Sockets 将BufferedReader作为类构造函数的参数传递

我已经建立了一个网络，并将读写流设置为套接字，如下所示：

//Set up socket reads and writes
final BufferedReader in = new BufferedReader(
    new InputStreamReader(client.getInputStream()));

final PrintWriter out = new PrintWriter(
    client.getOutputStream(), true);

我想传递两个变量“in”和“out”，作为另一个类构造函数的参数。这是它在另一个类中的外观

BufferedReader in;
PrintWriter out;

public ClientThread(BufferedReader in, PrintWriter out) {
    this.in = in;
    this.out = out;

}

然后我想使用这些类变量像这样写入同一套接字的输出流（该类实现Runnable）：

但是，每当代码达到这一点时，我就会得到一个SocketException：

java.net.SocketException: Socket closed

我怎样才能解决这个问题？我想将服务器和套接字的设置与客户机发出的任何命令的处理分开

---

编辑：下面是BufferedRead从中获取输入的内容

//create server socket
ServerSocket server = new ServerSocket(portNum);

// Accept a client if it appears
Socket client = server.accept();

---

编辑2：我使用了以下三个文件：

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.Socket;
import java.net.UnknownHostException;


public class Client {

    public static void main(String[] args) throws UnknownHostException, IOException {
        //Change the socket if it doesn't work
        Socket sock = new Socket("localhost", 5920);

        //keyboard
        final BufferedReader stdin = new BufferedReader(
                new InputStreamReader(System.in));

        //input from socket
        final BufferedReader in = new BufferedReader(
                new InputStreamReader(sock.getInputStream()));

        //writer to socket
        final PrintWriter out = new PrintWriter(
                sock.getOutputStream(), true);

        //new thread for incoming messages
        (new Thread(){

            @Override
            public void run() {
                String serverMessage;

                try {
                    while ((serverMessage = in.readLine()) != null) {
                        System.out.println(serverMessage);

                    }
                } catch (IOException e) {
                    System.err.println("Something went wrong whilst trying "
                            + "to retrieve a message from the server");
                    System.exit(-1);
                }
            }
        }).start();

        //new thread for outgoing messages
        (new Thread(){

            @Override
            public void run() {
                String clientMessage;

                try {
                    while ((clientMessage = stdin.readLine()) != null) {
                        out.println(clientMessage);

                    }
                } catch (IOException e) {
                    System.err.println("Something went wrong whilst trying "
                            + "to send a message to the server.");
                    System.exit(-1);
                }

            }

        }).start();

    }

}

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.ServerSocket;
import java.net.Socket;


public class Server {

    public static void main(String[] args) throws IOException {
        ServerSocket server = new ServerSocket(5920);

        Socket client = server.accept();

        //Set up socket reads and writes
        final BufferedReader in = new BufferedReader(
                new InputStreamReader(client.getInputStream()));

        final PrintWriter out = new PrintWriter(
                client.getOutputStream(), true);

        new Thread(new ClassWithParam(in, out)).start();

    }

}

import java.io.BufferedReader;
import java.io.IOException;
import java.io.PrintWriter;


public class ClassWithParam implements Runnable {

    BufferedReader in;
    PrintWriter out;

    public ClassWithParam(BufferedReader in, PrintWriter out) {
        this.in = in;
        this.out = out;

    }

    @Override
    public void run() {
        while (true) {
            try {
                System.out.println("HERE");
                String userCommand = in.readLine();
                System.out.println("HERE2");
            } catch (IOException e) {
                // Die if something goes wrong.
                System.err.println(e.toString());
                System.exit(1);
            }
        }

    }

}

---

现在它开始工作了。我不知道发生了什么。将头撞在墙上。谢谢。

出于某种原因，现在没有问题了。我使用的代码（我重新创建的），现在可以使用了，在描述中。

好吧，可能连接已经关闭了。这与在构造函数中使用BufferedReader无关。我们目前无法真正帮助您，因为我们对连接的内容一无所知。这有帮助吗//创建服务器套接字ServerSocket server=newserversocket（portNum）；//如果出现Socket client=server.Accept（），则接受客户端；不是真的。。。我们仍然没有足够的上下文，所有的信息都应该在问题中，而不是在评论中。理想情况下，你应该展示一个简短但完整的程序（或者更可能是一对程序），我们可以用它来重现这个问题together@JonSkeet当我重新创建代码时，这个问题就消失了，现在我恨我自己。

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.Socket;
import java.net.UnknownHostException;


public class Client {

    public static void main(String[] args) throws UnknownHostException, IOException {
        //Change the socket if it doesn't work
        Socket sock = new Socket("localhost", 5920);

        //keyboard
        final BufferedReader stdin = new BufferedReader(
                new InputStreamReader(System.in));

        //input from socket
        final BufferedReader in = new BufferedReader(
                new InputStreamReader(sock.getInputStream()));

        //writer to socket
        final PrintWriter out = new PrintWriter(
                sock.getOutputStream(), true);

        //new thread for incoming messages
        (new Thread(){

            @Override
            public void run() {
                String serverMessage;

                try {
                    while ((serverMessage = in.readLine()) != null) {
                        System.out.println(serverMessage);

                    }
                } catch (IOException e) {
                    System.err.println("Something went wrong whilst trying "
                            + "to retrieve a message from the server");
                    System.exit(-1);
                }
            }
        }).start();

        //new thread for outgoing messages
        (new Thread(){

            @Override
            public void run() {
                String clientMessage;

                try {
                    while ((clientMessage = stdin.readLine()) != null) {
                        out.println(clientMessage);

                    }
                } catch (IOException e) {
                    System.err.println("Something went wrong whilst trying "
                            + "to send a message to the server.");
                    System.exit(-1);
                }

            }

        }).start();

    }

}

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.ServerSocket;
import java.net.Socket;


public class Server {

    public static void main(String[] args) throws IOException {
        ServerSocket server = new ServerSocket(5920);

        Socket client = server.accept();

        //Set up socket reads and writes
        final BufferedReader in = new BufferedReader(
                new InputStreamReader(client.getInputStream()));

        final PrintWriter out = new PrintWriter(
                client.getOutputStream(), true);

        new Thread(new ClassWithParam(in, out)).start();

    }

}

import java.io.BufferedReader;
import java.io.IOException;
import java.io.PrintWriter;


public class ClassWithParam implements Runnable {

    BufferedReader in;
    PrintWriter out;

    public ClassWithParam(BufferedReader in, PrintWriter out) {
        this.in = in;
        this.out = out;

    }

    @Override
    public void run() {
        while (true) {
            try {
                System.out.println("HERE");
                String userCommand = in.readLine();
                System.out.println("HERE2");
            } catch (IOException e) {
                // Die if something goes wrong.
                System.err.println(e.toString());
                System.exit(1);
            }
        }

    }

}