客户端带聊天记录.doc

package GroupChat;import java.awt.Button;import java.awt.Color;import java.awt.Frame;import java.awt.BorderLayout;/import java.awt.Label;import java.awt.Panel;import java.awt.TextArea;import java.awt.TextField;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import java.awt.event.WindowAdapter;import java.awt.event.WindowEvent;import java.io.BufferedReader;import java.io.BufferedWriter;import java.io.File;import java.io.FileReader;import java.io.FileWriter;import java.io.IOException;import java.io.InputStreamReader;import java.io.PrintWriter;import .ConnectException;import .Socket;import .SocketException;import java.text.SimpleDateFormat;import java.util.Date;public class client extends FrameFrame f;String client_name=null;final TextArea dsp=new TextArea();final TextField msg=new TextField(); Panel p=new Panel();Button b=new Button(Sent);Socket client=new Socket();/客户端socketboolean connected =false;BufferedReader in;PrintWriter out;SimpleDateFormat sdf=new SimpleDateFormat(HH:mm:ss);/设置时间格式为时分秒public void disconnect()/连接终止时关闭流信息和sockettry out.close();in.close();connected=false;client.close();catch(NullPointerException e)e.printStackTrace();catch (IOException e1) / TODO Auto-generated catch blocke1.printStackTrace();public void connect()/与服务器端取得连接tryclient=new Socket(,8885);/获得用户端socket上的流信息in=new BufferedReader(new InputStreamReader(client.getInputStream();out =new PrintWriter(client.getOutputStream();connected=true;System.out.println(connected);catch(ConnectException connExc)System.err.println(服务器连接失败！);catch(IOException e)e.printStackTrace();class MyThread implements Runnable/建立线程读取信息boolean bconnected;MyThread(boolean con)bconnected=con;public void run()String read=null;while(bconnected)try read=in.readLine();/读取客户端的流信息，有内容读入，无内容挂起System.out.println(read+ has received);/写到txt文件，保存聊天记录File file=new File(D:+client_name+的聊天记录.txt);if(!file.exists()file.createNewFile();FileWriter fwriter=new FileWriter(file,true);/获得文件的输出流，追加方式BufferedWriter bwriter=new BufferedWriter(fwriter);bwriter.write(read);/写内容bwriter.newLine();bwriter.flush();/清空缓冲区，立即将输出流里的内容写到文件里bwriter.close();/关闭文件流，释放资源fwriter.close();/*tryRuntime.getRuntime().exec(D:+client_name+的聊天记录.txt);catch(IOException e)System.out.println(好像打不开呢 ！);e.printStackTrace();*/Frame record=new Frame(client_name+的聊天记录);record.setSize(500,400);record.setBackground(Color.cyan);record.setLayout(null);TextArea tr=new TextArea();tr.setSize(400, 300);tr.setLocation(50, 50);record.addWindowListener(new WindowAdapter()public void windowClosing(WindowEvent e)System.exit(0););record.add(tr);record.setVisible(true);/File file=new File(D:+client_name+的聊天记录.txt);if(!file.exists()System.out.println(对不起，还没有聊天记录);FileReader freader=new FileReader(file);BufferedReader breader=new BufferedReader(freader);String str=breader.readLine();while(str!=null)tr.append(str+n);str=breader.readLine();breader.close();freader.close();out.flush();dsp.append(read+n);/追加的方式显示服务器发来的信息 catch(SocketException e)System.out.println(socket关闭，已退出);bconnected=false;catch(NullPointerException e)e.printStackTrace();catch (IOException e) / TODO Auto-generated catch blocke.printStackTrace();public void Construct()/构造登陆界面final Frame front=new Frame(Login);front.setSize(450,250);front.setLayout(null);front.setBackground(Color.pink);Panel pfront=new Panel();pfront.setSize(320,150);pfront.setLocation(50,50);pfront.setLayout(null);pfront.setBackground(Color.white);front.add(pfront);TextField ta=new TextField();ta.setEditable(false);final TextField name=new TextField();ta.setBackground(Color.lightGray);Button login=new Button(LogIn);login.setBackground(Color.lightGray);ta.setSize(75,20);ta.setLocation(50,30);ta.setText(用户名:);name.setSize(155,20);name.setLocation(125,30);login.setSize(70,30);login.setLocation(100,100);pfront.add(ta);pfront.add(name);pfront.add(login);front.setVisible(true);login.addActionListener(new ActionListener()/点击登陆按钮进入聊天界面public void actionPerformed(ActionEvent e)String na=name.getText();f=new Frame(Client-+na);client_login(f,na);/向聊天界面传入用户姓名front.setVisible(false);/当前登陆界面设置为隐藏);front.addWindowListener(new WindowAdapter()public void windowClosing(WindowEvent e)System.exit(0););public void client_login(Frame f,String name) /聊天界面client_name=name;f.setSize(600,400);f.setBackground(Color.pink);p.setSize(500,300);p.setLocation(50,50);p.setLayout(new BorderLayout();dsp.setEditable(false);dsp.setBackground(Color.white);p.add(dsp,BorderLayout.CENTER);p.add(msg,BorderLayout.SOUTH);f.setLayout(null);f.add(p);b.setBounds(500, 360, 80, 30);f.add(b);f.setVisible(true);connect();MyThread mythread =new MyThread(connected);Thread thread=new Thread(mythread);thread.start();b.addActionListener(new ActionListener()/点击发送按钮，向服务器发送用户姓名，当前时间，以及想要说的话public void actionPerformed(ActionEvent e)String s=msg.getText().toString();/获得输入框中的内容out.println(client_name+ ( +sdf.format(new Date()+ ) : +s);/将要发送的信息写到输出流中System.out.printl