TCP接收和传输练习的优化

cilent

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package it_08;

import java.io.*;
import java.net.Socket;

//客户端
public class Demo3 {
    public static void main(String[] args) throws IOException {
        Socket socket = new Socket("127.0.0.1",9090);
        BufferedReader br = new BufferedReader(new FileReader("server.txt"));
        OutputStream outputStream = socket.getOutputStream();
        BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(outputStream));
        String len;
        while((len=br.readLine())!=null){
            bw.write(len);
            bw.newLine();
            bw.flush();
        }
        //定义结束标记
        socket.shutdownOutput();
        //接收反馈
        InputStream inputStream = socket.getInputStream();
        byte[] bys = new byte[1024];
        int lent = inputStream.read(bys);
        System.out.println(new String(bys,0,lent));

        br.close();
        socket.close();
    }
}

server

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package it_08;

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

public class Demo4 {
    public static void main(String[] args) throws IOException {
        ServerSocket ss = new ServerSocket(9090);
        Socket socket = ss.accept();
        InputStream inputStream = socket.getInputStream();
        BufferedReader br = new BufferedReader(new InputStreamReader(inputStream));
        BufferedWriter bw = new BufferedWriter(new FileWriter("server2.txt"));
        String line;
        while ((line=br.readLine())!=null){
                bw.write(line);
                bw.newLine();
                bw.flush();
            }
        //给出反馈
        OutputStream outputStream = socket.getOutputStream();
        outputStream.write("数据接收完毕".getBytes());

        ss.close();
        socket.close();
        bw.close();
    }
}