maildisplayui.java

自己编写的邮件管理系统程序源代码,方便管理自己的邮件

package mail.ui;

import java.awt.Color;
import java.awt.Rectangle;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.util.LinkedList;

import javax.swing.BorderFactory;
import javax.swing.JButton;
import javax.swing.JCheckBox;
import javax.swing.JEditorPane;
import javax.swing.JFileChooser;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;

import mail.message.MailMessage;

public class MailDisplayUI extends JFrame implements ActionListener,ItemListener
{
    JLabel labSubjectDisplayTitle = new JLabel();

    JLabel labSubject = new JLabel();

    JLabel labFrom = new JLabel();

    JLabel labFromDisplayTitle = new JLabel();

    JEditorPane taMailContent = new JEditorPane();

    JScrollPane jspMailContent=new JScrollPane(taMailContent);
    
    JPanel panelAttach = new JPanel();

    JButton bClose = new JButton();

    JButton bReply = new JButton();

    JButton bTSend = new JButton();

    /**
     * 邮件客户端
     */
    private MailClientUI mailClient;
    
    private MailMessage nowMailItem=null;
    
    public MailDisplayUI(MailClientUI mailClient)
    {
        initUI();
        this.mailClient = mailClient;
    }
    private void initUI()
    {
        this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        JFrame.setDefaultLookAndFeelDecorated(true);
        
        labSubjectDisplayTitle.setBorder(BorderFactory
                .createLineBorder(Color.black));
        labSubjectDisplayTitle.setText("     主题：");
        labSubjectDisplayTitle.setBounds(new Rectangle(20, 18, 56, 32));
        this.getContentPane().setLayout(null);
        labSubject.setBorder(BorderFactory.createLineBorder(Color.black));
        labSubject.setBounds(new Rectangle(95, 18, 385, 32));
        labFrom.setBounds(new Rectangle(95, 57, 385, 32));
        labFrom.setBorder(BorderFactory.createLineBorder(Color.black));
        labFromDisplayTitle.setBounds(new Rectangle(20, 55, 56, 32));
        labFromDisplayTitle.setBorder(BorderFactory
                .createLineBorder(Color.black));
        labFromDisplayTitle.setText(" 发信人:");
        jspMailContent.setBorder(BorderFactory.createLineBorder(Color.black));
        taMailContent.setBounds(new Rectangle(21, 102, 458, 214));
        jspMailContent.setBounds(new Rectangle(21, 102, 458, 214));
        panelAttach.setBorder(BorderFactory.createLineBorder(Color.black));
        panelAttach.setBounds(new Rectangle(20, 327, 458, 75));
        bClose.setBackground(Color.white);
        bClose.setBorder(BorderFactory.createLineBorder(Color.black));
        bClose.setText("关闭");
        bClose.setBounds(new Rectangle(100, 420, 100, 31));
        bReply.setBackground(Color.white);
        bReply.setBorder(BorderFactory.createLineBorder(Color.black));
        bReply.setText("回复");
        bReply.setBounds(new Rectangle(210, 420, 100, 31));
        bTSend.setBackground(Color.white);
        bTSend.setBorder(BorderFactory.createLineBorder(Color.black));
        bTSend.setText("转发");
        bTSend.setBounds(new Rectangle(320, 420, 100, 31));
       
        this.getContentPane().setBackground(Color.lightGray);
        this.getContentPane().add(labSubjectDisplayTitle, null);
        this.getContentPane().add(labFromDisplayTitle, null);
        this.getContentPane().add(jspMailContent, null);
        this.getContentPane().add(labFrom, null);
        this.getContentPane().add(labSubject, null);
        this.getContentPane().add(panelAttach, null);
        this.getContentPane().add(bReply, null);
        this.getContentPane().add(bTSend, null);

        this.getContentPane().add(bClose, null);
        
        panelAttach.setLayout(null);
        this.bClose.addActionListener(this);

        this.bReply.addActionListener(this);
        this.bTSend.addActionListener(this);
        
        this.setSize(520,500);
        this.setTitle("显示邮件信息窗口");
        this.setLocation(100,50);
      }
      public static void main(String[] args)
      {
          new MailDisplayUI(new MailClientUI()).setVisible(true);
      }
      public void actionPerformed(ActionEvent e)
      {
          if(e.getSource().equals(this.bClose))
          {
              close();
          }
          else if(e.getSource().equals(this.bReply))
          {
              reply();
          }
          else if(e.getSource().equals(this.bTSend))
          {
              tSend();
          }else
          {
          }
      }
      /**
       * 显示邮件
       * @param item
       */
      public void displayMailMessage(MailMessage item)
      {
          nowMailItem=item;
          
          this.labFrom.setText(item.getFrom());
          this.labSubject.setText(item.getSubject());
          if(item.getContent()!=null&&item.getContent().equals("html"))
              this.taMailContent.setContentType("text/html");
          else
              this.taMailContent.setContentType("text/plain");
          
          this.taMailContent.setText(item.getContent());
   
          panelAttach.removeAll();
          LinkedList list=item.getAttachList();
          if(item.isFlag()==true&&list!=null)
          {
              for(int i=0;i<list.size();i++)
              {
                    JCheckBox jcb=new JCheckBox((String)list.get(i));
                    jcb.setBounds(new Rectangle(20, i*18, 430, 18));
                    jcb.addItemListener(this);
                    jcb.setBackground(Color.WHITE);
                    panelAttach.add(jcb);
              }
          }
          panelAttach.updateUI();
          this.setVisible(true);
      }
      /**
       * 保存附件
       */
      public void itemStateChanged(ItemEvent e) 
      {
          for(int i=0;i<panelAttach.getComponentCount();i++)
          {
             JCheckBox jcb=(JCheckBox)panelAttach.getComponent(i);
             if(jcb.isSelected()==true)
             {
                 JFileChooser fc=new JFileChooser();
                 int result=fc.showSaveDialog(this);
                 if(result==JFileChooser.APPROVE_OPTION)
                 {                  
                     File nowdir = new File(".").getAbsoluteFile();
                     String dirString = nowdir.toString();
                     String subs = dirString.substring(0, dirString.length() - 1);
                     File tempDir = new File(subs + "info/enclosure/");
                     File filename=new File(tempDir,jcb.getText());
                     
                     boolean flag=copy(filename,fc.getSelectedFile());
                     if(flag==true) jcb.setBackground(Color.PINK);
                     else
                     {
                         jcb.setSelected(false);
                         jcb.setBackground(Color.WHITE);
                     }
                 }else
                 {
                     jcb.setSelected(false);
                     jcb.setBackground(Color.WHITE);
                 }
                 
             }
          }
          panelAttach.updateUI();
      }
      /**
       * 拷贝文件
       * @return
       */
      public boolean copy(File source,File dest)
      {
          try
          {
              if(source.equals(dest))  return true;
              
              FileInputStream fin=new FileInputStream(source);
              FileOutputStream fout=new FileOutputStream(dest);
              int count,n=1024;
              byte[] buffer=new byte[n];
              count=fin.read(buffer,0,n);
              while(count!=-1)
              {
                 fout.write(buffer,0,count);
                 count=fin.read(buffer,0,n);
              }
              fin.close();
              fout.close();
              return true;
          }catch(Exception e)
          {
              e.printStackTrace();
              return false;
          }
      }

      /**
       * 关闭窗口
       *
       */  
      private void close()
      {
          this.setVisible(false);
      }
      /**
       * 回复
       *
       */
      private void reply()
      {
          mailClient.getSendUI().replyMailMessage(nowMailItem);
          this.setVisible(false);
      }
      /**
       * 转发该邮件
       *
       */
      private void tSend()
      {
          mailClient.getSendUI().TSendMailMessage(nowMailItem);
          this.setVisible(false);
      }
}