如何从客户端服务器套接字连接读取响应？

Question

I am executing shell commands from my Android APP. I am able to execute the command but unable to read the response from Server. My code is as follows :

public String executeThroughSocket(int portNo, String portAddress, String command) throws IOException {

    StringBuilder responseString = new StringBuilder();

    PrintWriter writer = null;
    BufferedReader bufferedReader = null;
    Socket clientSocket = null;

    try {
        clientSocket = new Socket(portAddress, portNo);
        if (!clientSocket.isConnected())
            throw new SocketException("Could not connect to Socket");

        clientSocket.setKeepAlive(true);

        writer = new PrintWriter(clientSocket.getOutputStream(), true);
        writer.println(command);
        writer.flush();

        bufferedReader = new BufferedReader(new InputStreamReader(clientSocket.getInputStream()));
        String str;
        while ((str = bufferedReader.readLine()) != null) {
            responseString.append(str);
        }

    } finally {
        if (writer != null)
            writer.close();
        if (bufferedReader != null)
            bufferedReader.close();
        if (clientSocket != null)
            clientSocket.close();
    }
    return responseString.toString();
}

Answer 1

There is nothing wrong with my code. It was the server that was not sending any response.

Answer 2

You have to set timeout for socket

clientSocket .setSoTimeout(5000); // milisekundy