Java BufferedReader只读取一次

时间:2013-11-03 03:22:31

标签: java networking bufferedreader

我正在编写一个解析操作码的服务器(只是一个简单的小爱好MMO服务器来教我自己的绳索;此刻它有点乱)我无法让服务器解析第二个操作码。我不确定是什么问题。每个操作码的格式是一个8字节的头,比如PRINTMSG,然后是主体,在这种情况下可以是诸如Hello之类的消息。每个操作码都以“|”结尾。我的代码似乎正在正确地获取和解析每个操作码,但是它没有执行任何超过第一个操作码的操作,这使我相信有一些我对BufferedReaders没有理解的东西。我正在使用read()读取它,并将每个字符存储在48字节的数组中。 Autoflushing设置为true。

以下是相关的服务器代码:

public String readInputStream() {
    String msg = "";
    char[] charArray = new char[48];
    short i = 0;
    char current = '#';
    int characterInt = -1;

    while (current != '|') {
        try {
            if (in.ready()) {
                characterInt = in.read();
                if (characterInt == (-1)) continue;
                current = (char) characterInt;
                if (current == '|') break;
                charArray[i] = current;
                //if ((charArray[i] == 'n') && (charArray[i-1] == '\\')) {
                //  charArray = new char[48];
                //}

                i++;
            }

        }


        catch (IOException e) {
            System.out.println("Error reading input stream in server ConnectionThread");
            if (DEBUGMODE) System.exit(1);
        }
    }

    msg = new String(charArray);
    msg = msg.substring(0,i);
    return msg;
}
public static void printMsg(String msg) {
    System.out.println("(Op-PRINTMSG): " +msg+"\n");
}



public static void executeOpCode(String op, String body) {
        if (op.equals("ABSPLAYX")) receivedPlayerAbsoluteX(body);
        else if (op.equals("ABSPLAYY")) receivedPlayerAbsoluteY(body);
        else if (op.equals("FIRSTVOL")) requestVolley();
        else if (op.equals("SECNDVOL")) returnVolley(body);
        else if (op.equals("PRINTMSG")) printMsg(body);

    }

主循环:

public void run() {

    while (shouldBeListening) {
        //Main loop for the connection thread
        String op = readInputStream();
        //If stream has data, add the opcodes to opQueue.
        if (op != ("")) {
            separateOpsFromStream(op, incomingOpQueue);
        }

        //Extract incoming opcode head and body, then execute.
        //This executes everything in the queue before moving on.
        while (incomingOpQueue.size() > 0) {

            op = incomingOpQueue.poll();
            if (op != "") {
                String opHeader = OpCodeOperations.readHeader(op);
                String opBody = OpCodeOperations.readBody(op);
                playerData.executeOpCode(opHeader, opBody);
            }
        }


    }


}

3 个答案:

答案 0 :(得分:0)

您是否尝试过标记并重置阅读器?

 bufferedReader.mark(0);
 bufferedReader.reset();

答案 1 :(得分:0)

好吧,我没有完全理解你的问题,但这是我的建议。您是否尝试修改邮件?每条消息都必须以" / n"或EOL标记结束。可能是那个吗?

答案 2 :(得分:-1)

变化:

if (op != "")

为:

if (!op.isEmpty())