sendmailthread.java

远程学生作业提交系统,所用技术JSP,Servelet,Ajax,Web Services,MySql

package com.sixtwenty;

import javax.mail.*;
import javax.mail.internet.*;
import java.util.Properties;
import java.sql.*;

/**
 * To send an email via a thread
 */
public class SendMailThread extends Thread {
    /**
     * The server's host
     */
    protected String _serverHost;

    /**
     * The user's login to connect to the smtp server
     */
    protected String _userLogin;

    /**
     * The password to connect to the smtp server
     */
    protected String _password;

    /**
     * The author of the email
     */
    protected String _from;

    /**
     * The email's subject
     */
    protected String _subject;

    /**
     * The email's content
     */
    protected String _content;
    
    /**
     * List of email to send
     */
    protected String[] _emails;

    /**
     * The constructor of the SendMailThread Class
     * @param serverHost The server's host
     * @param userLogin The user's login to connect to the smtp server
     * @param password The password to connect to the smtp server
     * @param from The recipient of the email
     */
    public SendMailThread(String serverHost, String userLogin, String password, String from) {
        _serverHost = serverHost;
        _userLogin = userLogin;
        _password = password;
        _from = from;
    }


    /**
     * The method to send an email to a list of email addresses
     * @param subject The email's subject
     * @param content The email's content
     * @param emails The email addresses to send this email
     */
    public void send(String subject, String content, String[] emails) throws Exception {
         _subject = subject;
         _content = content;
         _emails = emails;

         // Launch the sending in a thread
         start();
    }

    /**
     * Send the emails in a thread
     */
    public void run() {
        Properties props = new Properties();
        props.setProperty("mail.transport.protocol", "smtp");
        props.setProperty("mail.host", _serverHost);
        props.setProperty("mail.user", _userLogin);
        props.setProperty("mail.password", _password);

        try {
            Session mailSession = Session.getDefaultInstance(props, null);
            Transport transport = mailSession.getTransport();

            MimeMessage message = new MimeMessage(mailSession);
            message.setSubject(_subject);
            message.setContent(_content, "text/plain");

            // set the from and to address
            InternetAddress addressFrom = new InternetAddress(_from);
            message.setFrom(addressFrom);

            // We send the email to all the email addresses in "emails"
            for (int i=0; i < _emails.length; i++) {
                message.addRecipient(Message.RecipientType.TO,
                     new InternetAddress(_emails[i]));
            }

            transport.connect();
            transport.sendMessage(message,
                message.getRecipients(Message.RecipientType.TO));
            transport.close();
        } catch(Exception e) {}
      }
   }