JAVA TLS SOCKETS：bufferedreader.ready() 总是假的

Question

我想使用 TLS 编写一个小的“聊天”程序

我在使用 SSL 套接字和输入流时遇到问题。 TLS 部分工作正常。

我的问题是：“bufferedreader.ready()”总是返回false。 如果我删除 teh if -satetmant if 工作“正常”。程序一直等到有 \n 或 \r 并打印到 System.out。但是那段时间我不能发消息。

“客户”

  InputStream inputstream = System.in;
  InputStreamReader inputstreamreader = new InputStreamReader(inputstream);
  BufferedReader bufferedreader = new BufferedReader(inputstreamreader);

        InputStream inputstream1 = socket.getInputStream();
        InputStreamReader inputstreamreader1 = new InputStreamReader(inputstream1);
        BufferedReader bufferedreader1 = new BufferedReader(inputstreamreader1);

        OutputStream outputstream = socket.getOutputStream();
        OutputStreamWriter outputstreamwriter = new OutputStreamWriter(outputstream);
        BufferedWriter bufferedwriter = new BufferedWriter(outputstreamwriter);

        OutputStream outputstream1 = System.out;
        OutputStreamWriter outputstreamwriter1 = new OutputStreamWriter(outputstream1);
        BufferedWriter bufferedwriter1 = new BufferedWriter(outputstreamwriter1);
        //Mitteilen, welchen Kommprofil zum verbindugn genutzt werden soll.
        bufferedwriter.write("bez\n");

        while (true) {

            if (bufferedreader.ready()) {
                bufferedwriter.write(bufferedreader.readLine() + '\n');
                bufferedwriter.flush();
            }
            if (bufferedreader1.ready()) {
                bufferedwriter1.write(bufferedreader1.readLine() + '\n');
                bufferedwriter1.flush();
            }


        }

“服务器”：

 InputStream inputstream = sslsocket.getInputStream();
    InputStreamReader inputstreamreader = new InputStreamReader(inputstream);
    BufferedReader bufferedreader = new BufferedReader(inputstreamreader);

        InputStream inputstream1 = System.in;
        InputStreamReader inputstreamreader1 = new InputStreamReader(inputstream1);
        BufferedReader bufferedreader1 = new BufferedReader(inputstreamreader1);

        OutputStream outputstream = System.out;
        OutputStreamWriter outputstreamwriter = new OutputStreamWriter(outputstream);
        BufferedWriter bufferedwriter = new BufferedWriter(outputstreamwriter);

        OutputStream outputstream1 = sslsocket.getOutputStream();
        OutputStreamWriter outputstreamwriter1 = new OutputStreamWriter(outputstream1);
        BufferedWriter bufferedwriter1 = new BufferedWriter(outputstreamwriter1);



        while (true ) {
            if (bufferedreader.ready()) {
                bufferedwriter.write(bufferedreader.readLine() + '\n');
                bufferedwriter.flush();

            }
            if (bufferedreader1.ready()) {
                bufferedwriter1.write(bufferedreader1.readLine() + '\n');
                bufferedwriter1.flush();

            }

        }

Answer 1

因为您在循环中没有其他事情可做除了调用 readLine()，只需调用它即可。它会阻塞直到有东西到达。在这种情况下，甚至在任何情况下，您都不需要调用 ready()。

Answer 2

我用这个解决方法“解决了”我的问题：

public class CopyStreamThread extends Thread {

    private BufferedWriter out;
    private BufferedReader in;

    public CopyStreamThread(BufferedWriter out, BufferedReader in) {
        this.out = out;
        this.in = in;
    }

    @Override
    public void run() {
        while (true) {
            try {
                out.write(in.readLine() + '\n');
                out.flush();
            } catch (IOException ex) {
                Logger.getLogger(CopyStreamThread.class.getName()).log(Level.SEVERE, null, ex);
            }
        }
    } 

“客户端/服务器”

new CopyStreamThread(bufferedwriter, bufferedreader).start();
        new CopyStreamThread(bufferedwriter1, bufferedreader1).start();

我将等待输入分为 2 个线程，这不是一个很好的解决方案，但它可以工作。

感谢支持。