Java多线程实现文件上传

Posted 2021-12-24 uoshuan

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

/*
    客户端：数据来自于文本文件，接收服务器反馈
 */
public class ClientDemo 
    public static void main(String[] args) throws IOException 
        //创建客户端Socket对象
        Socket s = new Socket("192.168.1.66",10000);

        //封装文本文件的数据
        BufferedReader br = new BufferedReader(new FileReader("myNet\\\\InetAddressDemo.java"));
        //封装输出流写数据
        BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(s.getOutputStream()));

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

        s.shutdownOutput();

        //接收反馈
        BufferedReader brClient = new BufferedReader(new InputStreamReader(s.getInputStream()));
        String data = brClient.readLine(); //等待读取数据
        System.out.println("服务器的反馈：" + data);

        //释放资源
        br.close();
        s.close();
    

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

/*
    服务器：接收到的数据写入文本文件，给出反馈，代码用线程进行封装，为每一个客户端开启一个线程
 */
public class ServerDemo 
    public static void main(String[] args) throws IOException 
        //创建服务器Socket对象
        ServerSocket ss = new ServerSocket(10000);

        while (true) 
            //监听客户端连接，返回一个对应的Socket对象
            Socket s = ss.accept();
            //为每一个客户端开启一个线程
            new Thread(new ServerThread(s)).start();
        

//        ss.close();
    

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 
            //接收数据写到文本文件
            BufferedReader br = new BufferedReader(new InputStreamReader(s.getInputStream()));
//            BufferedWriter bw = new BufferedWriter(new FileWriter("myNet\\\\Copy.java"));
            //解决名称冲突问题
            int count = 0;
            File file = new File("myNet\\\\Copy["+count+"].java");
            while (file.exists()) 
                count++;
                file = new File("myNet\\\\Copy["+count+"].java");
            
            BufferedWriter bw = new BufferedWriter(new FileWriter(file));

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

            //给出反馈
            BufferedWriter bwServer = new BufferedWriter(new OutputStreamWriter(s.getOutputStream()));
            bwServer.write("文件上传成功");
            bwServer.newLine();
            bwServer.flush();

            //释放资源
            s.close();
         catch (IOException e) 
            e.printStackTrace();