java BufferedReader未正确读取数据

1 月 Questions & Answers 89

我有一个TCP服务器客户端对。客户端有一个线程来处理来自服务器的数据。问题是，在从服务器接收第一个数据之前，缓冲读取器被阻塞。但一旦接收到第一个数据，它就会在有用数据之间继续发送0。有人知道为什么吗？如何解决这个问题

    connection = new Socket(ip, port);
    output = new DataOutputStream(connection.getOutputStream());
    input = new BufferedReader(new InputStreamReader(connection.getInputStream()));

此部分经过修改以处理0，但这并不理想：

 try {
                opcode = (char) input.read();
            } catch (IOException ex) {
                ErrorFrame erfframe = new ErrorFrame("De verbinding is verbroken voordat we de opcode van het packet konden lezen", "Herverbinden", IRIGui.ConnectionType);
            }
            System.out.println("Data received!!" + opcode);
            int opcodenr = Character.getNumericValue(opcode);
            char sensortype = '0';
            try {
                do {
                    sensortype = (char) input.read();
                } while (sensortype == 0);

            } catch (IOException ex) {
                ErrorFrame erfframe = new ErrorFrame("De verbinding is verbroken voordat we de sensortype van het packet konden lezen", "Herverbinden", IRIGui.ConnectionType);
            }

服务器代码：

公共静态void main（字符串argv[]）引发异常{ ServerSocket welcomeSocket=新的ServerSocket（25566）

while (true) {
    Socket connectionSocket = welcomeSocket.accept();
    BufferedReader inFromClient =
            new BufferedReader(new InputStreamReader(connectionSocket.getInputStream()));
    DataOutputStream outToClient = new DataOutputStream(connectionSocket.getOutputStream());
    int request = inFromClient.read();
    System.out.println("erjioejfioe " + request);
    if (request == 4) {
        outToClient.writeBytes("41");
        outToClient.write(5);
        outToClient.writeInt(5);
        outToClient.writeInt(3);
        outToClient.writeInt(6);
        outToClient.writeInt(5);
        outToClient.writeInt(1);
    }
    request = 0;
    request = inFromClient.read();
    System.out.println("erjioejfioe " + request);
    if (request == 4) {
        System.out.println("SENDING THE SHIT");
        outToClient.writeBytes("41");
        outToClient.write(5);
        outToClient.writeInt(3);
        outToClient.writeInt(7);
        outToClient.writeInt(2);
        outToClient.writeInt(4);
        outToClient.writeInt(3);
        System.out.println("We get here!!");
    }
    break;
}

}

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java BufferedReader未正确读取数据

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