JavaFX网络后台任务与javafx.concurrent
问题描述：
我正在实施一个JavaFX应用程序，它是通过wifi（android）与移动电话进行通信。JavaFX网络后台任务与javafx.concurrent
因此，我对JavaFX的一个服务器线程在后台进程运行：
public class NetworkService implements Runnable {
private final ServerSocket serverSocket;
private final ExecutorService pool;
private RoutePlannerJFX application;
private UserData userData;
public NetworkService(ExecutorService pool,
ServerSocket serverSocket,
RoutePlannerJFX app,
UserData data) {
this.serverSocket = serverSocket;
this.pool = pool;
application = app;
userData = data;
}
public void run() {
try {
while (true) {
Socket cs = serverSocket.accept();
pool.execute(new Handler(serverSocket, cs, application, userData));
}
} catch (IOException ex) {
System.out.println("--- Interrupt NetworkService-run");
}
finally {
System.out.println("--- Ende NetworkService(pool.shutdown)");
pool.shutdown(); //keine Annahme von neuen Anforderungen
try {
pool.awaitTermination(4L, TimeUnit.SECONDS);
if (!serverSocket.isClosed()) {
System.out.println("--- Ende NetworkService:ServerSocket close");
serverSocket.close();
}
} catch (IOException e) { }
catch (InterruptedException ei) { }
}
}
}
具有处理程序：
public class Handler implements Runnable {
private final Socket client;
private final ServerSocket serverSocket;
private RoutePlannerJFX application;
private UserData userData;
Handler(ServerSocket serverSocket,Socket client, RoutePlannerJFX app, UserData data) {
this.client = client;
this.serverSocket = serverSocket;
application = app;
userData = data;
}
public void run() {
StringBuffer sb = new StringBuffer();
PrintWriter out = null;
try {
System.out.println("running service, " + Thread.currentThread());
out = new PrintWriter(client.getOutputStream(), true);
BufferedReader bufferedReader =
new BufferedReader(
new InputStreamReader(
client.getInputStream()));
char[] buffer = new char[100];
int anzahlZeichen = bufferedReader.read(buffer, 0, 100);
String nachricht = new String(buffer, 0, anzahlZeichen);
String[] werte = nachricht.split("\\s");
System.out.println(nachricht+"\n");
POI poi = new POI(nachricht);
userData.addItemToPoiList(poi);
application.setScene("INSTRUCT");
} catch (IOException e) {System.out.println("IOException, Handler-run");}
finally {
System.out.println(sb); //Rückgabe Ergebnis an den Client
if (!client.isClosed()) {
System.out.println("****** Handler:Client close");
try {
client.close();
} catch (IOException e) { }
}
}
}
}
应用程序有一个公共的方法来改变场景（setScene （））。
这就是我希望我能做到的方式，但现在我知道，我无法在后台进程中切换场景。
有没有人知道如何实现这个问题？当我的后台进程收到来自客户端的消息时，我需要发起一个动作，但是我不知道最好的方法是什么......我已经找到了javafx.concurrent，但是我必须使用哪一个？
提前致谢！