tcp文件上传--多个客户端

1.client

public static void main(String[] args) throws IOException {
        // 创建客户端Socket对象
        Socket s = new Socket("192.168.12.92", 11111);

        // 封装文本文件
        // BufferedReader br = new BufferedReader(new FileReader(
        // "InetAddressDemo.java"));
        BufferedReader br = new BufferedReader(new FileReader(
                "ReceiveDemo.java"));
        // 封装通道内流
        BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(
                s.getOutputStream()));

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

        // Socket提供了一个终止，它会通知服务器你别等了，我没有数据过来了
        s.shutdownOutput();

        // 接收反馈
        BufferedReader brClient = new BufferedReader(new InputStreamReader(
                s.getInputStream()));
        String client = brClient.readLine(); // 阻塞
        System.out.println(client);

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

2.server

public static void main(String[] args) throws IOException {
        // 创建服务器Socket对象
        ServerSocket ss = new ServerSocket(11111);

        while (true) {
            Socket s = ss.accept();
            new Thread(new UserThread(s)).start();
        }
    }

3.UserThread

public class UserThread implements Runnable {
    private Socket s;

    public UserThread(Socket s) {
        this.s = s;
    }

    @Override
    public void run() {
        try {
            // 封装通道内的流
            BufferedReader br = new BufferedReader(new InputStreamReader(
                    s.getInputStream()));
            // 封装文本文件
            // BufferedWriter bw = new BufferedWriter(new
            // FileWriter("Copy.java"));

            // 为了防止名称冲突
            String newName = System.currentTimeMillis() + ".java";
            BufferedWriter bw = new BufferedWriter(new FileWriter(newName));

            String line = null;
            while ((line = br.readLine()) != null) { // 阻塞
                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
            bw.close();
            s.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

}