Java——socket

Server：

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

public class Server {

    /**
     * Socket服务端
     */
    public static void main(String[] args) {
        try {
            ServerSocket serverSocket = new ServerSocket(8888);
            System.out.println("服务端已启动，等待客户端连接..");

            while (true) {
                Socket socket = serverSocket.accept();// 侦听并接受到此套接字的连接,返回一个Socket对象
                SocketThread socketThread = new SocketThread(socket);
                socketThread.start();
            }

        } catch (IOException e) {
            e.printStackTrace();
        }
    }

}

Client:

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

public class Client {

    /**
     * Socket客户端
     */
    public static void main(String[] args) {
        try {
            //创建Socket对象
            Socket socket=new Socket("localhost",8888);

            //根据输入输出流和服务端连接
            OutputStream outputStream=socket.getOutputStream();//获取一个输出流，向服务端发送信息
            PrintWriter printWriter=new PrintWriter(outputStream);//将输出流包装成打印流
            printWriter.print("服务端你好，我是客户1");
            printWriter.flush();
            socket.shutdownOutput();//关闭输出流

            InputStream inputStream=socket.getInputStream();//获取一个输入流，接收服务端的信息
            InputStreamReader inputStreamReader=new InputStreamReader(inputStream);//包装成字符流，提高效率
            BufferedReader bufferedReader=new BufferedReader(inputStreamReader);//缓冲区
            String info="";
            String temp=null;//临时变量
            while((temp=bufferedReader.readLine())!=null){
                info+=temp;
                System.out.println("客户端接收服务端发送信息："+info);
            }

            //关闭相对应的资源
            bufferedReader.close();
            inputStream.close();
            printWriter.close();
            outputStream.close();
            socket.close();
        } catch (UnknownHostException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }

    }

}