我的聊天/文件传输软件代码(----FriendIP代码)

/** *//**


* 存储获得朋友IP


*/


package friendIP;


import javax.swing.*;


import java.awt.*;


import java.awt.event.*;


import mychat.*;


import java.io.*;


import java.util.*;


import java.net.*;


import javax.swing.border.TitledBorder;




public class FriendIP extends JFrame...{




private JLabel label;


private JList list;


private JScrollPane scroll;


private TitledBorder border;


private JButton button;


//存储ip


private ArrayList<String> data;


private Container pane;


private int width=Toolkit.getDefaultToolkit().getScreenSize().width/2;


private int height=Toolkit.getDefaultToolkit().getScreenSize().height/2;


private String selectValue;






/** *//**


* 初始化


*/




public FriendIP()...{


data=new ArrayList<String>();




try...{


data.add(InetAddress.getLocalHost().getHostAddress());




}catch(Exception ee)...{


ee.printStackTrace();


}




selectValue=null;


label=new JLabel("好友IP列表");


list=new JList(this.getData().toArray());


list.setSelectionForeground(Color.magenta);


list.setSelectionBackground(Color.white);


list.setVisibleRowCount(3);


list.setFixedCellHeight(30);


scroll=new JScrollPane(list);


border=new TitledBorder("");


button=new JButton("发送");




button.addActionListener(new ActionListener()...{




public void actionPerformed(ActionEvent e)...{


setSelectValue();


String st=getSelectValue();


dispose();


mychat.MyChatFrame.setFriendIP(st);




}


});




pane=this.getContentPane();


pane.setLayout(null);


pane.setBackground(Color.white);


this.setSize(400,200);


this.setLocation(width/4+150,height/4+150);




label.setBounds(new Rectangle(10,60,80,40));


label.setBorder(border);


scroll.setBorder(border);


scroll.setBounds(new Rectangle(90,60,200,40));




button.setBorder(border);


button.setBounds(new Rectangle(300,60,80,40));




pane.add(label);


pane.add(scroll);


pane.add(button);


Image image=Toolkit.getDefaultToolkit().createImage("picture/goo.gif");


this.setIconImage(image);


this.setResizable(false);


}




/** *//**


* 获得选择的朋友IP


*/




public String getSelectValue()...{


return selectValue;


}




public void setSelectValue()...{


selectValue=(String)list.getSelectedValue();




}






public int getListCount()...{


int count=list.getModel().getSize();


return count;


}




/** *//**


* 获得所有的朋友IP


*/




public ArrayList<String> getData()...{


ArrayList<String> data8=new ArrayList<String>();




try...{




File file=new File("friends/friend.lh");




if(!file.exists()||file.isDirectory())...{


file.createNewFile();


return data;


}




else...{


BufferedReader read=new BufferedReader(new InputStreamReader(new FileInputStream(file)));


String line=null;


int j=1;




data8.add(data.get(0));




while( (line=read.readLine())!=null)...{


if(line.equals(data.get(0)));


else


data8.add(line);


}




return data8;




}






}catch(Exception e)...{


e.printStackTrace();


}




return data;


}




/** *//**


* 存储所有的朋友IP


*/




public void setData(ArrayList<String> data3)...{




try...{


File file=new File("friends/friend.lh");




if(file.isDirectory()||!file.exists())...{


file.createNewFile();


BufferedWriter buff=new BufferedWriter(new OutputStreamWriter(new FileOutputStream (file)));




for(int i=0;i<data3.size();i++)...{




if(i==data3.size()-1)...{


buff.write(data3.get(i));


}




else...{


buff.write(data3.get(i));


buff.newLine();


}


}


buff.close();


}




else...{


BufferedWriter buff=new BufferedWriter(new PrintWriter(file));




for(int j=0;j<data3.size();j++)...{


buff.write(data3.get(j));


buff.newLine();


}


buff.close();


}


}




catch(Exception e)...{


e.printStackTrace();


}




}




}