套接字编程中的Java拖放问题

import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.control.Label;
import javafx.scene.input.*;
import javafx.scene.layout.StackPane;
import javafx.stage.Stage;

import java.io.*;
import java.net.Socket;

public class SocketDragAndDropExample extends Application {

    private static final int PORT = 12345;

    @Override
    public void start(Stage primaryStage) {
        Label label = new Label("Drag and Drop File Here");
        label.setOnDragOver(event -> {
            if (event.getGestureSource() != label && event.getDragboard().hasFiles()) {
                event.acceptTransferModes(TransferMode.COPY_OR_MOVE);
            }
            event.consume();
        });

        label.setOnDragDropped(event -> {
            Dragboard dragboard = event.getDragboard();
            boolean success = false;
            if (dragboard.hasFiles()) {
                success = true;
                for (File file : dragboard.getFiles()) {
                    // 在这里处理文件传输逻辑，例如将文件发送到套接字连接的另一端
                    try {
                        Socket socket = new Socket("服务器IP地址", PORT);
                        OutputStream outputStream = socket.getOutputStream();
                        FileInputStream fileInputStream = new FileInputStream(file);
                        byte[] buffer = new byte[1024];
                        int bytesRead;
                        while ((bytesRead = fileInputStream.read(buffer)) != -1) {
                            outputStream.write(buffer, 0, bytesRead);
                        }
                        fileInputStream.close();
                        outputStream.close();
                        socket.close();
                    } catch (IOException e) {
                        e.printStackTrace();
                    }
                }
            }
            event.setDropCompleted(success);
            event.consume();
        });

        StackPane root = new StackPane();
        root.getChildren().add(label);
        primaryStage.setScene(new Scene(root, 300, 200));
        primaryStage.setTitle("Socket Drag and Drop Example");
        primaryStage.show();
    }

    public static void main(String[] args) {
        launch(args);
    }
}