TCP通信程序练习6——多线程实现文件上传

Posted 2020-12-15 pxy-1999

客户端代码：

public class ClientDemo {
    public static void main(String[] args) throws IOException {
        //创建客户端Scoket对象
        Socket s= new Socket("192.168.50.76",44444);

        //封装文本文件数据
        BufferedReader br = new BufferedReader(new FileReader("myNet\\InetAddressDemo.java"));

        //输出流
        BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(s.getOutputStream()));
        String line;
        while ((line = br.readLine())!=null){
            bw.write(line);
            bw.newLine();
            bw.flush();
        }

        //使输出终止
        s.shutdownOutput();

        //客户端接收反馈
        BufferedReader brClient = new BufferedReader(new InputStreamReader(s.getInputStream()));
        String data = brClient.readLine();
        System.out.println("服务器的反馈："+data);

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

服务器端代码：

public class ServerDemo {
    public static void main(String[] args) throws IOException {
        //创建客户端Socket对象
        ServerSocket ss = new ServerSocket(44444);

        //为每一个客户端开启一个线程
        while (true) {
            //监听客户端连接
            Socket s = ss.accept();

            new Thread(new ServerThread(s)).start();
        }

    }
}

实现Runnable接口的SeverThread类：

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

    @Override
    public void run() {
        //接受数据写入到文件
        try {
            BufferedReader br = new BufferedReader(new InputStreamReader(s.getInputStream()));

            //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();

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

运行结果：客户端程序每上传一次文件，服务器都会给出一次反馈