。您的服務似乎在「傳遞」和「失敗」之間波動的事實可能表明存在資源瓶頸。有趣的是,還可以通過DEBUG級別日誌來查看目錄日誌。 –
@FrankLegler感謝您的好評。我在哪裏可以找到調試級別日誌? –
您可以更改Vora Manager UI中不同Vora服務的日誌級別。 –