TCP通信程序联系（多线程实现文件上传）

服务端类

package Internet;

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

public class ServerDemo6 {
    public static void main(String[] args) throws IOException {
        ServerSocket s=new ServerSocket(10067);
while (true){
        Socket s1=s.accept();
        new Thread(new ServerThread(s1)).start();
    }
}}

客户端类

package Internet;

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

public class ClientDemo6 {
    public static void main(String[] args) throws IOException {
        Socket s=new Socket("LAPTOP-KV7P55J0", 10067);

        BufferedWriter bw= new BufferedWriter(new OutputStreamWriter(s.getOutputStream()));
        BufferedReader br=new BufferedReader(new FileReader("D:\\untitled\\src\\Internet\\qq"));

        String line;
        while ((line= br.readLine())!=null){
            bw.write(line);
            bw.newLine();
            bw.flush();
        }
   s.shutdownOutput();

        BufferedReader br1=new BufferedReader(new InputStreamReader(s.getInputStream()));
        String line1;
        while ((line1= br1.readLine())!=null){
            System.out.println(line1);
        }

        s.close();

    }
}

ServerThread类

package Internet;

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

public class ServerThread implements Runnable {
    private Socket s;
    public ServerThread(Socket s){
        this.s=s;
    }

    @Override
    public void run() {
        try {
            BufferedReader br=new BufferedReader(new InputStreamReader(s.getInputStream()));
            int count=0;
            File file=new File("D:\\untitled\\src\\Internet\\["+count+"].txt");
            while (file.exists()){
                count++;
                file=new File("D:\\untitled\\src\\Internet\\["+count+"].txt");
            }
            BufferedWriter bw=new BufferedWriter(new FileWriter(file));
            String line;
            while ((line= br.readLine())!=null){
                bw.write(line);
                bw.newLine();
                bw.flush();
            }
            BufferedWriter bw1=new BufferedWriter(new OutputStreamWriter(s.getOutputStream()));
            bw1.write("文件已经收到");
            bw1.newLine();
            bw1.close();
        }catch (IOException e){
            e.printStackTrace();
        }


    }
}