基于TCP协议的Socdet编程案例

public class LoginThread extends Thread{
Socket socket=null;
public LoginThread(Socket socket){
this.socket=socket;
}
public void run(){
try {
//打开输入/输出流，处理用户请求
InputStream is=socket.getInputStream();
OutputStream os=socket.getOutputStream();
BufferedReader br=new BufferedReader(new InputStreamReader(is));
String info=null;
while(((info=br.readLine())!=null)){
System.out.println("我是服务器，客户端信息为："+info);
}
//给客户端一个响应，向输出流写入信息
String reply="欢迎你，登录成功！";
os.write(reply.getBytes());
//送闭资源
br.close();
os.close();
is.close();
socket.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}

}
}

 

服务器端：

public static void main (String[] args) {
try {
//创建一个ServerSocket对象，指定端口号
ServerSocket serverSocket=new ServerSocket(8800);
Socket socket=null;
//监听一直进行中
while(true){
socket=serverSocket.accept();
LoginThread LoginThread=new LoginThread(socket);
LoginThread.start();
}
} catch (IOException e) {
e.printStackTrace();
}
}
}

客户端：

public static void main(String[] args) {
//创建一个ServerSocket对象，指定端口号
try {
Socket socket=new Socket("localhost",8800);
//打开输入/输出流
OutputStream os=socket.getOutputStream();
InputStream is=socket.getInputStream();
String info="用户名：TOM,密码：1234";
os.write(info.getBytes());
//接收服务器端的响应，从输入流读读取信息
String reply=null;
BufferedReader br=new BufferedReader(new InputStreamReader(is));
while(((reply=br.readLine())!=null)){
System.out.println("我是客户端，服务器的响应为："+reply);;
}
//关闭资源
br.close();
is.close();
os.close();
socket.close();
} catch (UnknownHostException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}