无法使用Android中的JavaMail API删除任何电子邮件

Question

我一直在尝试删除使用Android中的JavaMail API的电子邮件。我已经能够在我的应用程序中获取并查看电子邮件。虽然无法删除任何电子邮件，但没有任何错误或任何可能导致解决的警告。这是我到目前为止所尝试的。非常感谢帮助。

import java.io.BufferedReader; 
import java.io.IOException; 
import java.io.InputStreamReader; 
import java.util.Properties; 

import javax.mail.Flags; 
import javax.mail.Folder; 
import javax.mail.Message; 
import javax.mail.MessagingException; 
import javax.mail.NoSuchProviderException; 
import javax.mail.Session; 
import javax.mail.Store; 

import android.content.Intent; 
import android.os.AsyncTask; 

import com.emazdoor.encmail.customlistview.MainList; 
import com.sun.mail.imap.IMAPFolder; 

public class DeleteEmail { 

    static Message[] messages; 

    public static void delete(final int number) 

    { 
     new AsyncTask<Void, Void, Void>() { 
      @Override 
      public Void doInBackground(Void... voids) { 

       try { 

        int num = number; 
        Store store = null; 
        Properties props = System.getProperties(); 
        props.setProperty("mail.store.protocol", "imaps"); 

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

        store = session.getStore("imaps"); 
        store.connect("imap.googlemail.com", dumber.username, 
          dumber.password); 

        // create the folder object and open it 
        IMAPFolder emailFolder = (IMAPFolder) store.getFolder("INBOX"); 
        emailFolder.open(Folder.READ_WRITE); 

        // retrieve the messages from the folder in an array and 
        // print it 
        messages = emailFolder.getMessages(); 
        System.out.println("messages.length---" + messages.length); 
        for (int i = 0; i < 5; i++) { 
         Message message = messages[i]; 

        } 
        if (messages != null && messages.length > 0) 
         messages[817].setFlag(Flags.Flag.DELETED, true); 

        // expunges the folder to remove messages which are marked 
        // deleted 
        emailFolder.close(true); 
        store.close(); 

       } catch (NoSuchProviderException e) { 
        e.printStackTrace(); 
       } catch (MessagingException e) { 
        e.printStackTrace(); 
       } 
       return null; 
      } 

     }.execute(); 
    } 
} 

我做错了什么？ 我将在messages[variable].setFlag(Flags.Flag.DELETED, true);中使用变量，而不是硬编码值。

UPDATE 我设置setDebug(true)，这是我得到了什么......似乎一切都没有问题..

07-06 23:06:34.886: I/System.out(10749): DEBUG: setDebug: JavaMail version 1.4.1 
07-06 23:06:34.886: I/System.out(10749): DEBUG: getProvider() returning javax.mail.Provider[STORE,imaps,com.sun.mail.imap.IMAPSSLStore,Sun Microsystems, Inc.,1.4.1] 
07-06 23:06:34.886: I/System.out(10749): DEBUG: mail.imap.fetchsize: 16384 
07-06 23:06:36.896: I/System.out(10749): * OK Gimap ready for requests from 103.255.6.118 q11mb517503595ywb 
07-06 23:06:36.896: I/System.out(10749): A0 CAPABILITY 
07-06 23:06:37.251: I/System.out(10749): * CAPABILITY IMAP4rev1 UNSELECT IDLE NAMESPACE QUOTA ID XLIST CHILDREN X-GM-EXT-1 XYZZY SASL-IR AUTH=XOAUTH2 AUTH=PLAIN AUTH=PLAIN-CLIENTTOKEN AUTH=XOAUTH 
07-06 23:06:37.251: I/System.out(10749): A0 OK Thats all she wrote! q11mb517503595ywb 
07-06 23:06:37.256: I/System.out(10749): IMAP DEBUG: AUTH: XOAUTH2 
07-06 23:06:37.256: I/System.out(10749): IMAP DEBUG: AUTH: PLAIN 
07-06 23:06:37.256: I/System.out(10749): IMAP DEBUG: AUTH: PLAIN-CLIENTTOKEN 
07-06 23:06:37.261: I/System.out(10749): IMAP DEBUG: AUTH: XOAUTH 
07-06 23:06:37.261: I/System.out(10749): DEBUG: protocolConnect login, host=imap.googlemail.com, user=emazdoor@gmail.com , password=<non-null> 
07-06 23:06:37.266: I/System.out(10749): A1 AUTHENTICATE PLAIN 
07-06 23:06:37.571: I/System.out(10749): + 
07-06 23:06:37.601: I/System.out(10749): ZW1hemRvb3JAZ21haWwuY29tIABlbWF6ZG9vckBnbWFpbC5jb20gAGltYXNkdXJyYW5p 
07-06 23:06:38.236: I/System.out(10749): * CAPABILITY IMAP4rev1 UNSELECT IDLE NAMESPACE QUOTA ID XLIST CHILDREN X-GM-EXT-1 UIDPLUS COMPRESS=DEFLATE ENABLE MOVE CONDSTORE ESEARCH UTF8=ACCEPT 
07-06 23:06:38.256: I/System.out(10749): A1 OK emazdoor@gmail.com authenticated (Success) 
07-06 23:06:38.281: I/System.out(10749): A2 CAPABILITY 
07-06 23:06:38.696: I/System.out(10749): * CAPABILITY IMAP4rev1 UNSELECT IDLE NAMESPACE QUOTA ID XLIST CHILDREN X-GM-EXT-1 UIDPLUS COMPRESS=DEFLATE ENABLE MOVE CONDSTORE ESEARCH UTF8=ACCEPT 
07-06 23:06:38.701: I/System.out(10749): A2 OK Success 
07-06 23:06:38.716: I/System.out(10749): DEBUG: connection available -- size: 1 
07-06 23:06:38.721: I/System.out(10749): A3 SELECT INBOX 
07-06 23:06:39.191: I/System.out(10749): * FLAGS (\Answered \Flagged \Draft \Deleted \Seen $NotPhishing $Phishing) 
07-06 23:06:39.191: I/System.out(10749): * OK [PERMANENTFLAGS (\Answered \Flagged \Draft \Deleted \Seen $NotPhishing $Phishing \*)] Flags permitted. 
07-06 23:06:39.196: I/System.out(10749): * OK [UIDVALIDITY 651814458] UIDs valid. 
07-06 23:06:39.196: I/System.out(10749): * 814 EXISTS 
07-06 23:06:39.196: I/System.out(10749): * 0 RECENT 
07-06 23:06:39.196: I/System.out(10749): * OK [UIDNEXT 1771] Predicted next UID. 
07-06 23:06:39.201: I/System.out(10749): * OK [HIGHESTMODSEQ 101785] 
07-06 23:06:39.201: I/System.out(10749): A3 OK [READ-WRITE] INBOX selected. (Success) 
07-06 23:06:39.316: I/System.out(10749): messages.length---814 
07-06 23:06:39.316: I/System.out(10749): A4 STORE 3 +FLAGS (\Deleted) 
07-06 23:06:40.121: I/System.out(10749): * 3 FETCH (FLAGS (\Seen \Deleted)) 
07-06 23:06:40.126: I/System.out(10749): A4 OK Success 
07-06 23:06:40.156: I/System.out(10749): A5 EXPUNGE 
07-06 23:06:40.601: I/System.out(10749): * 3 EXPUNGE 
07-06 23:06:40.636: I/System.out(10749): * 813 EXISTS 
07-06 23:06:40.641: I/System.out(10749): A5 OK Success 
07-06 23:06:40.671: I/System.out(10749): A6 CLOSE 
07-06 23:06:41.081: I/System.out(10749): A6 OK Returned to authenticated state. (Success) 
07-06 23:06:41.116: I/System.out(10749): DEBUG: added an Authenticated connection -- size: 1 
07-06 23:06:41.121: I/System.out(10749): A7 LOGOUT 
07-06 23:06:41.531: I/System.out(10749): * BYE LOGOUT Requested 
07-06 23:06:41.551: I/System.out(10749): A7 OK 73 good day (Success) 
07-06 23:06:41.561: I/System.out(10749): DEBUG: IMAPStore connection dead 
07-06 23:06:41.561: I/System.out(10749): DEBUG: IMAPStore cleanup, force false 
07-06 23:06:41.566: I/System.out(10749): DEBUG: IMAPStore cleanup done 

Answer 1

继比尔·香农的评论我已经解决了我的问题。谢谢比尔！