JavaFX:使用MySQL数据库中的数据填充ComboBox，StringConverter打破组合框

import javafx.application.Application;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.scene.Scene;
import javafx.scene.control.ComboBox;
import javafx.scene.layout.VBox;
import javafx.stage.Stage;
import javafx.util.StringConverter;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.Statement;

public class ComboBoxExample extends Application {

    private static final String DB_URL = "jdbc:mysql://localhost:3306/mydatabase";
    private static final String DB_USERNAME = "username";
    private static final String DB_PASSWORD = "password";

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

    @Override
    public void start(Stage primaryStage) {
        ComboBox<String> comboBox = new ComboBox<>();
        comboBox.setConverter(new StringConverter<String>() {
            @Override
            public String toString(String object) {
                return object; // 将对象转换为字符串
            }

            @Override
            public String fromString(String string) {
                return string; // 将字符串转换为对象
            }
        });

        try {
            Connection connection = DriverManager.getConnection(DB_URL, DB_USERNAME, DB_PASSWORD);
            Statement statement = connection.createStatement();
            ResultSet resultSet = statement.executeQuery("SELECT name FROM mytable");

            ObservableList<String> options = FXCollections.observableArrayList();
            while (resultSet.next()) {
                String name = resultSet.getString("name");
                options.add(name);
            }

            comboBox.setItems(options);
        } catch (Exception e) {
            e.printStackTrace();
        }

        VBox root = new VBox(comboBox);
        Scene scene = new Scene(root, 200, 200);
        primaryStage.setScene(scene);
        primaryStage.show();
    }
}