java下tcp的socket连接案例

package cn.stat.p4.ipdemo;

import java.io.BufferedReader;
import java.io.IOException;

import java.io.InputStreamReader;

import java.io.PrintWriter;
import java.net.ServerSocket;
import java.net.Socket;

public class serverDemo {

    /**
     * @param args
     * @throws IOException
     */
    public static void main(String[] args) throws IOException {
        //创建服务器对像
        ServerSocket ss=new ServerSocket(1000);
        //获取连接过来的客户端对像
        Socket s=ss.accept();

        //通过socket对象获取输入流，要读取客户端发过来的数据\
        BufferedReader bufin=new BufferedReader(new InputStreamReader(s.getInputStream()));

        //4,获取socket的输出流，并装饰。
                PrintWriter out = new PrintWriter(s.getOutputStream(),true);

        String line=null;

        while((line=bufin.readLine())!=null)
        {
            System.out.println(line);
            //发送
            out.println(line.toUpperCase());

        }    

        s.close();
        ss.close();        

    }

}

package cn.stat.p4.ipdemo;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.Socket;
import java.net.UnknownHostException;

public class clentDemo {

    /**
     * @param args
     * @throws IOException
     * @throws UnknownHostException
     */
    public static void main(String[] args) throws UnknownHostException, IOException {
        //创建连接对像
        Socket socket=new Socket("192.168.1.103",1000);

        //获取键盘输入
        BufferedReader bufr=new BufferedReader(new InputStreamReader(System.in));

        //获取输出流对像
        PrintWriter pw=new PrintWriter(socket.getOutputStream(),true);
        //获取返回数据
        BufferedReader bufin=new BufferedReader(new InputStreamReader(socket.getInputStream()));
        String line=null;

        while((line=bufr.readLine())!=null)
        {
            if(line.equals("over"))
                break;
            System.out.println(line);
            pw.println(line);

            String uptext=bufin.readLine();
            System.out.println(uptext);

        }

        socket.close();

    }

}