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bb135789

应助: (幼儿园)
在线:
虫号: 347697

[交流] 【求助】java邮件发送软件开发的问题

最近在学习JAVA,在学习邮件开发时遇到了问题.运行程序后，出现N个邮件发送界面，且设置完成后,发送失败.小弟找不到原因，望哪位高手帮忙解答。小弟奉上所有金币。以下为所有程序:

import javax.mail.*;
import javax.mail.internet.*;
import java.util.*;
import javax.swing.*;
import java.awt.event.*;
import java.awt.*;
import java.io.*;

public class UseSMTPMail extends JFrame {
JButton sendButton=new JButton("发信"

;
JLabel hostLabel=new JLabel("SMTP服务器"

;
JLabel usernameLabel=new JLabel("用户名："

;
JLabel passwordLabel=new JLabel("密码："

;
JLabel fromLabel=new JLabel("发件人："

;
JLabel toLabel=new JLabel("收件人："

;
JLabel subjectLabel=new JLabel("主题："

;
JTextField usernameField=new JTextField(40);
JPasswordField passwordField=new JPasswordField(40);
JTextField hostField=new JTextField(40);
JTextField fromField=new JTextField(40);
JTextField toField=new JTextField(40);
JTextField subjectField=new JTextField(40);
JTextArea message=new JTextArea(10,10);
JScrollPane jsp=new JScrollPane(message);
public UseSMTPMail(){
   Container contentPane=this.getContentPane();
   JPanel labels=new JPanel(new GridLayout(6,1));
   JPanel fields=new JPanel(new GridLayout(6,1));
   labels.add(hostLabel);fields.add(hostField);
   labels.add(usernameLabel);fields.add(usernameField);
   labels.add(passwordLabel);fields.add(passwordField);
   labels.add(toLabel);fields.add(toField);
   labels.add(fromLabel);fields.add(toField);
   labels.add(subjectLabel);fields.add(subjectField);
   Box north=Box.createHorizontalBox();
   north.add(labels);north.add(fields);
   contentPane.add(north,"North"

;contentPane.add(jsp,"Center"

;
   JPanel south=new JPanel();
   south.add(sendButton);
   sendButton.addActionListener(new SendMail());
   contentPane.add(south,"South"

;
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setTitle("发送电子邮件"

;
   setSize(400,400);
   setVisible(true);
}
class SendMail implements ActionListener
{
   public void actionPerformed(ActionEvent evt){
   try{
      Properties props=new Properties();
      props.put("mail.smtp.auth","true"

;
      Session session=Session.getDefaultInstance(props,new Authenticator(){
         public PasswordAuthentication getPasswordAuthentication(){
         return new PasswordAuthentication(usernameField.getText(),
         passwordField.getText());
      }
  });
  final Message msg=new MimeMessage(session);
  Address to=new InternetAddress(toField.getText());
  Address from=new InternetAddress(fromField.getText());
  msg.setFrom(from);
  msg.setRecipient(Message.RecipientType.TO,to);
  msg.setSentDate(new Date());
  msg.setSubject(transferChinese(subjectField.getText()));
  msg.setContent(message.getText(),"GBK"

;
  Runnable r=new Runnable(){
public void run(){
   try{
   Transport.send(msg);
   }catch(Exception e){e.printStackTrace();}
}
  };
  Thread t=new Thread(r);
  t.start();
  message.setText(""

;
}catch(Exception e){e.printStackTrace();}
}
}
public String transferChinese(String strText){
try{
strText=MimeUtility.encodeText(new String(strText.getBytes(),"GB2312"

,"GB2312","B"

;
}catch(Exception e){e.printStackTrace();}
return strText;
}
public static void main(String[] args){
Font font=new Font("JFrame",Font.PLAIN,14);
Enumeration keys=UIManager.getLookAndFeelDefaults().keys();
while(keys.hasMoreElements()){
Object key=keys.nextElement();
if(UIManager.get(key)instanceof Font)UIManager.put(key,font);
UseSMTPMail smail=new UseSMTPMail();
}
}
}

召唤高手，高手快来啊~~~~~

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