我在try 更改嵌入在JavaFXAlert中的超链接对象中的文本 colored颜色 时遇到了一个问题(使用ExpandableContent).

此外，我想强调的是，CSS文件被添加到对话框中(事实上，背景 colored颜色 和其他格式被正确识别).

我的CSS class:alert_001

尽管我做了几次try ，但还是未能达到预期的结果. 超链接的文本 colored颜色 在alert 对象中保持不变.

DialogPane (dialog-pane)
+- ButtonBar (button-bar)
+--- HBox (container)
+------ Hyperlink (details-button more)(pseudo class state: visited)
+--------- LabeledText (text)

.alert_001 .dialog-pane .button-bar .container .details-button .more .text {
    -fx-text-fill: #bbbbbb;
    -fx-font-size: 12.0pt;
}

提前感谢您

Minimal reproducible example

Create a new Java project (Java 8, no Gradle)

Main class (Directory: src, Package: my.project, File: Main.java)

package my.project;

import javafx.application.Application;
import javafx.stage.Stage;

public class Main extends Application {

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

    @Override
    public void start(Stage stage) {

        final AlertComposer alertComposer = new AlertComposer();

        try {

            throw new Exception("Test");

        } catch (Exception e) {

            alertComposer.exception(e);
            throw new RuntimeException(e);

        }
    }
}

Alert composer class (Directory: src, Package: my.project, File: AlertComposer.java)

package my.project;

import javafx.scene.control.Alert;
import javafx.scene.control.DialogPane;
import javafx.scene.control.TextArea;
import javafx.scene.layout.GridPane;
import javafx.scene.layout.Priority;
import javafx.scene.layout.Region;

import java.io.PrintWriter;
import java.io.StringWriter;

public class AlertComposer {

    public void exception(Exception e) {

        String content = e.getMessage();
        Alert alert = this.build(Alert.AlertType.ERROR, "myTitle", "myHeader", content);

        GridPane expContent = buildExceptionGridPane(e);

        alert.getDialogPane().setExpandableContent(expContent);
        alert.showAndWait();
    }

    private GridPane buildExceptionGridPane(Exception e) {

        StringWriter sw = new StringWriter();
        PrintWriter pw = new PrintWriter(sw);
        e.printStackTrace(pw);
        String exceptionText = sw.toString();

        TextArea textArea = new TextArea(exceptionText);
        textArea.setEditable(false);
        textArea.setWrapText(true);

        textArea.setMaxWidth(Double.MAX_VALUE);
        textArea.setMaxHeight(Double.MAX_VALUE);
        GridPane.setVgrow(textArea, Priority.ALWAYS);
        GridPane.setHgrow(textArea, Priority.ALWAYS);

        GridPane expContent = new GridPane();
        expContent.setMaxWidth(Double.MAX_VALUE);
        expContent.add(textArea, 0, 0);

        return expContent;
    }

    public Alert build(Alert.AlertType type, String title, String header, String content) {

        Alert alert = build(type);

        alert.setTitle(title);
        alert.setHeaderText(header);
        alert.setContentText(content);

        return alert;
    }

    private Alert build(Alert.AlertType type) {

        Alert alert = new Alert(type);

        DialogPane dialogPane = alert.getDialogPane();
        dialogPane.setMinHeight(Region.USE_PREF_SIZE);

        dialogPane.getStylesheets().add(Main.class.getResource("/theme.css").toExternalForm());
        dialogPane.getStyleClass().add("alert_001");

        return alert;
    }
}

Theme CSS (Directory: resources, File: theme.css)

.alert_001 {
    -fx-background-color: #282828;
}

.alert_001 .header-panel {
    -fx-background-color: #45494a;
}

.alert_001 .label {
    -fx-text-fill: #bbbbbb;
    -fx-font-size: 12.0pt;
}

.alert_001 .button {
    -fx-border-color: #5e6060;
    -fx-border-radius: 10.0 10.0 10.0 10.0;
    -fx-background-color: #3c3f41;
    -fx-background-radius: 10.0 10.0 10.0 10.0;
    -fx-text-fill: #bbbbbb;
    -fx-font-size: 14.0pt;
}

要更改的文本 colored颜色