show JavaFX Exception Alert - Java JavaFX

Java examples for JavaFX:Alert

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Description

show JavaFX Exception Alert

Demo Code

/*/*from ww  w  .j  a v a 2 s  .  c  o m*/
 *  Quantbolome
 *    Copyright (C) 2016 Yasunobu OKAMURA All Rights Reserved.
 *
 *    This program is free software: you can redistribute it and/or modify
 *    it under the terms of the GNU Affero General Public License as
 *    published by the Free Software Foundation, either version 3 of the
 *    License, or (at your option) any later version.
 *
 *    This program is distributed in the hope that it will be useful,
 *    but WITHOUT ANY WARRANTY; without even the implied warranty of
 *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *    GNU Affero General Public License for more details.
 *
 *    You should have received a copy of the GNU Affero General Public License
 *    along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
import javafx.scene.control.Alert;
import javafx.scene.control.TextArea;
import java.io.PrintWriter;
import java.io.StringWriter;

public class Main{
    public static void showExceptionAlert(String headerText,
            String message, Throwable th) {
        StringWriter sw = new StringWriter();
        PrintWriter pw = new PrintWriter(sw);
        th.printStackTrace(pw);

        Alert alert = new Alert(Alert.AlertType.ERROR);
        alert.setHeaderText(headerText);

        if (message != null) {
            alert.setContentText(message);
        } else {
            alert.setContentText(th.getMessage());
        }

        TextArea textArea = new TextArea(sw.toString());
        textArea.setEditable(false);
        alert.getDialogPane().setExpandableContent(textArea);
        alert.showAndWait();
    }
}

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