JavaMail Use of small notes

/**
*
*/
Package com.util;

Import java.io.UnsupportedEncodingException;
Import java.util.Properties;

Import Javax.mail.Authenticator;
Import Javax.mail.Folder;
Import Javax.mail.Message;
Import javax.mail.MessagingException;
Import javax.mail.NoSuchProviderException;
Import javax.mail.PasswordAuthentication;
Import javax.mail.Session;
Import Javax.mail.Store;
Import Javax.mail.Transport;
Import javax.mail.internet.InternetAddress;
Import Javax.mail.internet.MimeMessage;
Import javax.mail.internet.MimeUtility;

/**
* @author WQF
*
*/
public class Emailsendtools {

Private final static String _email_account = "[EMAIL protected]";
Private final static String _email_password = "XXX";
Private final static String _smtp_host = "smtp.qq.com";
Private final static String _smtp_port = "465";
Private final static String _pop3_host = "pop.qq.com";
Private final static String _pop3_port = "995";

/**

* @param args
*/
public static void Main (string[] args) {
SendEmail (_email_account, "test", "test");
Receivemail ();
}

public static void Receivemail () throws sendemailexception{
try {
Store store = GetSession (false). GetStore ();
Store.connect ();
Folder folder = Store.getfolder ("INBOX");
Folder.open (folder.read_only);
message[] msgs = folder.getmessages (1,20);
int count = Msgs.length;
for (int i = 0; i < count; i++) {
System.out.println ("sender:" + decodetext (Msgs[i].getfrom () [0].tostring ())];
System.out.println ("Subject:" + Msgs[i].getsubject (). toString ());
}
} catch (Nosuchproviderexception e) {
throw new Sendemailexception ("link message failed" + E.getmessage (), E);
} catch (Messagingexception e) {
throw new Sendemailexception ("Read Inbox failed:" + e.getmessage (), E);
} catch (Unsupportedencodingexception e) {
throw new Sendemailexception ("message parsing failed:" + e.getmessage (), E);
}
}

private static string Decodetext (string text)

Throws unsupportedencodingexception{
if (text = = null)
return null;
if (text.startswith ("=? GB ") | | Text.startswith ("=?GB") | | Text.startswith ("=? UTF ") | | Text.startswith ("=?utf"))
Text = Mimeutility.decodetext (text);
Else
Text = new String (text.getbytes ("iso8859_1"));
return text;
}

/**
*
* @param from
* @param to
* @param title
* @param emsg
* @return Boolean
* @throws sendemailexception
*/
public static Boolean SendEmail (string to, string title, String emsg) throws Sendemailexception {
try {
Session session = GetSession (true);
MimeMessage message = new MimeMessage (session);
Message.setfrom (New InternetAddress (_email_account));
Message.addrecipient (Message.RecipientType.TO, New internetaddress (to));
Message.setsubject (title);
Message.settext (EMSG);
Message.savechanges ();
Transport.send (message);
} catch (Messagingexception e) {
throw new Sendemailexception ("message sent failed:" + e.getmessage (), E);
}
return true;
}

private static Properties Getprop (Boolean send) {
Security.addprovider (New Com.sun.net.ssl.internal.ssl.Provider ());
Properties prop = new properties ();
if (send) {
Prop.setproperty ("Mail.transport.protocol", "SMTP");
Prop.setproperty ("Mail.smtp.host", _smtp_host);
Prop.setproperty ("Mail.smtp.auth", "true");
Prop.setproperty ("Mail.smtp.port", _smtp_port);
Prop.setproperty ("Mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory");
Prop.setproperty ("Mail.smtp.socketFactory.fallback", "false");
Prop.setproperty ("Mail.smtp.socketFactory.port", _smtp_port);
} else {
Prop.setproperty ("Mail.store.protocol", "POP3");
Prop.setproperty ("Mail.pop3.host", _pop3_host);
Prop.setproperty ("Mail.pop3.port", _pop3_port);
Prop.setproperty ("Mail.pop3.auth", "true");
Prop.setproperty ("Mail.pop3.socketFactory.class", "javax.net.ssl.SSLSocketFactory");
Prop.setproperty ("Mail.pop3.socketFactory.fallback", "false");
Prop.setproperty ("Mail.pop3.socketFactory.port", _pop3_port);
}
return prop;
}

private static Session getsession (Boolean send) {
Session session = Session.getdefaultinstance (Getprop (send), Getaut ());
Session.setdebug (TRUE);
return session;
}

private static Authenticator Getaut () {
Authenticator aut = new Myauthenricator (_email_account, _email_password);
return AUT;
}

private static class Sendemailexception extends RuntimeException {
/**
*
*/
Private static final long serialversionuid = 1L;

@SuppressWarnings ("unused")
Public Sendemailexception () {
Super ();
}

@SuppressWarnings ("unused")
Public sendemailexception (String msg) {
Super (MSG);
}

@SuppressWarnings ("unused")
Public sendemailexception (Throwable cause) {
Super (cause);
}

Public sendemailexception (String message, throwable cause) {
Super (message, cause);
}
}

/**
* Client program implement authenticator subclass for user authentication
*/
Static Class Myauthenricator extends Authenticator {
String user = null;
String pass = "";

Public Myauthenricator (string user, String pass) {
This.user = user;
This.pass = pass;
}

@Override
Protected Passwordauthentication getpasswordauthentication () {
return new Passwordauthentication (user, pass);
}

}
}

JavaMail Use of small notes