How do I read a Email from the MS exchange server

Question

could any one tell me as to how i could read the mail from the exchange server and store it in a seperate folder.

Answer 1

I have an application which reads the mail from our mail server and then writes the body of the message into a file and then deletes the email anf those values are then read from that file and stored into the database .
Here is the code which pops the mail from the exchange server and then stores it into a file .
import javax.mail.*;
import com.sun.mail.pop3.*;
import javax.mail.internet.*;
import javax.activation.*;
import java.util.*;
* Title:
* Description:
* Copyright: Copyright (c) 2001
* Company:
* @author
* @version 1.0
public class SunMailConnection implements Runnable{
     boolean suspendFlag;
     ErrorLogWriter log = new ErrorLogWriter("SunMail.log");
     public SunMailConnection() {
          this.start() ;
     public void run(){
          try {
               int start = 1;int end = -1;
               String host = "cyde-cehh-exh1";//the local exchange server name AND DOESNT WORK IF U CONNECT TO EXT MAIL SERVER DIRECTLY
               //DUE TO SECURED AUTHORISATION
               //String host ="http://www.conergy-electronics.de";
               String username ="SunReader\\Sun\\saa";
               String password = "xxxxx";
               // Create empty properties
               Properties props = new Properties();
               props.put("mail.protocol.store","pop3");
               // Get session
               Session session = Session.getDefaultInstance(props, null);
               Provider[] p = session.getProviders();
               //for (int i=0;i<p.length;i++) System.out.println(p.getProtocol());
               // Get the store
               Store store = session.getStore("pop3");
               store.connect(host, username, password);
               // Get folder
               Folder folder = store.getFolder("INBOX");
               if (folder == null || !folder.exists()) {
                    //System.out.println("Invalid folder: " + folder.getName());
                    log.write("Invalid folder: " + folder.getName()) ;
                    System.exit(1);
               folder.open(Folder.READ_WRITE);
               //Get the number of Unread Messages
               int count = folder.getUnreadMessageCount();
               if (count == 0) { // No messages in the source folder
                    //System.out.println(folder.getName() + " is empty");
                    // Close folder, store and return
                    folder.close(false);
                    store.close();
                    return;
               if (end == -1)
                    end = count;
               // Get the message objects to copy
               log.write("Test");
               Message[] msgs = folder.getMessages(start, end);
               //System.out.println("Moving " + msgs.length + " messages");
               //log.write("Moving " + msgs.length + " messages") ;
               if (msgs.length != 0) {
                    //If there is any mail
                    //System.out.println(msgs.length );
                    //read mail from server into files
                    MoveMessageTo saveFile = new MoveMessageTo(msgs);
                    if(saveFile.createdFile=true){
                         folder.setFlags(msgs,new Flags(Flags.Flag.SEEN),true);
                         //delete flag set here to remove the email from INBOX
                         folder.setFlags(msgs, new Flags(Flags.Flag.DELETED), true);
                    //folder.expunge(); //removes messages marked as deleted
                    //check for deleting messages
                    for (int i = 0; i < msgs.length; i++) {
                         if (!msgs[i].isSet(Flags.Flag.DELETED))
                              log.write("Message # "+msgs[i]+" not deleted.");
                         //else System.out.println("Message "+i+"-is deleted") ;
               // Close connection
               folder.close(true);
               // dfolder.close(false);
               store.close();
               //this.start() ;
          }catch (Exception ex) {
               ex.printStackTrace() ;
          //this.t.start();
     public void start(){
          try {
               while(this!= null){
                    this.run() ;
                    Thread.sleep(15000);//every 15 seconds
          }catch (Exception ex) {
               ex.printStackTrace();
     public void exit(){
          this.exit();
          System.out.println("Exit");
     public static void main(String[] args) {
          SunMailConnection sunMail = new SunMailConnection();
This is to show the messages
import java.util.*;
import java.io.*;
import javax.mail.*;
import javax.mail.internet.*;
import javax.activation.*;
public class msgshow {
static String protocol;
static String host = null;
static String user = null;
static String password = null;
static String mbox = "INBOX";
static String url = null;
static int port = -1;
static boolean verbose = false;
static boolean debug = false;
static boolean showStructure = false;
static boolean showMessage = false;
public static void main(String argv[]) {
     int msgnum = -1;
     int optind;
     protocol = "pop3";
     host="cyde-cehh-exh1";
     user="SunReader\\Sun\\saa";
     password="xxxxxx";
     mbox="INBOX";
     /*for (optind = 0; optind < argv.length; optind++) {
     if (argv[optind].equals("-T")) {
          protocol = argv[++optind];
     } else if (argv[optind].equals("-H")) {
          host = argv[++optind];
     } else if (argv[optind].equals("-U")) {
          user = argv[++optind];
     } else if (argv[optind].equals("-P")) {
          password = argv[++optind];
     } else if (argv[optind].equals("-v")) {
          verbose = true;
     } else if (argv[optind].equals("-D")) {
          debug = true;
     } else if (argv[optind].equals("-f")) {
          mbox = argv[++optind];
     } else if (argv[optind].equals("-L")) {
          url = argv[++optind];
     } else if (argv[optind].equals("-p")) {
          port = Integer.parseInt(argv[++optind]);
     } else if (argv[optind].equals("-s")) {
          showStructure = true;
     } else if (argv[optind].equals("-m")) {
          showMessage = true;
     } else if (argv[optind].equals("--")) {
          optind++;
          break;
     } else if (argv[optind].startsWith("-")) {
          System.out.println(
"Usage: msgshow [-L url] [-T protocol] [-H host] [-p port] [-U user]");
          System.out.println(
"\t[-P password] [-f mailbox] [msgnum] [-v] [-D] [-s]");
          System.out.println(
"or msgshow -m [-v] [-D] [-s] < msg");
          System.exit(1);
     } else {
          break;
     try {
     // if (optind < argv.length)
     // msgnum = Integer.parseInt(argv[optind]);
          //msgnum = 5;
     // Get a Properties object
     Properties props = System.getProperties();
     // Get a Session object
     Session session = Session.getDefaultInstance(props, null);
     session.setDebug(debug);
     if (showMessage) {
          MimeMessage msg = new MimeMessage(session, System.in);
          dumpPart(msg);
          System.exit(0);
     // Get a Store object
     Store store = null;
     if (url != null) {
          URLName urln = new URLName(url);
          store = session.getStore(urln);
          store.connect();
     } else {
          if (protocol != null)
          store = session.getStore(protocol);
          else
          store = session.getStore();
          // Connect
          if (host != null || user != null || password != null)
          store.connect(host, port, user, password);
          else
          store.connect();
     // Open the Folder
     Folder folder = store.getDefaultFolder();
     if (folder == null) {
          System.out.println("No default folder");
          System.exit(1);
     folder = folder.getFolder(mbox);
     if (folder == null) {
          System.out.println("Invalid folder");
          System.exit(1);
     // try to open read/write and if that fails try read-only
     try {
          folder.open(Folder.READ_WRITE);
     } catch (MessagingException ex) {
          folder.open(Folder.READ_ONLY);
     int totalMessages = folder.getMessageCount();
     if (totalMessages == 0) {
          System.out.println("Empty folder");
          folder.close(false);
          store.close();
          System.exit(1);
     if (verbose) {
          int newMessages = folder.getNewMessageCount();
          System.out.println("Total messages = " + totalMessages);
          System.out.println("New messages = " + newMessages);
          System.out.println("-------------------------------");
     if (msgnum == -1) {
          // Attributes & Flags for all messages ..
          Message[] msgs = folder.getMessages();
          // Use a suitable FetchProfile
          FetchProfile fp = new FetchProfile();
          fp.add(FetchProfile.Item.ENVELOPE);
          fp.add(FetchProfile.Item.FLAGS);
          fp.add("X-Mailer");
          folder.fetch(msgs, fp);
          for (int i = 0; i < msgs.length; i++) {
          System.out.println("--------------------------");
          System.out.println("MESSAGE #" + (i + 1) + ":");
          dumpEnvelope(msgs[i]);
          // dumpPart(msgs[i]);
     } else {
          System.out.println("Getting message number: " + msgnum);
          Message m = null;
          try {
          m = folder.getMessage(msgnum);
          dumpPart(m);
          } catch (IndexOutOfBoundsException iex) {
          System.out.println("Message number out of range");
     folder.close(false);
     store.close();
     } catch (Exception ex) {
     System.out.println("Oops, got exception! " + ex.getMessage());
     ex.printStackTrace();
     System.exit(1);
     System.exit(0);
public static void dumpPart(Part p) throws Exception {
     if (p instanceof Message)
     dumpEnvelope((Message)p);
     /** 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;
     while ((c = is.read()) != -1)
     System.out.write(c);
     pr("CONTENT-TYPE: " + p.getContentType());
     String filename = p.getFileName();
     if (filename != null)
     pr("FILENAME: " + filename);
     * Using isMimeType to determine the content type avoids
     * fetching the actual content data until we need it.
     if (p.isMimeType("text/plain")) {
     pr("This is plain text");
     pr("---------------------------");
     if (!showStructure)
          System.out.println((String)p.getContent());
     } else if (p.isMimeType("multipart/*")) {
     pr("This is a Multipart");
     pr("---------------------------");
     Multipart mp = (Multipart)p.getContent();
     level++;
     int count = mp.getCount();
     for (int i = 0; i < count; i++)
          dumpPart(mp.getBodyPart(i));
     level--;
     } else if (p.isMimeType("message/rfc822")) {
     pr("This is a Nested Message");
     pr("---------------------------");
     level++;
     dumpPart((Part)p.getContent());
     level--;
     } else if (!showStructure) {
     * If we actually want to see the data, and it's not a
     * MIME type we know, fetch it and check its Java type.
     Object o = p.getContent();
     if (o instanceof String) {
          pr("This is a string");
          pr("---------------------------");
          System.out.println((String)o);
     } else if (o instanceof InputStream) {
          pr("This is just an input stream");
          pr("---------------------------");
          InputStream is = (InputStream)o;
          int c;
          while ((c = is.read()) != -1)
          System.out.write(c);
     } else {
          pr("This is an unknown type");
          pr("---------------------------");
          pr(o.toString());
     } else {
     pr("This is an unknown type");
     pr("---------------------------");
public static void dumpEnvelope(Message m) throws Exception {
     pr("This is the message envelope");
     pr("---------------------------");
     Address[] a;
     // FROM
     if ((a = m.getFrom()) != null) {
     for (int j = 0; j < a.length; j++)
          pr("FROM: " + a[j].toString());
     // TO
     if ((a = m.getRecipients(Message.RecipientType.TO)) != null) {
     for (int j = 0; j < a.length; j++)
          pr("TO: " + a[j].toString());
     // SUBJECT
     pr("SUBJECT: " + m.getSubject());
     // DATE
     Date d = m.getSentDate();
     pr("SendDate: " +
     (d != null ? d.toString() : "UNKNOWN"));
     // FLAGS
     Flags flags = m.getFlags();
     StringBuffer sb = new StringBuffer();
     Flags.Flag[] sf = flags.getSystemFlags(); // get the system flags
     boolean first = true;
     for (int i = 0; i < sf.length; i++) {
     String s;
     Flags.Flag f = sf[i];
     if (f == Flags.Flag.ANSWERED)
          s = "\\Answered";
     else if (f == Flags.Flag.DELETED)
          s = "\\Deleted";
     else if (f == Flags.Flag.DRAFT)
          s = "\\Draft";
     else if (f == Flags.Flag.FLAGGED)
          s = "\\Flagged";
     else if (f == Flags.Flag.RECENT)
          s = "\\Recent";
     else if (f == Flags.Flag.SEEN)
          s = "\\Seen";
     else
          continue;     // skip it
     if (first)
          first = false;
     else
          sb.append(' ');
     sb.append(s);
     String[] uf = flags.getUserFlags(); // get the user flag strings
     for (int i = 0; i < uf.length; i++) {
     if (first)
          first = false;
     else
          sb.append(' ');
     sb.append(uf[i]);
     pr("FLAGS: " + sb.toString());
     // X-MAILER
     String[] hdrs = m.getHeader("X-Mailer");
     if (hdrs != null)
     pr("X-Mailer: " + hdrs[0]);
     else
     pr("X-Mailer NOT available");
static String indentStr = " ";
static int level = 0;
* Print a, possibly indented, string.
public static void pr(String s) {
     if (showStructure)
     System.out.print(indentStr.substring(0, level * 2));
     System.out.println(s);
This code is to move the message into a file
import javax.mail.*;
import com.sun.mail.pop3.*;
import javax.mail.internet.*;
import javax.activation.*;
import java.util.*;
import java.io.*;
//This class copies the content of the received e-mail into files. The file names are given by
//the urgent flag value and the subject
public class MoveMessageTo {
     boolean createdFile = true;
     static final byte urgentFlagPos=13;
     public MoveMessageTo() {
     public MoveMessageTo(Message[] msgs) {
          if(msgs.length != 0)
          try {
               for(int i = 0;i<msgs.length ;i++){
                    //Reads the content of the mail into an Object
                    Object currMultipart = msgs[i].getContent();
                    //converts this object into a String and then to a byte array, so we can read the urgnet flag
                    String content=(String)currMultipart;
                    byte[] testBytes=content.getBytes();
                    //The urgent flag is the first digit in the filename
                    StringBuffer fileName=new StringBuffer();
                    if (testBytes.length>urgentFlagPos)
                         fileName.append(new Byte(testBytes[urgentFlagPos]).toString());
                    //Then comes the subject of the e-mail
                    String mailSubject=msgs[i].getSubject();
                    if (mailSubject.length()>0)
                         fileName.append(mailSubject);
                    else fileName.append("noSubject");
                    fileName.append(".dat");
                    //create a directory to save the files
                    File baseDir = new File("c:/EMails/New");
                    baseDir.mkdirs();
                    //create file for with the subject as name
                    File eFile = new File(baseDir+"/"+fileName.toString());// creates a file by name of email subject
                    //Opening an stream for writting to the files
                    BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(eFile));
                    ObjectOutputStream oos = new ObjectOutputStream(bos);
                    //Writing the message body to the file
                    oos.writeObject(currMultipart) ;
                    //Closing the stream
                    oos.flush() ;
                    oos.close() ;
                    createdFile = true;
          }catch (Exception ex) {
               createdFile = false;
               System.out.println("eFile is not created ");
               ex.printStackTrace() ;
     public static void main(String[] args) {
          MoveMessageTo moveMessageTo1 = new MoveMessageTo();
This code is if there is an error in reading a file it will write those error into the file
import java.io.*;
import javax.swing.*;
import java.awt.Color;
import javax.swing.border.*;
//This class appends an error message to the log file
public class ErrorLogWriter {
     //JPanel jPanel2 = new JPanel();
     //Border border1;
     String logDirectory="c:/EMails/log/";
     File errFile; //= new File(errDir+"/"+"errorLog.dat");
     //The constructor initializes the errFile given the filename
     public ErrorLogWriter(String fileName) {
          errFile=new File(logDirectory+fileName);
          /*try {
               jbInit();
          }catch(Exception e) {
               e.printStackTrace();
     public void write(String writeStr){
          try {
               //Creates directory if doesn't exist
               File errDir = new File(logDirectory);
               errDir.mkdirs() ;
               //If the directory exists...
               if(errDir.isDirectory()){
                    //File errFile = new File(errDir+"/"+"errorLog.dat");
                    byte[] lastContent=new byte[0];
                    //If there is already a file with this name: Read its content so it can be preserved
                    if (errFile.exists()){
                         FileInputStream fis=new FileInputStream(errFile);
                         //Read everything into the byte array
                         lastContent=new byte[fis.available()];
                         fis.read(lastContent);
                    BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(errFile));
                    PrintWriter oos = new PrintWriter(bos);
                    String newWriteString=new String(lastContent);
                    writeStr.trim() ;
                    //Appends the new string to the old content
                    newWriteString+=writeStr;
                    newWriteString+="\n";
                    //writes everthing back to the file
                    oos.write(newWriteString) ;
                    oos.flush();
                    oos.close();
          }catch (Exception ex) {
               ex.printStackTrace() ;
     public static void main(String[] args) {
          ErrorLogWriter log = new ErrorLogWriter("logerror.log");
          log.write("Hello Log!") ;
All these file are in one package called SunMail and i run this in jbuilder in 4.0 ,I get the following error
eFile is not created
java.lang.ClassCastException: javax.mail.internet.MimeMultipart
     at MoveMessageTo.<init>(MoveMessageTo.java:26)
     at SunMailConnection.run(SunMailConnection.java:86)
     at SunMailConnection.start(SunMailConnection.java:118)
     at SunMailConnection.<init>(SunMailConnection.java:21)
     at SunMailConnection.main(SunMailConnection.java:133)
I know the it would be difficult if anyone could help me out it would be a great favour !!!
pls help me out of this !!!!