servlet1.java~42~

一个老式的邮件发送程序,使用的是SMTP 协议,好像只有新浪和163能使用这个程 序发邮件.

package mailproject;

import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.util.*;
import java.util.Date;
import java.util.Properties;
import javax.activation.DataHandler;
import javax.activation.FileDataSource;
import javax.mail.*;
import javax.mail.internet.*;

public class Servlet1 extends HttpServlet {
    public Servlet1() {
        try {
            jbInit();
        } catch (Exception ex) {
            ex.printStackTrace();
        }
    }

    private static final String CONTENT_TYPE = "text/html; charset=GB2312";

    //Initialize global variables
    public void init() throws ServletException {
    }

    //Process the HTTP Get request
    public void doGet(HttpServletRequest request, HttpServletResponse response) throws
            ServletException, IOException {
        response.setContentType(CONTENT_TYPE);
        PrintWriter out = response.getWriter();

        String emailTo = request.getParameter("txtto");

        String fromEmail = request.getParameter("txtfrom");
        String password = request.getParameter("txtpwd");
        String subject = request.getParameter("txtsubject");
        String body = request.getParameter("txtmessage");
        String emailAdd=fromEmail+"@sina.com";
        try {
            Properties props = new Properties();
            props.put("mail.transport.protocol", "smtp");

            props.put("mail.smtp.host", "smtp.sina.com");
            props.put("mail.smtp.auth", "true");
            props.put("username", fromEmail);
            props.put("password", password);
            props.put("mail.smtp.port","25");
            Session mailsession = Session.getInstance(props);
            Message msg = new MimeMessage(mailsession);
            System.out.println("1");
            msg.setFrom(new InternetAddress(emailAdd));
            System.out.println("2");
            msg.setRecipients(Message.RecipientType.TO,
                              InternetAddress.parse(emailTo));
            msg.setSentDate(new Date());
            msg.setSubject(subject);
            msg.setText(body);
            msg.saveChanges();
            System.out.println("4");
            Transport tran = mailsession.getTransport("smtp");
            System.out.println("3");
            tran.connect("smtp.sina.com", fromEmail, password);


            tran.sendMessage(msg, msg.getAllRecipients());//tran.send(msg, msg.getAllRecipients());
            //msg.writeTo(System.out);
            out.println("邮件已成功发送到 " + emailTo);

        } catch (Exception e) {
            out.println("发送失败" + e.getMessage());
        }

        out.close();
    }

    //Process the HTTP Post request
    public void doPost(HttpServletRequest request, HttpServletResponse response) throws
            ServletException, IOException {
        doGet(request, response);
    }

    //Clean up resources
    public void destroy() {
    }

    private void jbInit() throws Exception {
    }
}