利用Javamail接收QQ邮箱和Gmail邮箱

QQ接收邮箱:

 

 <p>package com.sam.mail;</p><p>import java.io.FileOutputStream;
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.OutputStream;
 import java.io.UnsupportedEncodingException;
 import java.security.Security;
 import java.util.Enumeration;
 import java.util.Properties;</p><p>import javax.mail.BodyPart;
 import javax.mail.FetchProfile;
 import javax.mail.Folder;
 import javax.mail.Header;
 import javax.mail.Message;
 import javax.mail.MessagingException;
 import javax.mail.Multipart;
 import javax.mail.Session;
 import javax.mail.Store;
 import javax.mail.internet.InternetAddress;
 import javax.mail.internet.MimeUtility;</p>
 <p>import org.junit.Test;</p><p>import com.sun.mail.imap.IMAPMessage;</p>


 <p>/**
  *
  * @author  [email protected]
  *
  */
 </p>
 public class EmailClient {

 <p> private static final String IMAP = "imap";

  @Test
  public void testRece() throws Exception{
   reviceQQEmail(System.getProperty("email"), System.getProperty("password"));
  }
   </p><p> public void reviceQQEmail(String username, String password) throws Exception{
   String host = "imap.qq.com";
   String port = "143";

   Security.addProvider(new com.sun.net.ssl.internal.ssl.Provider());

   final String SSL_FACTORY = "javax.net.ssl.SSLSocketFactory";

   Properties props = System.getProperties();
   props.setProperty("mail.imap.socketFactory.class", SSL_FACTORY);
 //  props.setProperty("mail.imap.socketFactory.fallback", "false");
 //     props.setProperty("mail.imap.port", port);
      props.setProperty("mail.imap.socketFactory.port", port);


       props.setProperty("mail.store.protocol","imap");
    props.setProperty("mail.imap.host", host);
    props.setProperty("mail.imap.port", port);
    props.setProperty("mail.imap.auth.login.disable", "true");  </p><p>  Session session = Session.getDefaultInstance(props,null);
   session.setDebug(false);
   Store store = session.getStore("imap");
         store.connect(host, username, password);</p><p>  Folder inbox = null;
   try {

   inbox = store.getFolder("Inbox");
   inbox.open(Folder.READ_ONLY);
   FetchProfile profile = new FetchProfile();
   profile.add(FetchProfile.Item.ENVELOPE);
   Message[] messages = inbox.getMessages();
   inbox.fetch(messages, profile);
   System.out.println("收件箱的邮件数：" + messages.length);

   IMAPMessage msg;
   for (int i = 0; i < messages.length; i++) {
    msg = (IMAPMessage)messages[i];
    String from = decodeText(msg.getFrom()[0].toString());
    InternetAddress ia = new InternetAddress(from);
    System.out.println("FROM:" + ia.getPersonal()+'('+ia.getAddress()+')');
    System.out.println("TITLE:" + msg.getSubject());
    System.out.println("SIZE:" + msg.getSize());
    System.out.println("DATE:" + msg.getSentDate());
     Enumeration headers = msg.getAllHeaders();
              System.out.println("----------------------allHeaders-----------------------------");
           while (headers.hasMoreElements()) {
                  Header header = (Header)headers.nextElement();
                  System.out.println(header.getName()+" ======= "+header.getValue());
              }  </p><p>         parseMultipart((Multipart) msg.getContent());   </p><p>  }

   } finally {
    try {
     inbox.close(false);
    } catch (Exception e) {
    }
    try {
     store.close();
    } catch (Exception e) {
    }
   }
  }</p><p> protected String decodeText(String text) throws UnsupportedEncodingException {
   if (text == null)
    return null;
   if (text.startsWith("=?GB") || text.startsWith("=?gb"))
    text = MimeUtility.decodeText(text);
   else
    text = new String(text.getBytes("ISO8859_1"));
   return text;</p><p> }


     /**
      * 对复杂邮件的解析
      * @param multipart
      * @throws MessagingException
      * @throws IOException
      */
     public static void parseMultipart(Multipart multipart) throws MessagingException, IOException {
         int count = multipart.getCount();
         System.out.println("couont =  "+count);
         for (int idx=0;idx<count;idx++) {
             BodyPart bodyPart = multipart.getBodyPart(idx);
             System.out.println(bodyPart.getContentType());
             if (bodyPart.isMimeType("text/plain")) {
                 System.out.println("plain................."+bodyPart.getContent());
             } else if(bodyPart.isMimeType("text/html")) {
                 System.out.println("html..................."+bodyPart.getContent());
             } else if(bodyPart.isMimeType("multipart/*")) {
                 Multipart mpart = (Multipart)bodyPart.getContent();
                 parseMultipart(mpart);

             } else if (bodyPart.isMimeType("application/octet-stream")) {
                 String disposition = bodyPart.getDisposition();
                 System.out.println(disposition);
                 if (disposition.equalsIgnoreCase(BodyPart.ATTACHMENT)) {
                     String fileName = bodyPart.getFileName();
                     InputStream is = bodyPart.getInputStream();
                     copy(is, new FileOutputStream("D:\\"+fileName));
                 }
             }
         }
     }

     /**
      * 文件拷贝，在用户进行附件下载的时候，可以把附件的InputStream传给用户进行下载
      * @param is
      * @param os
      * @throws IOException
      */
     public static void copy(InputStream is, OutputStream os) throws IOException {
         byte[] bytes = new byte[1024];
         int len = 0;
         while ((len=is.read(bytes)) != -1 ) {
             os.write(bytes, 0, len);
         }
         if (os != null)
             os.close();
         if (is != null)
             is.close();
     }   </p><p>}
 </p>