java socket聊天客户端

public class Clien
{

private static Socket socket;

public static void main(String[] args)
{
try
{
connect();
}
catch (IOException e)
{
e.printStackTrace();
}
}

private static void connect() throws IOException {
InetAddress addr = InetAddress.getByName("127.0.0.1");
socket = new Socket(addr, 9999);
System.out.println("客户端发出socket=" + socket);
CGetMessage gm = new CGetMessage(socket);
CSendMessage sm = new CSendMessage(socket);
Thread gt = new Thread(gm);
Thread st = new Thread(sm);
gt.start();
st.start();
}
}

public class CGetMessage implements Runnable
{

BufferedReader bufferedReader; // 读取信息流

public CGetMessage(Socket socket)
{
// TODO Auto-generated constructor stub
try {
this.bufferedReader = new BufferedReader(new InputStreamReader(socket.getInputStream()));
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}

@Override
public void run()
{
// TODO Auto-generated method stub
String value = "";
try
{
while (true)
{
value = this.bufferedReader.readLine();
if (null != value && !value.trim().equals(""))
{
System.out.println("服务器说：" + value.trim());
}
}
}
catch (IOException e)
{
// TODO: handle exception
e.printStackTrace();
}
}

}


public class CSendMessage implements Runnable
{

PrintWriter printWriter;
BufferedReader bufferedReader;

public CSendMessage(Socket socket) throws IOException
{
// TODO Auto-generated constructor stub
this.printWriter = new PrintWriter(new BufferedWriter(new OutputStreamWriter(socket.getOutputStream())), true);
this.bufferedReader = new BufferedReader(new InputStreamReader(System.in));
}

@Override
public void run()
{
// TODO Auto-generated method stub
String input = "";
try
{
while (true)
{
input = this.bufferedReader.readLine();
if (null != input && !input.trim().equals(""))
{
this.printWriter.println(input.trim());
}
System.out.print("客户端说：" + input.trim());
}
}
catch (IOException e)
{
// TODO: handle exception
e.printStackTrace();
}
finally
{
this.printWriter.flush();
}
}

}