我目前正在尝试制作一个简单的程序，该程序将从客户端向服务器发送整数数组。然后SERVER将数组排序回CLIENT，每个类都在使用JavaFX创建一个阶段来显示消息。但是我不知道为什么，当我打开服务器然后打开客户端没有响应的客户端时。
public class Client extends Application {
//IO Streams of data
ObjectOutputStream toServer = null;
ObjectInputStream fromServer = null;
final int size = 1000; //list size
int[] list = new int[size];
int[] list2 = new int[size];
Random randomNum = new Random();
@Override
public void start(Stage primaryStage) {
//propeties of the layouts
TextArea textConsole = new TextArea();
Button random = new Button("random");
Button send = new Button("send");
HBox buttons = new HBox();
buttons.getChildren().addAll(random, send);
VBox vbox = new VBox();
vbox.getChildren().addAll(textConsole, buttons);
//create a scene to place it in the stage
Scene scene = new Scene(vbox, 450, 300);
primaryStage.setTitle("Cilent");
primaryStage.setScene(scene);
primaryStage.show();
//random the number from -2000 to 2000
for (int i = 0; i < list.length; i++) {
list[i] = ((int) randomNum.nextInt(2000 - (-2000) + 1) - 2000);
// System.out.println("number is "+list[i]);
}
//set action on random button.
random.setOnAction(e -> {
try {
//send array to server
toServer.writeObject(list);
toServer.flush();
//get sorted list from the server
list2 = (int[]) fromServer.readObject();
//display the text into console
for (int i = 0; i < list2.length; i++) {
textConsole.appendText("Number is " + list2[0] + "\n");
}
} catch (Exception ex) {
textConsole.appendText(ex.toString() + "\n");
}
});
//set connection
try {
//create a socket to connect to the server;
Socket socket = new Socket("localhost", 8000);
//create an input stream to receve data from the server
fromServer = new ObjectInputStream(socket.getInputStream());
//create an ouput stream to send data to server
toServer = new ObjectOutputStream(socket.getOutputStream());
} catch (IOException ex) {
textConsole.appendText(ex.toString() + "\n");
}
}
/**
* @param args the command line arguments
*/
public static void main(String[] args) {
launch(args);
}
} 公共类服务器扩展应用程序{
//array list to hold the data
int[] list = new int[1000];
@Override
public void start(Stage primaryStage) {
//text area for displaying the contents
TextArea textConsole = new TextArea();
Scene scene = new Scene(new ScrollPane(textConsole), 300, 250);
primaryStage.setTitle("Server");
primaryStage.setScene(scene);
primaryStage.show();
new Thread(() -> {
try { //create a server socket
ServerSocket serverSocket = new ServerSocket(8000);
Platform.runLater(()
-> textConsole.appendText("Server started at" + new Date() + "\n"));
//listen for a conncetion request
Socket socket = serverSocket.accept();
//create data input and output
ObjectInputStream fromCilent = new ObjectInputStream(socket.getInputStream());
ObjectOutputStream toCilent = new ObjectOutputStream(socket.getOutputStream());
while (true) {
try {
//received the array list from cilent
list = (int[]) fromCilent.readObject();
//once recevied the data, make a merge sort
ParallelMergeSort.parallelMergeSort(list);
//send back to cilent
toCilent.writeObject(list);
} catch (Exception ex) {
ex.printStackTrace();
}
//updated the UI
Platform.runLater(() -> {
for (int i = 0; i < list.length; i++) {
textConsole.appendText("data received from Cilent:" + list[i] + '\n');
}
});
}
} catch (IOException ex) {
textConsole.appendText(ex.toString() + "\n");
}
}).start();//start the thread
}
/**
* @param args the command line arguments
*/
public static void main(String[] args) {
launch(args);
}
}