java - SwingWorker 并从套接字检索数据

Question

我有这样的代码

try {
        ServerSocket serverSocket = null;
        try {
            serverSocket = new ServerSocket(888);
        } catch (IOException e) {}

        Socket clientSocket = null;
        try {
            clientSocket = serverSocket.accept();
        } catch (IOException e) {}

        out = new PrintWriter(clientSocket.getOutputStream(), true);
        in = new BufferedReader(new InputStreamReader(clientSocket.getInputStream()));
        String inputLine, outputLine;

        while ((inputLine = in.readLine()) != null) {
            outputLine = "SRV:>"+inputLine+"<:VRS";
            out.println(outputLine);
            taWyjscie.append(outputLine+"\n");
            if (inputLine.equals("Bye."))
                break;
        }

        out.close();
        in.close();
        clientSocket.close();
        serverSocket.close(); 

    } catch (IOException ex) {
        taWyjscie.append("Błąd I/O: "+ex.getLocalizedMessage() + "\n");
    }

它可以工作，但应用程序无法使用，直到客户端发送“再见”。

我希望能够通过 gui 从服务器向客户端发送消息，所以我与 SwingWorker 进行斗争，我得到了这个:

try {
        ServerSocket serverSocket = null;
        try {
            serverSocket = new ServerSocket(888);
        } catch (IOException e) {}

        Socket clientSocket = null;
        try {
            clientSocket = serverSocket.accept();
        } catch (IOException e) {}

        out = new PrintWriter(clientSocket.getOutputStream(), true);
        in = new BufferedReader(new InputStreamReader(clientSocket.getInputStream()));
        String inputLine, outputLine;

        zadanie = new ServerTask(in);

    } catch (IOException ex) {
        taWyjscie.append("Błąd I/O: "+ex.getLocalizedMessage() + "\n");
    }

 private class ServerTask extends SwingWorker<String, String> {
    private BufferedReader iin;

    public ServerTask(BufferedReader win) {
        this.iin = win;
    }


    @Override
    protected String doInBackground() throws Exception {
        String input;
        while ((input = iin.readLine()) != null) {
            System.out.println(input);
            publish(input);
            if (isCancelled())
                break;
        }
        return null;
    }
    @Override
    protected void process(List<String> chunks) {
        for(String el : chunks) {
            textAreaOUT.append(el+"\n");
        }
    }

}

现在我无法从服务器向客户端发送消息，但来自客户端的消息不会显示在文本区域中。我从早上就开始战斗，我不知道 Swingworker 是如何工作的......

PS。前面的 try ... catch 位于按钮操作执行函数中(如果有任何区别)

Answer 1

您从未在 SwingWorker 上调用 execute，这是您的第一个错误。从那里开始..