Question

所以，我有一个不公开的线程类，因为它放在服务器类中。我有一个与clientSocket类交互的clientWindow类。 clientWindow类接受输入并将其发送到服务器。没有连接问题。 clientWindow类通过调用将变量（getString(String s)）设置为该字符串clientIn的方法（s）将String传递给服务器。我有它，所以线程类syso内部的方法是一条消息："clientIn was set by the client. " + clientIn"。请注意，clientIn是公开的和静态的。当执行线程类的run方法时，它运行以下代码：

ClientWindow cw = new ClientWindow();
int maxClientsCount = this.maxClientsCount;

//maxClientsCount is just 15.

clientThread[] threads = this.threads;
try {
    /*
     * Create input and output streams for this client.
     */
    is = new DataInputStream(clientSocket.getInputStream());
    os = new PrintStream(clientSocket.getOutputStream());

    //getting the player's name. (unincluded code)

    os.println("Welcome " + name);

    //sets the clientname to the name of the client which is stored in 
    //threads.(unincluded code)

    //this for loop sends the message to all clients.
    for (int i = 0; i < maxClientsCount; i++) {
        if (threads[i] != null) {
            threads[i].os.println("new user " + name + " entered");
        }
    }

    //waits until there are at least 2 players connected until the game can 
    //start (unincluded code)

    ZombieDiceServer.waitStart();

该方法只是使得启动按钮启用并且while循环等待直到管理员按下该按钮以启动游戏。在此期间，玩家仍可以连接。

//(unincluded game code)

synchronized (this) {
    String restart = "";
    System.out.println("clientIn: " + clientIn);
    while (true) {
        restart = clientIn;
        if (!clientIn.isEmpty()) {
            //the following for loop prints out the given string to all 
            //threads/clients.
            for (int i = 0; i < maxClientsCount; i++) {
                if (threads[i] != null) {
                    threads[i].os.println("<" + name + "> " + clientIn);
                }
            }
        }
        //(unnecessary code)
    }
}

getString(String s)方法如下：

public static void getString(String s) {
    clientIn = s;
    System.out.println("clientIn was set by the client. " + clientIn);
}

ClientSocket控制台输出：

responseLine: Enter your name.
responseLine: *** A new user M entered the chat room !!! ***
responseLine: Welcome B to Zombie Dice.
clientIn was set by the client. B
responseLine: To leave, enter "/quit" in a new line.
responseLine: Please wait while other players join!
responseLine: *** A new user B entered the chat room !!! ***
clientIn was set by the client. hi

ZombieDiceServer控制台输出：

clientIn was called. 
clientIn at start: 
clientIn was called. 
clientIn at start: 
clientIn: 
clientIn:

请注意，在线程中调用该方法的客户端会记住它，但不会记住它被发送到的线程。为什么？！

类变量不断重置

0 个答案: